Category Archives: littoral

Warship Wednesday 20 May 2026: Long Night of the Wolf

Here at LSOZI, we take a break every Wednesday to explore the old steam/diesel navies from 1833 to 1954, profiling a different ship each week. These ships have a life, a tale all their own, which sometimes takes them to the strangest places.- Christopher Eger 

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Warship Wednesday 20 May 2026: Long Night of the Wolf

Naval History and Heritage Command NH 85868

Above we see the modified Spica (Alcyone)-class torpedo boat Lupo at sea during maneuvers likely at the “H” naval review off Naples on 5 May 1938. Note her “LU” hull identifier, 3.9″/47 OTO M1937 forward, and four 17.7-inch torpedo tubes aft.

Lupo had a short career– as did most of her assorted three dozen sisters– but she was exceptionally well-fought (or lucky, depending on the outlook) some 85 years ago this week.

The Spicas

The Italian navy was huge, and I mean huge, fans of torpedo boats.

Going back to the 80-foot Thornycroft-built Nibbio and Yarrow-built Avvoltoio in 1881, they had already built and discarded more than 60 Aldebaran and Euterpe class boats before the Great War began.

In the early 1920s, the fleet had almost 100 newer torpedo boats on hand (Condore, Pellicano, Gabbiano, four Sirio class, 18 Perseo class, four Oriones, 38 1PN-class, 39 40PN-class) that went 200~ tons, were good for 25-27 knots, and carried a few 350mm or 450mm tubes with a couple of light guns.

Italian torpedo boat 54 AS during World War I. She was one of 39 40PN-class boats built during the war. At 150 tons, they ran 139 feet oal, could make 27 knots, and carried two 76mm guns, two 450 TT, and had space for 10 mines.

That’s not even counting the 422 small 20-30 ton mosquito boats of the MAS (Motoscafo Armato Silurante) type that were ordered during the Great War, of which 244 were completed.

As we said, the Italians really liked torpedo boats. I mean, if you look at the Italian coastline and consider the short ranges involved in fighting in the Adriatic and chokepoints such as the Strait of Messina and Strait of Bonifacio, it makes perfect sense.

Fast forward to the late-1920s/early 1930s and, with Italy’s 100 Great War vintage large torpedo boats slow, poorly armed, and aging, the Italian admiralty moved to replace them with a new class of faster (34 knots) boats that were much better armed (three 3.9-inch guns, four Vickers 40mm AAA guns, four 450mm tubes, as many as 28 mines).

To allow the weight and space for needed engines (two sets of Tosi geared steam turbines and two Yarrow boilers generating 19,000hp, good for 37 knots) and extra armament, this new class of TBs would come in just under 600 tons (on paper) to take full advantage of the London Naval Conference of the 1930s minimum tonnage threshold for regulated warships.

This left a fairly large 269-foot hull with a layout similar to a downsized Italian Freccia class destroyer (1,200 tons, 315 feet oal, 44,000hp). When compared to other navies, these ships would be more akin to destroyer escorts or frigates, only faster and without the ocean-crossing range, the latter a feature that the Italians didn’t need.

The Italian Freccia-class light (1,200 ton) destroyer Saetta, probably at the 5 May 1938 fleet review off Naples. The Spicas could be seen as essentially just downsized Freccias at 45 feet shorter and half the weight.

Main gun armament was three OTO 100/47 Mod. 1931 guns in single mounts, backed up by a AAA battery of eight 13.2 mm machine guns in four twin Breda Mod. 31 mounts.

Torpedo armament was four 17.7-inch tubes arranged either in a twin turnstile with a single tube on each side of the bow, as in class-leader Spica, or in four single tubes, two on each side of the bow, as in the Vega and her flight.

17.7-inch torpedo tube mount on an Italian torpedo-boat, summer 1941

450 mm (17.7 inch) torpedo being launched by the Italian Spica class torpedo boat Pallade during an exercise, 1936

See below from Jane’s 1938 edition:

Jane’s 1938 entry. Disregard the mention of 37mm guns. Only Spica and Astore had two twin 40/39 Vickers-Ternis. None had 37s. The typical pre-war AAA mounting was M.31 Breda mounts with twin 13.2mm guns. These were later replaced by twin Breda 20/65 Mod. 1935 and then by four single Scotti-Isotta-Fraschini 20/70 Mod. 1939 mounts.

They also had weight and space reserved for two depth charge throwers, although they had no listening gear, at least pre-war.

When it came to mines, they could both mechanically sweep (with embarked cables and paravanes) and lay mines (able to carry up to 28) if needed.

Lupo’s stern showing her paravane stowed with a good look at her two aft 3.9″/47 OTO mounts.

A good stern view of Lupo showing her beam-mounted tubes, aft 3.9s, and “peppermint” aerial recognition pattern over her bow

Named for constellations, the first two of the class, Spica and the Astore, both built in the Bacini & Scali Napoletani (BSN) yard between 1933-35, were sold to Sweden in 1940 and commissioned as the destroyers (jagaren) Romulus and Remus, respectively, serving that Scandinavian Navy until 1958.

HSwMS Romulus (Jagare Nr 27) Swedish Marinmuseum  D 14939:179

Plan of HSwMS Romulus (Jagare Nr 27) in her 1950s layout, sans torpedo tubes and with sonars and M/48 Bofors 40mm guns fitted. Swedish Marinmuseum

The next 30 were built in three flights (16 “Alcyone” type, 6 “Climene” type, and 8 “Perseus” type) with very minor variations in armament. Besides BSN, which built four more vessels, CT Riva Trigoso built two (Canopo and Cassiopea), CNR Ancona built four, Ansaldo Genoa built 12, and CNQ Fiume 6, all entering service by November 1938.

The brand new Italian Spica-class torpedo boat Calipso setting sail from Naples. She was sunk on 5 December 1940, by mines from submarine mine-layer HMS Rorqual east of Tripoli

Launch of Italian Spica-class torpedo boat Altair in 1936. She was sunk on 20 October 1941 in the Saronic Gulf, also by mines laid by HMS Rorqual

They proved prolific in pre-war images of the Regia Marina at play.

Several Italian Spica-class torpedo boats photographed in 1938. The Circe (1938-1942) appears in the left foreground. NH 85999

Italian Trento-class heavy cruiser and Spica-class torpedo boats in the late 1930s, probably photographed at the 5 May 1938 naval review off Naples, Italy. NH 86334

Italy Torpedo Boats. CG=Cigno, SI=Sirio, VG=Virgo, SG=Sagittario, PS=Perseo, AD=Andromeda (classe di Climene). Spica – Partenope class, circa 1938. New York Times Files. NH 111510

Several Italian Spica-class torpedo boats, probably photographed at the 5 May 1938 naval review off Naples. NH 111485

Meet Lupo

Lupo was one of a dozen of the Spicas built by CNQ (Cantieri navali del Quarnaro S.A.) in Fiume in spitting distance of the old Whitehead torpedo factory with her direct sisters Libra (LB), Lince (LC), and Lira (LR), all having the same armament and arrangement.

Late model boats, they suffered a bit from mission creep and had grown to 785 tons standard, 1,035 full load, on a hull some six feet longer than the original Spica design but with the same engineering plant. This dropped the maximum speed down to just over 30 knots, a big difference from the blistering 37 that Spica got in light load on trials.

Italian torpedo boat Libra (Fiume-built Alcione type Spica class). Circa 1939. Note her two stern 3.9″/47s, twin paravanes, beam-mounted torpedo tubes, and Breda 13.2mm AAA guns on bandstands amidships. NH 111428

To be sure, by this stage, they were more DE than TB.

Jane’s 1938 entry putting Lupo and the rest of the “L” boats built by CNQ as part of the 16 Alcyone/Alcione type vessels listed as Partenope type.

Laid down 7 December 1936, Lupo launched 7 November 1937, and commissioned 20 February 1938, under the command of LCDR (capitano di corvetta) Pio Valdambrini, based in Sicily.

Lupo at launch, when she carried an “LP” pennant. This was soon changed to “LU.”

War!

By the time Italy entered WWII on the side of the Axis during the Fall of France, Lupo and sisters Lince, Libra, and Lira, were part of the VIII Torpedo Squadron (Squadriglia torpediniere) based at Torpediniere Rhodes in the Aegean Naval Command.

Beginning the war under the command of LCDR Gennaro Cioppa, by December 1940, Lupo’s skipper was 37-year-old LCDR Francesco Maria Mimbelli. A Livorno-born regular from a Dalmatian family who put on his cadet uniform at age 15, by 1923, he was serving as a junior officer on the gunboats Caboto and Carlotto on China Station. Part of the Italian delegation sent to the London Naval Conference, he later served on the cruiser Trento and commanded torpedo boats during the 1939 invasion of Albania.

Lupo drew her first blood at 18:00 on 31 January 1941 when, taking part in a patrol of the Caso Channel in the Dodecanese with sister Lince, spotted part of British Convoy AN.14 and went in to attack. Headed from Alexandria to Piraeus, the small (Aegean Northward) convoy element had two merchantmen escorted by the light cruiser HMS Calcutta and two corvettes.

With Lince pulling away Calcutta with a torpedo attack that failed, Lupo went after the largest merchie, the big Shell tanker Desmoulea (8,120 GRT), and hit her with two fish (the British say one), badly damaging the vessel. Abandoned by her crew in a sinking condition, the tanker was later towed the next day to Suda Bay with her cargo intact.

Notably, along with torpedo damage inflicted on the cargo ship Clan Cumming (7,264 GRT) of Convoy AS.10 on 19 January by the Adua-class submarine Neghelli (NG), Lupo’s hit(s) on Desmoulea were the only Italian naval successes against British convoys in the Aegean.

Lupo and her sisters were soon pressed into service shuttling troops around the Greek littoral.

On 25 February, she and Lince, along with the old destroyers Crispi and Quintino Sella, carried a reinforcement force of 240 soldiers and 88 marines to the embattled islet of Castelrosso (Kastellorizo​) in the Levantine Sea, which was being assaulted by British 50ME Commandos in the rather slapstick Operation Abstention. This led to a swirling night action between the two TBs and the British destroyers HMS Hereward and Decoy, with no casualties on either side. Finally able to land their troops on the 27th, Lupo and Lince also turned their 3.9-inch guns on said Commandos (reportedly causing three deaths and seven wounded), which withdrew the next day.

This brings us to the…

Night of the Wolf

As part of the epic German airborne assault on Crete, while Kurt Student’s Fallschirmjäger made their last ride-of-the-Valkyries level jump to glory in Operation Merkur, a two-pronged seaborne assault was attempted by the mountain troops of Julius Ringel’s 5. Gebirgs-Division.

One of these convoys of mountain troops was made up of 21 overloaded requisitioned Greek caiques, coasters, and barges, carrying 2,331 men, which left Piraeus on 19 May, bound for Maleme on the Allied-held Greek island at a lumbering seven knots. A second, larger, flotilla of 42 vessels would carry 4,000 mountain troops to Heraklion.

Both convoys were surveilled by RAF reconnaissance aircraft and duly reported.

The smaller Gebirgsjäger convoy was escorted at first by the Spica-class torpedo boat Sirio, but had to be replaced as she lost her starboard propeller. Her intended replacement, the old de-rated destroyer Curtatone, was sunk by mines on 20 May.

This left Lupo to answer the call alone.

Assigned to the defenseless convoy of wallowing caiques, she arrived on scene on the 21st of May and by that night made contact with British RADM Irvine Glennie’s Force D north of Canea, still 18 miles from their intended landing beaches at Maleme.

First involved was the destroyer HMS Janus, which Lupo fired two torps at from 1,000m at 2233.

Then came another vessel looming out of the night, the cruiser HMS Dido, which got a third and fourth torp fired at her from 700m at 2235.

Then came a second cruiser, HMS Orion, which she avoided ramming by just a few feet.

A third, the legendary HMS Ajax of Graf Spee fame, was on scene, as were the destroyers Hereward, Hasty, and Kimberley.

There was no way one Italian torpedo boat could compete with that kinda pressure, especially when the Brits had radar on their side. Just counting the cruisers, Lupo had three 3.9-inch guns against the British cruiser’s 10 5.25-inch and 16 6-inch guns. Then add the 20 4.7-inch guns on the four British greyhounds.

Lupo broke contact, and the Brits were able to sink 10 caiques in the night, sending over 300 German troops to the bottom of the Med, decimating the III Battalion of the 100th Gebirgsjäger regiment. Two caiques, altogether loaded with 113 Germans, made it to shore on Crete at Cape Spatha. The other caiques were able to slip away in the confusion and made it back to Piraeus.

Lupo during the Battle of Crete convoy action

The second, larger, convoy was recalled to prevent a similar fate.

The only damage done to the RN was via friendly fire, with Orion suffering 11 casualties due to 40mm (2-pounder) hits (which Lupo didn’t carry). The Brits also fired a tremendous amount of ammunition in the clash, with the cruisers firing some two-thirds of their magazines (Orion had 38 percent of her shells left, Ajax 42 percent, and Dido just 30 percent). Further, Ajax rammed and sank a troop-carrying barge, damaging her bow in the process, her stem fractured and bent over waterline level, and her forepeak flooded.

Lupo had been hit at least 18 times by 6-inch and 4.7-inch shells from British destroyers and cruisers, although most of the AP rounds passed cleanly through her without exploding. She suffered two dead, quartermaster Orazio Indelicato and gunner Nicolò Moccole, and 26 wounded. This against a complement of 116 officers and men. She nonetheless returned to the scene of the convoy massacre at dawn on the 22nd to pick up survivors, with Lupo, seaplanes, and rescue launches picking up 242 waterlogged Gebs by 1600 that afternoon.

The 5th Gebirgs-Division reported 506 missing in the Crete campaign, with most having drowned with the caiques, delivered to Posiedon by Force D.

German assault on Crete – May 1941 via USMA collection

Most of the Gebs involved in Operation Merkur that arrived on Crete did so as fly-in reinforcement, with 5,000 brought by Junkers 52s.

As for Lupo, she sailed back into Taranto looking like Swiss cheese.

The clash saw Mimbelli awarded the Gold Medal of Military Valour, while Lupo had the Silver Medal placed on her ensign.

Continued campaigning

Repaired and refitted, Lupo picked up a more ASW-oriented battery to include landing her 13.2mm guns for four twin Breda 20/65 Mod. 1935s, and taking on hydrophones and as many as 40 depth charges, with many of her sisters so converted.

Italian Libra (Fiume-built Alcione type Spica class), late in the war with camouflage. Note her depth charge racks instead of torpedoes and twin Breda 20/65 Mod. 1935 on port beam. Aldo Fraccaroli collection.

Thus rearmed, the Spicas became a fixture on Italian convoys in the Med, supplying outposts in occupied Greece and running troops to North Africa.

Italian Spica class torpedo boat Lupo, May 1941

Italian Spica class torpedo boats Libra, Lupo, and Lira in Mytilene, 4 May 1941

Italian torpedo boat Lupo and hospital ship Gradisca Tobruk, Libya, on 28 May 1941

While escorting a convoy of four steamers with the torpedo boats Altair and Monzambano and the auxiliary cruiser Barletta on the evening of 19 October 1941, Altair struck a mine laid eleven days earlier by the British submarine Rorqual in the Gulf of Athens, and her sister Lupo came to her aid. Taking 124 men aboard from Altair, Lupo tried to tow the vessel, whose bow had been blown off, but had to cut ties and let the stricken TB sink.

On 23/24 November 1941, Lupo and sistership Cassiopea, while escorting two German steamers, Maritza and Procida, to Benghazi with supplies for Rommel, bumped into British Force K, which had been birddogged to the convoy by deciphered Ultra messages. This pitted the two Italian TBs against the light cruisers HMS Aurora and Penelope and the destroyers HMS Lance and Lively. The resulting night action in the rain left the two German steamers sunk, but the Italians survived to fight again. Lupo is generally credited with hitting Penelope’s superstructure with her 3.9s, causing minor damage, and in turn, picking up some minor damage herself.

Lupo was with another convoy, from Piraeus to escort to Suda, again with sister Cassiopea, escorting three merchies when they escaped an attack from HM Submarine Porpoise on 17 January 1942.

In March 1942, the now-famous Mimbelli was sent to command the IV MAS Flotilla operating in the Black Sea, leaving Lupo in the hands of her third wartime skipper, LCDR Giuseppe Folli.

Committed to a series of Piraeus to Tobruk convoy runs, it was on one of these sorties on 2 September 1942 that Lupo’s convoy came under the combined attack of USAAF B-24s and HM Submarine Thrasher.

On her next run to Tobruk, with sister Sirio and three small freighters, Lupo survived an attack from HM Submarine Taku.

The extremely lucky Lupo’s run ended on the evening of 2 December 1942 when, along with the TBs Ardito, Aretusa, and Sagittario, she was escorting three steamers from Naples to Tripoli. After dodging Albacore bombers of NAS 828 out of Malta, which struck the steamer Veloce, the convoy again found its old nemesis, Force K, this time composed of the radar-equipped destroyers HMS Jervis, Nubian, Kelvin, and Javelin.

Lupo, at the time attempting to tow Veloce and bathed in the light of 40-inch searchlights, was smothered in 4.7-inch shells at 2,000 yards, and sank in the Gulf of Gabès at 2345.

Lupo carried LCDR Folli and 134 other souls to the bottom of the sea. Just 29 survivors were picked up by Ardito.

The shattered wreck of the ship, missing her bow and stern, was found approximately 96 miles SW of Lampedusa and 20 miles off the Kerkennah Islands in December 2011 by AHTS Buccaneer, some 435 feet down. It has been extensively surveyed.

Epilogue

The Italians recycled the name “Lupo” for Battaglione Lupo, a marine infantry unit within the infamous XÂŞ Flottiglia MAS in 1944. It fought with Mussolini’s rump Italian Social Republic in Northern Italy against Allied forces and partisans until the end of the war.

Lupo Battalion Italian Marines of X MAS division, La Spezia, Italy, 1944. Note the “samurai” mag carriers and MAB 38 Beretta SMGs.

The modern Italian Navy commissioned a frigate (F 564) using the Lupo name in 1977, which served until 2003. She is still in service with Peru as BAP Palacios (FM-56).

Italian frigate Lupo (F564)

Of Lupo’s 30 Spica-class sisters in Italian service, 23 were lost during the war. Seven survivors returned to Italian service, modernized as fast corvettes outfitted with radar, sonar, and Hedgehog ASW devices. The last two, Sagittario and Libra, were only retired in 1964.

As for Lupo’s only victim during the war, the Greenock-built Shell D-class tanker Desmoulea was patched up, survived a second torpedoing in May from an Italian S.79 bomber, was patched up again, survived German He. 111s, and continued sailing until 1961. A tough-to-kill tanker for sure!

The Shell tanker, Desmoulea, Fremantle, 1948. Fremantle History Collection LH004488

Lupo’s most famous skipper, LCDR Mimbelli, earned two Iron Crosses (EK1 and EK2) for the Sevastopol campaign and picked up two companion Silver Medals and five Bronze to his Gold for leading several actions with his speedy MAS boats along the Calabrian and Sicilian coasts. Post-war, he commanded the battleship Vittorio Veneto and the cruiser Garibaldi before heading the Naval Academy in Livorno.

The Italian fleet’s CNO from September 1959 to April 1961, Ammiraglio di Squadra Francesco Maria Mimbelli, moved to the retired list in 1964 and passed in 1978, having spent 57 of his 72 years in uniform.

As noted by the Marina Militare, “The mission report of the Royal Torpedo Boat Lupo, written by Commander Mimbelli in a dry and elegant style, is kept by the Historical Office of the Navy in Rome, for current and future generations.”

In 1993, an Ammiragli-class destroyer, ITS Mimbelli (D 561), was commissioned with his name and remains in service.

The destroyer Francesco Mimbelli in Valletta, Malta, 17 May 2005. Wiki Commons by Anthony Vella.

Thanks for reading!

Meminisse est ad Vivificandum – To Remember is to Keep Alive

***

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NOAA: USV Powerhouse?

NOAA’s Office of Coast Survey (OCS) is currently utilizing fully uncrewed contract USVs for an offshore hydrographic survey mission along the Florida Gulf Coast.

Operated by Woolpert, the mission is being conducted by Chance Maritime’s Chance MC29 and larger MC40 platforms.

The Chance MC40

Chance MC40

Over the multi-month project, Woolpert will survey approximately 11,000 linear nautical miles. Woolpert hydrographers, positioned across multiple time zones, will remotely conduct hydrographic surveys around the clock. Survey data is uploaded to a cloud server via Starlink satellite communications, where it is ingested into Woolpert’s Automatic Survey Production Environment (ASPEN) and made ready for further postprocessing by Woolpert’s hydrographic processing team.

In an expansion of the concept, NOAA just awarded Chance a $21.6 million contract for up to eight Chance LR30 platforms, equipping NOAA with a fleet of long-endurance USVs purpose-built for hydrographic and fisheries surveys.

Coupled with what the USCG is doing with Saildrones, this is all some very good vetting of programs with some serious 21st-century military applications, without which Big Navy can surely piggyback off of.

I hope people are paying attention.

Chance LR30 Uncrewed Surface Vessel

Chance LR30 Uncrewed Surface Vessel

Meanwhile, CTF 66 and CTF 68 are operating robotic and autonomous systems alongside our Norwegian Allies to strengthen our collective ability to conduct operations in the Arctic. (Photos by MC1 Brandie Nuzzi).

RAMSUND, Norway (May 12, 2026) — A Global Autonomous Reconnaissance Craft and Lightfish Unmanned Surface Vessel, attached to Commander, Task Force (CTF) 66, operate in Breivika Bay during Arctic Sentry 2026. Launched in February 2026, Arctic Sentry reflects Allies’ collective understanding that NATO must do even more as an alliance to ensure security in the Arctic and the High North, and to further strengthen its ability to operate in the region. (U.S. Navy photo by Mass Communication Specialist 1st Cla

RAMSUND, Norway (May 12, 2026) — A Global Autonomous Reconnaissance Craft and Lightfish Unmanned Surface Vessel, attached to Commander, Task Force (CTF) 66, operate in Breivika Bay during Arctic Sentry 2026. Launched in February 2026, Arctic Sentry reflects Allies’ collective understanding that NATO must do even more as an alliance to ensure security in the Arctic and the High North, and to further strengthen its ability to operate in the region. (U.S. Navy photo by Mass Communication Specialist 1st Cla

RAMSUND, Norway (May 12, 2026) — A Global Autonomous Reconnaissance Craft, attached to Commander, Task Force (CTF) 66, operates in Breivika Bay during Arctic Sentry 2026. Launched in February 2026, Arctic Sentry reflects Allies’ collective understanding that NATO must do even more as an alliance to ensure security in the Arctic and the High North, and to further strengthen its ability to operate in the region. (U.S. Navy photo by Mass Communication Specialist 1st Class Brandie Nuzzi)

RAMSUND, Norway (May 12, 2026) — Commander, Task Force (CTF) 66, Unmanned Surface Vessel Squadron Three (USVRON 3) Division 32, Black Sea and technical support personnel pose for a photo during Arctic Sentry 2026. Launched in February 2026, Arctic Sentry reflects Allies’ collective understanding that NATO must do even more as an alliance to ensure security in the Arctic and the High North, and to further strengthen its ability to operate in the region. (U.S. Navy photo by Mass Communication Specialist 1

Jetting around the Baltic littoral

Aurora 26 just wrapped up in the Baltic, with 18,000 soldiers from 13 countries participating in the Swedish-led NATO exercise. It notably included some Ukrainian drone operators to serve as, among other things, a very capable and modern OPFOR.

Images released by the Swedes are stirring, highlighting two battalions (2.amfibiebataljonen and 5.amfibiebataljonen) of the Swedish Navy’s Amphibious Corps, are great.

Photos: Bezav Mahmod and Hampus Andersson/Försvarsmakten

They also include shots of a couple of massed CB90 (StridsbĂĄt 90H) waves, with each of the highly maneuverable 52-foot shallow-draft (31 inches) jet boats capable of toting 20 troops at 40 knots.

Sure, they would usually move in much smaller groups, at night, but the photo op is amazing, and sends a bit of a point.

Genom styrka hĂĄller vi kriget borta (Through strength we keep war away). Indeed.

Blockade Prizes and Bounty Money, 1898

Spanish-American War, 1898. The prize crew going to take possession of the Spanish Colon after she was run aground after the Battle of Santiago, Cuba, July 1898. From Journal of Naval Cadet C.R. Miller, USN. 1898. Description: NH 2201

As the war in the Hormuz and the resulting blockade stretch into their 10th and fifth weeks respectively, and following up to yesterday’s Warship Wednesday on the blockade-enforcing lighthouse tender Mangrove, here is a closer look at the prizes from the Spanish-American War.

The first Spanish ships, the steamers Buena Ventura and Pedro, were captured on 22 April 1898 by the battleship USS New York and her accompanying escorts, with the gunboat Nashville claiming the prior.

The USS Nashville (Gunboat No. 7) fired the first shots of the war across the bow of the Spanish steamer Buena Ventura, outbound with a cargo of Mississippi pine lumber from Pascagoula to Rotterdam, to bring her to a stop on 22 April 1898, nine miles from Sand Key Light.

The capture took place just before the formal declaration of war, while the U.S. was establishing a blockade of Cuba, and the seizure was later upheld by the Supreme Court, 175 U.S. 384 (1899). Her cargo was released, as it was headed to the Netherlands, while Buena Ventura was sold at auction for $12,200, with a portion of that divided by the crew of Nashville and her squadron.

On the 23rd, the schooners Matilda and Condita were impounded. The 24th brought the steamer Miguel Jover and the schooners Sofia and Catalina.

This snowballed to 18 ships by the end of April, another 14 collected in May, just four in June, 19 in July, and one in August, with a total of at least 56 large commercial vessels impounded and sent to the court for adjudication.

All but four impounded vessels were “condemned with cargo” by the courts and sold, with 10 owners pushing the outcome to the Supreme Court.

The outliers that escaped sale included the British steamer Restormel Barry, which was released after her cargo was impounded. The British sloop Pilgrim was ordered released with cargo intact, as was the Mexican steamer Tabasqueno. The Spanish tug Humberto Rodriguez, seized off Nuevitas just two weeks before the end of the war by the auxiliary cruiser USS Badger, was ordered released by a New York Court as the tug carried red cross markings.

Some $701,034.36 was realized after auctions, deposited into the U.S. Treasury– with portions of said prizes paid to the crews of the vessels that captured them, an American tradition going back to 1798 and carried over from the British.

From the government records:

The above doesn’t include small coastwise vessels, of which an untold armada was collected, and were sold locally without being towed back to the U.S.

A prime example given is the auxiliary cruiser USS Dixie, which alone captured 89 lighters and sailing vessels at Ponce, considered a “good haul.”

Carrying 10 6-inch guns, the auxiliary cruiser USS Dixie, under CDR Charles H. Davis, had a very good war in 1898, entered the harbor at Ponce, Puerto Rico, on July 27, forcing the town to surrender and securing a landing place for the U.S. Army forces, claiming 89 of 91 small vessels in the harbor for her trouble. Post-war, she became the Navy’s first destroyer tender, AD-1, and continued to serve until 1922.

It should also be noted that this is above and beyond claims for Bounty filed by U.S. warships for destroyed and/or captured Spanish naval vessels, with the monies distributed to the crews, with squadron commanders included at a larger share.

For reference, Dewey was awarded $28,070 in bounty and prize money for the Battle of Manila Bay (his “cut” of $244,400) while Sampson pocketed a more paltry $8,335 (out of $166,700) for the destruction of the Spanish squadron off Santiago. Keep in mind that the base rate for rear admirals of the era was $4,675 per annum.

All awards of prize money and bounty money to U.S. Navy personnel were abolished by Congress via the Act of March 3, 1899 (30 Stat. 1121), with later much-hyped instances, such as the capture of the German cargo ship Odenwald in 1941 by the USS Omaha and Somers, being paid under salvage rights granted under maritime law, not as “head” money.

Warship Wednesday 13 May 2026: Unexpected Blockade Enforcer

Here at LSOZI, we take a break every Wednesday to explore the old steam/diesel navies from 1833 to 1954, profiling a different ship each week. These ships have a life, a tale all their own, which sometimes takes them to the strangest places.- Christopher Eger 

If you enjoy my always ad-free Warship Wednesday content, you can support it by buying me a cup of joe at https://buymeacoffee.com/lsozi As Henk says: “Warship Coffee – no sugar, just a pinch of salt!”

Warship Wednesday 13 May 2026: Unexpected Blockade Enforcer

Photo from the collection of Rosalie and Bascom Grooms, Sr., courtesy of Florida Keys Public Libraries

Above, we see the U.S. Lighthouse Service Tender Mangrove around 1897, when she entered service.

Though not built with military service in mind, Mangrove would serve in three wars under Navy orders, including one where she fired the last shot and captured one of the largest enemy prizes.

Background on the Lighthouse Service’s steel tenders

The foundations of the Lighthouse Service, also known as the U.S. Light-House Board, were advanced by a Congress whose Senate was headed by John Adams and approved by President Washington on 7 August 1789.

While not a military branch, Navy officers often filled many roles in the organization, and its men and tenders clocked in for the greater good during times of war. For instance, during the War of 1812, the keeper of the lighthouse at Havre de Grace, Maryland, is reported to have defended that town from an attack by the enemy.

The USLHT Van Santvoort was transferred to the Union Navy in 1861 and served as the gunboat USS Coeur de Lion during the Civil War, while USLHT Shubrick— which carried several small guns in order to protect light keepers and citizens from Indian attacks on the Oregon coast– transferred to the Revenue Cutter Service. Famously, the service’s head in 1860 was one CDR Raphael Semmes, USN, soon to be captain of the CSS Alabama, while at least five USLHTs were seized in Southern states, with most pressed into service with the CSN.

At the end of FY1893, the USLHS had 1,312 lighthouses and beacon lights, 419 day beacons, 1,751 post lights, 4,315 assorted buoys in position, 39 lightships, and 32 tenders to service them, including two sail and 30 steam, the latter often with auxiliary sail rigs. Staffed by 1,139 lightkeepers, 1,503 laborers, and 821 “other employees, including crews of lightships and tenders,” the service was spread thin across 16 coastal districts as well as several large inland river systems. All this was paid for by an outlay of $2,558,500, with the largest expense ($670,000) being that of lightkeeper salaries. Vessel and crew expenses for tenders came in at a paltry $250,000, or about one tenth of the overall budget.

The 1893 period saw the USLHS add two new large steel-hulled sea-going steam tenders, the 800-ton/164-foot Maple, built for $93,888 in New Jersey for use with the 5th LH District out of Baltimore, and the $92,125 Ohio-built Columbine (643-tons/155-foot oal), for the 13th LH District in Oregon. Columbine’s twin sister Lilac had been delivered the year prior.

US. Lighthouse Tender Columbine, steaming, at 15 knots, Columbia River, May 10, 1894. She later served in the Navy twice during wartime, was in commission for over 32 years, and steamed a total of 400,920 miles. Courtesy of Rear Admiral A. Farenholt, (MC), USN. NH 55298

Lighthouse Board plan for Lilac and Columbine

Other modern tenders delivered in the years prior included the Madrono (1885) and the Armeria (1890), both of similar 164-foot designs.

Tender Madrono, 164-foot USLHS tender commissioned 1885

Complete with compound steam engines, Scotch-type boilers, twin propellers, and a deck that featured a wooden derrick with a steam-powered winch, these were a new breed of general-purpose vessels and had a general layout that the service would stick with for the next forty years. They proved capable of supplying fuel, mail, and materials to remote lighthouses; transporting work crews and equipment up and down the coastline, towing lightships, and setting even the heaviest of buoys. Further, they typically proved to be excellent sea boats while still being able to operate in shallows as low as nine feet.

This sets the stage for our subject.

Meet Mangrove

A steam tender of the new sea-going type was approved in FY1896 to service the 7th Lighthouse District (from Miami to Mobile Bay) and the 8th (Mobile Bay to the Rio Grande). The contract was awarded to Crescent Shipyard, Elizabethport, New Jersey, and construction began. The final $37,500 of the tender’s $74,997.63 cost was appropriated on 4 June 1897 by the sundry civil appropriation act.

She was to be 164 feet overall with a 30-foot beam and draw just over eight feet under her hull with a standard 821-ton displacement. Rated for 10 knots, she had two Page Burton watertube coal-fired boilers and two compound inverted reciprocating steam engines driving two four-bladed props.

Among her outfit was a hydraulic hoisting winch, a new piece of equipment for the service, and a naphtha “alchol-vapor” powered launch acquired from the Valor Engine Company for $1,371.90.

The new tender, the first to be named Mangrove in the LHS standard “tree” naming convention, was launched on 26 June 1897, sponsored by Miss Mabel Snow, wife of CDR (later RADM) Albert Sidney Snow, USN. A veteran of the Civil War and 1871 Korean expedition, Snow, at the time, was holding the post of Inspector for the 3rd Lighthouse District.

A near sister, the 164-foot USLHT Mayflower, was completed at Bath Iron Works at the same time.

Mangrove was commissioned on 1 December 1897 and assigned to Key West. Arriving aboard Mangrove was a new skipper, Captain Phillip Louis Cosgrove, Sr., a Key West fixture who had been with the USLHS since 1873 and was pretty salty at age 64, having previously commanded the tenders Arbutus and Laurel for many years.

Leaving Tompkinsville, New York, on 27 December 1897, Mangrove arrived at her new home in Key West on 8 January and soon got to work establishing new buoys in the Dry Tortugas. In the first quarter of 1898, she steamed 2,634 nm on USLHS missions, burning some 404 tons of coal in the process. In that time, her crew cleaned and painted 115 buoys, changed 83, and worked three days at the district’s light house depot.

On the evening of 15 February 1898, the battleship USS Maine sank while at anchor in Havana following a terrific explosion, and Mangrove, just heading into her fifth week on station at Key West, was the closest and most prepared American vessel to the stricken warship.

Mangrove, with Captain Clendenin, Assistant Surgeon, U.S. Army, and his hospital steward aboard, left for Havana from Key West immediately at 0300 on 16 February under the orders of CDR  James M. Forsyth, commander at the naval station there, followed by the 160-foot gunboat USS Fern (which, ironically, was a former USLHST).

Arriving on scene the next morning, Mangrove loaded the Maine’s 60 wounded survivors for return to the United States. A second sortie from Key West to Havana and back soon after would carry salvaged guns and evacuated U.S. civilians from Cuba.

USS Maine, sunk in Havana Harbor, Feb. 15, 1898

Refugees from Havana brought by Mangrove to Fort Taylor in Key West, along with the original graves of the lost Maine crew

A court of inquiry was held in Mangrove’s salon to try to ascertain the cause of the destruction of the Maine. With much of the inquiry held in Havana over the first two weeks of March, Mangrove’s searchlights were in continuous use each night, assisting divers and other activities as the Navy officers made their home on the humble tender.

USS Maine Court of Inquiry, 1898. Members of the Navy Court of Inquiry examining Ensign Wilfrid V. Powelson, on board the U.S. Light House Tender Mangrove, in Havana Harbor, Cuba, circa March 1898. Those seated around the table include (from left to right): Captain French E. Chadwick, Captain William T. Sampson, Lieutenant Commander William P. Potter, Ensign W.V. Powelson, and Lieutenant Commander Adolph Marix. “The Court made a most patient, thorough, and searching investigation into all matters pertaining to the destruction of the Maine, examining the wreck in detail, above and below the water line, with the assistance of expert Naval Constructors and divers, and examining all witnesses whose testimony promised to throw light, in the faintest degree, on the subject.” NH 46764

After meeting on Mangrove for 18 days of hearings, the Court shifted to the more regal and accommodating battleship USS Iowa, newly arrived at Key West from Hampton Roads, from whose deck it released its report on 21 March, stating they felt Maine had been destroyed by a submarine mine of unknown origin.

On 10 April, Mangrove was transferred to the Navy Department and retained her name but became USS rather than USLHST. Mangrove received a new, more warlike skipper, LCDR William Henry Everett (USNA 1867), borrowed from the old gunboat USS Michigan, along with a quick coat of grey paint, two 6-pounder guns, and a 1-pounder. Everett also had a young ensign assigned to him, one John H. Dayton, and an even younger midshipman– one of 123 such cadets pulled from class and rushed from Annapolis to help flesh out the ranks for the war. Ole Phil Cosgrove remained on board as first mate and sailed to war as such.

Additionally, Mangrove was fitted with cable repair and grappling tackle with the idea that she would be useful in cutting the telegraph lines around Cuba and Puerto Rico. Meanwhile, her 30-man crew would get on-the-job training as instant bluejackets, sans crackerjacks.

War (her first)

On 21 April 1898, two months after the sinking of the battleship Maine in Havana and 11 days after Mangrove transferred to the Navy, the United States declared war on Spain.

The blockade began in earnest on the morning of 23 April, with Mangrove reporting to Capt. Henry Clay Taylor of the battleship USS Indiana, which also had the armed tug USS Algonquin in retainer.

After helping to cut the submarine cable out of Havana on the evening of 25 April, Taylor ordered Mangrove North to Key West on a mail run, then sped Indiana south toward RADM Sampson’s flagship, USS New York. At around 5:25 p.m., Mangrove spotted a large ship approaching Havana. It turned out to be the Trasatlántica company liner, SS Panama (2,080 GRT), en route from New York to Havana, Progresso, and Vera Cruz, carrying 29 mostly Spanish passengers, mail, and general cargo.

Caught on the high seas, Panama was prepared for service as an auxiliary cruiser should war come, carrying a pair of 18-pounders (Hontroia 90mm guns, with 30 shells for each) as well as a Maxim gun on the bridge, two signal guns, 20 Remington rolling block rifles, and 10 Mauser bolt action rifles, all with ammunition, as well as a companion supply of bayonets and swords. Further, Panama was capable of 12 knots while Mangrove was closer to 8.5 at her overloaded condition, meaning even if she didn’t want to fight, the Spaniard could have simply outrun the armed tender.

After firing three shots across the bow, Mangrove was able to get the Panama to heave to for boarding at a range of 4,800 yards, with the intrepid Ensign Dayton rowed across for the task as the sole member of a VBSS team.

Everett had put in a requisition for a crate of rifles, along with a box of revolvers, with proper belts, cartridges, bayonets, etc., and it had been duly approved and forwarded, but the arms never made it to Mangrove. In the morning, she encountered Panama, the only weapons to be found among the crew included one revolver– the private property of the cadet midshipman– and the dress swords of the three officers. In fact, the crew who manned the cutter to put the boarding officer on the Panama (the Ensign Dayton) rowed over in their civilian dungarees as no Navy uniforms had arrived either.

Nonetheless, Mr. Dayton came aboard to the shrieks of female passengers, went to the bridge, advised the Spanish captain his elegant vessel was a prize, war having been declared between the United States and Spain, and he acquiesced.

Simple as that.

The NYT on the capture:

As Mangrove couldn’t spare the manpower, Indiana, which had closed on the scene, supplied 15 Marines and an Annapolis Cadet (Walter Maxwell Falconer, one of 13 Mids on the battleship) as prize crew while the tender escorted Panama to Key West.

Panama was later sold at public auction by the U.S. Marshal in New York on 20 June, with the U.S. Government being the high bidder at $41,000 (vessel only, her cargo garnered another $14,523.12). This was one of the highest prices realized from among the more than 50 captured Spanish vessels sold during the war, eclipsed only by the fine steamers Rita, which was bought by the Army for $120,000, the Guido, which went for $130,000, and the Pedro, which was sold to the U.S. Navy for $200,000. The Army went on to use her as a livestock transport.

After bringing Panama as a trophy to Key West, Mangrove returned to Cuban waters, serving as a dispatch vessel for Admiral Sampson and in general blockade duties.

Mangrove seen with torpedo boat USS Ericson 2024.01.0014

Mangrove helped seize the small Spanish schooner Oriente on 2 May, along with the tug USS Tecumseh and gunboat Vicksburg.

On 7 June, LCDR Everett was dispatched to the Asiatic Squadron to join Dewey’s staff and replaced on Mangrove by another Navy regular, LCDR Daniel Delehanty Vincent Stuart (USNA 1869). The tender-turned-gunboat also landed her loaned cadet midshipman (presumably with his celebrated pistol!), in exchange for Ensign Charles A. Brand (USNA 1890), who had been sent down from detached service on the survey schooner USC&GSS Endeavor.

On July 22, Mangrove captured her third prize, the Spanish sloop Anguedita, singlehandedly, and duly convoyed said vessel to Key West.

Ordered in early August to support the Cuban expedition aboard the schooners Dellie and Ellen F. Adams at Cayo Francés in Buena Vista Bay on the north-central coast of Cuba, Mangrove stood picket near Caibarien to spoil any attacks on the beachhead by a collection of Spanish gunboats known to be sheltering there. Chief of these was Hernand Cortés, commanded by LCDR (teniente de navío de 1.ª clase) Angel Izquierdo Pozo, and three small launches, Cauto, Viliente, and Intrepida, the latter armed with 1 pounders. The Spanish mosquito boat flotilla had previously sortied out and engaged U.S. blockaders twice before, on May 10th and 18th.

A fine Clydebank-built Pizarro-class gunboat (canonero), Hernan Cortes was a brand-new 300-tonner equipped with 57mm Nordenfelts and designed to intercept filibuster expeditions. Capable of 13 knots, the stiletto-hulled 155-foot patrol boat had a 50-man crew. All the above should have more than made her a match for a gently armed buoy tender.

Should have.

Spanish gunboat (canonero) Hernan Cortes, probably photographed early in 1896 while undergoing trials at the Builder’s Yard, Clydebank, Scotland. Note the two single Nordenfelt 75mm guns mounted fore and aft. These were replaced before 1898 by two smaller 57mm guns and two 7mm Maxim guns. NH 88600

On the morning of 14 August, some 3 miles east of Caibarien at approximately 10:55 a.m., Mangrove’s crew spotted a large Spanish gunboat and opened fire with her port-side 6-pounder gun, slowly gaining range. Cortes retaliated, and for the next 90 minutes, a long-range artillery duel continued, with Cortes largely stationary and the three smaller Spanish launches, armed with short-range 1-pounders, also returned fire as Mangrove alternated passing gun runs on her port and starboard sides.

Breaking contact around 12:30, the small Spanish launch Cauto soon approached with a white flag aloft and advised the garrison had just been informed by wire that the hostilities between Spain and America had ceased the day prior, leaving Mangrove with the distinction of firing the last war shots of the conflict. In all, the tender fired 103 rounds from her 6-pounders and three from her 1-pounder. According to most reports, at least four of the larger shells found themselves in the engine room of the Cortes, explaining the vessel’s stationary position for most of the engagement.

According to a dispatch published in the Army & Navy Journal, Mangrove bombarded the town as well, letting loose some 87 shots at the fort and village.

With that, Mangrove’s war service ended.

Similarly, the lighthouse tenders Armeria, Maple, and Mayflower were also taken into Naval service for the duration of the conflict, though none saw the combat and success that Mangrove did.

The closest was Mayflower, which, as USS Suwanee, was given a much bigger battery than Mangrove and provided gunfire support for Marines engaged in consolidating the American position at Guantanamo Bay in June 1898 and again for the Army troops advancing on Aguadores in July.

USLHT Mayflower in 1898 at Norfolk Navy Yard, complete with service insignia on her bow. Note she has twin 6-pounders fore and aft, as well as two 3″/50s.

The United States Navy auxiliary cruiser USS Suwanee (ex-United States Lighthouse Service lighthouse tender USLHT Mayflower) (center) underway off Siboney, Cuba. The troop transports USS St. Louis is at left, and the patrol yacht USS Vixen is at right. NH 85649

The most enduring change that came to the USLHS during the War of ’98  was the temporary militarization of 78 lighthouses for use as coast watching stations. This saw 92 miles of land telegraph and telephone lines laid, along with 43 miles of submarine cables, to establish round-the-clock contact with these often-remote locations. Further, each keeper was provided with a set of first-class binoculars, signal flags, and code books.

Mangrove was cited by the Navy Department for “Conspicuous Service” during the war, while her crew was authorized the Naval Campaign West Indies (Sampson) Medal in 1901 with “Mangrove” ribbon clasp.

They ultimately split the prize money for Panama in 1903 after lengthy legal efforts to successfully exclude the much larger crew of the battleship Indiana, with the Supreme Court noting, “The adventure of the Mangrove may not have been a brilliant event that will live in story, but it was sufficient to give its officers and crew the profit of the law.”

She was returned to the Lighthouse Service on 18 August 1898 and remained moored at Key West’s Man-of-War Harbor until 19 October 1898 to land her guns and military equipment. She was then sent to Mobile for drydocking and repairs– including replacing the port propeller plate whose edge had been shot off by one of Cortes’s guns at Caibarien, her only wartime damage.

Leaving Mobile on 15 December 1898 with a refreshed USLHS livery, she resumed her post serving in the 7th LH District.

Back to the Lighthouse Trade

One of Mangrove’s first post-war assignments was, somewhat appropriately, heading to Havana in March 1899 to relieve and reset all channel and harbor boys. She also planted buoys to mark the wreck of USS Maine.

She remained a busy beaver. For instance, the Annual Report of the Light-House Board of the United States to the Secretary of the Commerce Department details that, for FY1901, Mangrove cleaned and painted 79 buoys, worked 25 days at the depot, and steamed 8,722 nm, burning 1,038 tons of bituminous coal in the process.

She was also an angel on the sea and a savior to those in peril upon it, repeatedly.

In September 1900, Mangrove was ordered from Key West along with the Revenue Cutters Algonquin, Onondaga, and Winona to bring 25 tons of provisions and medical supplies across the Gulf to Galveston, which had been hit by the worst hurricane to ever make landfall in the U.S., claiming the lives of more than 10,000. The crews of the relief vessels pitched in where they could in the massive cleanup effort.

From 14 July 1906 to 25 April 1907, Mangrove was under overhaul and repair at the League Island Navy Yard.

In October 1909, Mangrove rendered assistance for several days to the U. S. Revenue Cutter Forward, stranded by a hurricane at Key West. She also rendered assistance the following June, to the steamer Lassell, of New York, aground on Carysfort Reef.

In January-February 1911, Mangrove was part of the joint naval task force, including the USRC Forward, the tug USS Massasoit (YT-15), and four destroyers, lining the 90 miles from Key West to Havana for the attempt by Canadian aviation pioneer John Alexander Douglas McCurdy to make the trip in his Curtiss flying machine. Keep in mind, this was only a bit over seven years after the Wright Brothers’ first flight.

J.A. McCurdy before his flight on February 7, 1911. Monroe County Library Collection.

The flight was unsuccessful, and the aviator had to be rescued from the Florida Straits by the nearest support ship, USS Terry (DD-25), just within sight of the Cuban coast.

The Navy crews from USS Terry recovered McCurdy’s plane after his failed attempt to fly from Key West to Havana on January 30, 1911. Gift of Senator Warren Henderson.

On 12 February 1912, our tender picked up the dismasted American schooner Otis about 2.5 miles from Rebecca Shoal light station, Florida, and towed the vessel to Key West. The same year saw Mangrove commended for hauling the British steamer Antaeus off French Reef, and assisting the stranded schooner Igo.

Mangrove spent much of 1913 in overhaul, with most of her officers and crew cross-decked to man the near-sister Lilac, which had just emerged from overhaul sans crew.

The same year, she picked up her sixth skipper, Capt. Ernest O. Tull. Tull entered the Lighthouse Service in 1889 in the Fifth district and served during the SpanAm War on Mayflower/Suwanee. In 1912, while first officer on the tender Orchid, Tull jumped into the water and rescued an unconscious member of the crew of that vessel, who was knocked overboard as the result of an accident to the derrick. He would become a staple of Mangrove’s history for the next 13 years.

On 7 February 1915, Mangrove would rescue the crew of the wrecked schooner William H. Yerkes, which was lost on the Frying Pan Shoals with a cargo of phosphate rock bound for Baltimore. The trusty tender brought the waterlogged crew to Wilmington the next day.

In January 1916, the tender came to the assistance of the submarine USS K-5 (SS-36), which had been out of communication with command. For this, the USLHS and Commerce Department received an official note of thanks from the Navy Department.

Showing how versatile her type was, Mangrove that year also helped move the 51×56 foot keeper’s dwelling of the Georgetown Light Station some 1.25 miles across Winyah Bay– while the keeper’s family remained inside.

War (again)

The Naval Appropriations Act of 29 August 1916 (39 Stat. L., 556, 602) authorized the USLHS to transfer to the Navy and/or War Department in time of emergency as directed by the President. The plan was for the War Department to take some tenders to supplement Army Coast Artillery Corps mine planters for the establishment of minefields outside U.S. ports, while the Navy would absorb others– as well as coastal stations, depots, and lighthouses– for use in patrol work.

Though a civilian agency of a neutral country, the USLHS had already tasted war from the Germans, courtesy of U-53 in October 1916, when the submarine torpedoed three vessels off Nantucket Island, and the Nantucket Shoals Light Vessel sheltered 115 shipwrecked men and 19 lifeboats for several days.

The United States declared war on the Kaiser on 6 April 1917 and just five days later, President Wilson signed Executive Order #2588 activating the provisions of the August 1916 Navy Act, including the transfer of USLHS installations, ships, and personnel to the Navy although the CNO soon made it clear that when it came to actual lighthouses, “that it would be preferable to take over as few as possible.”

Speaking of “as few as possible,” in the end, the War Department felt it didn’t need any lighthouse tenders and allowed the Navy to take over all 50 of the service’s vessels for better or worse.

As detailed by Theodore J. Panayotoff in the November 2011 Lighthouse Digest:

Upon transfer, all officers and crewmembers were inducted into the US Naval Reserve Force (USNRF) with the officers receiving commissions with the rank of LTJG or ENS. Counting the tenders, light stations, and lightships, there were 1,284 Lighthouse Service personnel transferred to the Navy Department, or about ÂĽ of the Lighthouse Service at the time.

The word went out via Western Union telegram in most cases during the week of 18 April.

This figure later grew to 1,132 LHS personnel, while 152 employees of the service that had not been transferred in turn resigned and joined the Army or Navy directly as volunteers.

On 19 April 1917, Mangrove, Ernest O. Tull commanding, assisted in floating the ship Nevisian.

Again, we fall back to Panayotoff on the role the tenders played in 1917-19 Navy operations:

The tender deck log holdings of the National Archives were reviewed to shed light on what these “military” duties may have been. An interesting discovery was that, based on the few cases where deck log holdings are listed for both the Naval vessel and the Lighthouse Service tender, dual logs were kept on board the vessels. Entries in the Department of Commerce Form 304, the Lighthouse Service deck logbook, were handwritten, and the Navy Department Bureau of Navigation logbook sheets were typewritten. The log entries were word-for-word identical. It is possible that the Lighthouse Service log served as a rough log, and the Navy Department log was the smooth log. The respective organizations retained their logs, signed by the Commanding Officer, USNRF, and Master, USLHS, respectively. Although not every entry of the available logs was read, it appears that the tender activities were all lighthouse-related.

As further explained by the USLHS Annual Report in 1923, looking back on the Great War:

“The naval representatives on an interdepartmental board stated: “The service being performed by these tenders in the various naval districts is extremely valuable. In some cases, they are the main reliance of the district commandants for seagoing vessels; in some instances, the work being performed by these tenders is of a nature for which the Navy has no suitable vessels, for example, the laying of the defensive submarine nets.”

While Mangrove survived her second war without a scratch, not all were so lucky. The Diamond Shoal Light Vessel (LV-71), off Cape Hatteras, was sunk on 6 August 1918 by U-140 after the submarine discovered the light ship was broadcasting warnings of her presence. All 12 of her crew, however, managed to escape by launch as the sub’s deck guns were smashing about their light ship.

All USLHS men who served with the fleet were awarded Victory medals by the Navy Department. In July 1919, all vessels and personnel were retroceded to the Department of Commerce.

Mangrove in the last days of the USLHS

Mangrove, with Tull still commanding, on 20 October 1920, rendered assistance in extinguishing a fire on the gasoline launch of the USS Dixie while in Charleston Harbor.

Our tender affected her biggest rescue in the case of the Clyde Line steamship SS Lenape in October, when the 7,000-ton liner went aground on the Nassau Bar, transferring 247 passengers to another one of the Line’s vessels.

As detailed in the 1922 Lighthouse Service Bulletin:

In 1922, Mangrove was shifted up the Eastern Seaboard and assigned to the 6th Lighthouse District, based out of Charleston, South Carolina, where she operated for the rest of her government career.

On 6 February 1923, Mangrove went to assist the crew of a stranded oyster barge and towed them to a safe anchorage in the Ashepoo River.

While in the thick winter fog along the Savannah River on 3 January 1924, Mangrove came to the assistance of the steamship City of Savannah, which was unable to turn around in the narrow channel.

Capt. Tull medically retired from the USLHS in early 1926, leaving Mangrove after 13 years as Master. A veteran of both the SpanAm War and the Great War, he passed on 29 July 1926 in Charleston, having completed 37 years of service.

(Yet another) War

By the time Mangrove’s third war came around, the 150-year-old USLHS no longer existed, its assets and 5,800 employees having been absorbed by the USCG in July 1939, including all 64 of its assorted tenders. The service’s 1,195 regular tender and lightship crewmen and officers were given a three-option choice: accepting a rank/rate in the uniformed service, retiring if they had enough time in the pension system, or moving on to other endeavors.

In turn, Executive Order 8929 of 1 November 1941 transferred the entire Coast Guard to the Navy for the coming “Big Show” against the Axis. By this time, the 44-year-old Mangrove had picked up a pennant number  (WAGL-232), gray paint, and guns. By the end of the war, she carried not only a pair of 20mm Oerlikons and depth charges but also a SO-1 type surface search radar set.

Her fellow SpanAm and Great War veteran near-sister, Mayflower, likewise, served as USCGC Hydrangea (WAGL-236) during WWII to avoid being confused with the Navy’s USS Mayflower.

Mangrove continued naval service as a buoy tender until 1 January 1946, when she was returned to the Treasury Department. Her service during WWII was uneventful, and she decommissioned on 22 August 1946.

Unneeded in a Coast Guard that had 39 brand-new 180-foot Balsam-class seagoing buoy tenders on hand, ex-Mangrove was sold for scrap in March 1947.

Epilogue

A few relics of our subject endure.

The Key West Lighthouse & Keeper’s Quarters Collection holds both Mangrove’s SpanAm War streamer pennant and a Quarantine Flag flown from the tender.

Her 1897-marked bell has also been spotted in circulation.

Of Mangrove’s Caibarien nemesis, Hernan CortĂ©s survived the war and was repaired enough to return home to Spain in the Spring of 1899 in a sad convoy of survivors of the conflict, including her sister, Vasco Nunez de Balboa, the cruiser Magallanes y MarquĂ©s de la Ensenada, the auxiliary cruisers Patriota and Rapido, torpedo boats (cañoneros-torpederos) Nueva España, MartĂ­n Alonso PinzĂłn, MarquĂ©s de la Ensenada, and Vicente Yáñez PinzĂłn. The convoy assembled at Fort de France (Martinique) and sailed on 7 March, arriving at Cadiz on 1 April via El Hierro, a slow running 3,900 miles, with several ships being towed. Shifted to Morocco, Cortes proved especially handy in capturing smugglers and fighting the Rif, remaining in further Spanish service until 1924.

Mangrove’s first skipper, the venerable Capt. Cosgrove, in charge of the lightning response to the stricken Maine and served as Mate during the ’98 War, resigned from the USLHS in 1906, capping a 33-year career. He passed in Key West just six years later, aged 78. Buried on the Key, his home remains and is a noted historic building.

Of Mangrove’s two Navy skippers in the SpanAm War, LCDR Everett, who commanded her during the capture of the steamer Panama, retired from the service as a rear admiral in 1906, completing 43 years in uniform, including his time as a midshipman. He passed away in 1912, aged 65. LCDR Daniel Stuart, who inadvertently ordered the last shots of the war, also retired as a light admiral. Stuart’s decorations, including an exceedingly rare “Mangrove” marked Sampson medal, recently sold at auction for $8,000.

What of the young ensign who confidently took command of Panama in 1898, armed only with a borrowed personal revolver and a dress sword? VADM John Havens Dayton (USNA 1890) retired from the Navy after being an early skipper of the dreadnought USS Arizona, earning a Navy Cross as captain of the battleship USS Michigan in the Great War, and commanding the European Squadron in the 1920s. He passed in 1953, aged 84, and is buried in the cemetery at Annapolis– as you would expect.

Thanks for reading!

Meminisse est ad Vivificandum – To Remember is to Keep Alive

***

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ROK OPV for PI, Now with OTO, Ok? OK!

The Philippine Navy holds an arrival ceremony on May 8, 2026, for Offshore Patrol Vessel 2, the future BRP Rajah Lakandula, at Naval Operating Base-Subic. The event is led by PN Flag Officer in Command Vice Admiral Jose Ma Ambrosio Ezpeleta with Philippine Military Academy Superintendent Vice Admiral Caesar Bernard Valencia. Photo courtesy: Philippine Navy

The Philippine Navy’s newest offshore patrol vessel, the future BRP Rajah Lakandula (PS-21), has arrived in the country from Hyundai in Korea for a pending commissioning, just 14 weeks after her sister.

The 2,400-ton/310-foot Rajah Sulayman-class OPV is a heavy hitter for her size, carrying a 76mm/62 cal OTO Super Rapid forward, two 30mm RWS mounts, and two stabilized .50 cals backed up by a Leonardo 2D air/surface surveillance radar, an EW suite including IR and RF decoys, a heli/UAV-deck and hangar, and a mission bay that supports a towed array sonar.

Philippine Navy’s BRP Rajah Sulayman (PS20), with the BRP Jose Rizal (FF150), during a pass ex evolution on January 17, 2026.

BRP Rajah Sulayman OPV (PS-20)

It would be nice to see the U.S. Navy and USCG move back to a 76mm (if not 5-inch) gun from the current 57mm Mk 3/Mk 110 Bofors mount.

And maybe some ASW stuff.

Just saying.

We used to be a proper country.

Future Fast Frigate…Follies?

Whelp, looks like the FFX has been funded, to a degree. You know, the (almost) missile-less gray hull 418-foot National Security Cutter.

Sure, it is not perfect, but it is a better plan than not having a frigate at all, which is what we are doing now. Just wish they at least had 16 VLS cells and some torpedo tubes along with the sensors to use them, that’s all I’m saying…

Via DoW:

Huntington Ingalls Industries, Ingalls Shipbuilding, Pascagoula, Mississippi, is being awarded a $282,885,933 cost-plus-award-fee contract for FF(X) class frigate lead yard support. Work will be performed in Pascagoula, Mississippi, and is expected to be completed by April 2028. Fiscal 2026 shipbuilding and conversion (Navy) funds in the amount of $59,092,397 (73%); and fiscal 2026 research, development, test and evaluation (Navy) funds in the amount of $21,500,339 (27%), will be obligated at time of award and will not expire at the end of the current fiscal year. This contract was not competitively procured in accordance with 10 U.S. Code 3204(a)(2) (unusual and compelling urgency). Naval Sea Systems Command, Washington, D.C., is the contracting activity (N00024-26-C-2306).

Of course, there is also a push to perhaps buy COTS surface escorts from Japan and/or South Korea, which brings us to the launch this week of the ROK Navy’s fourth FFX Batch-III Frigate, ROKS Jeju (FFG-832).

Jeju is a 3,600-ton-class next-generation frigate, with a full-load displacement of approximately 4,300 tons. The ship is 423 feet long and can reach a maximum speed of 30 knots on a CODEOG plant. She will carry a 5-inch gun (YES!), 16-cell VLS, two triple ASW tubes, 8 TLAM/SLAM-ER equivalents, and a CIWS.

I mean, folks love Hyundai, Kia, LG, and Samsung over here…

Of Blockades and Commerce Raiders, 2026 Edition

So can we just talk for a minute, not of politics, but of naval tactics at work in the Persian Gulf, Gulf of Oman, and Arabian?

As any fan of the blog knows, we lean pretty hard into the stories of the old steam/diesel navies from 1833 to 1954, which in turn is heavily punctuated by surface/commerce raiders and naval quarantine/blockade.

With that foundation under us, it has become super interesting that the Navy has delivered its first disabling gunfire against a large surface vessel since 1988, with several 5″/62 rounds delivered into the engine room of the M/V Touska by the USS Spruance (DDG 111) while operating as part of the Abraham Lincoln Carrier Strike Group.

It was certainly the old “cruiser rules” with Sprunace firing five warning shots and opting to use nine BLP (Blind Loaded Projectile, the blue, steel projectile loaded with inert contents) to wreck Touska’s engine room after several broadcasted warnings and a six-hour pursuit.

Dead in the water, Touska was soon boarded in a night operation by Marines from the 31st MEU carried via helicopter from USS Tripoli (LHA 7). Some real deal VBSS stuff on a 73,000-ton/968-foot Panamax-sized container ship– not your more typical seizure of an unflagged dhow that the Navy has typically done in the past several decades.

Such an incident shows the value of a 5-inch gun aboard a grey hull for just such a moment– and underlines why the Navy’s next frigates (and the Coast Guard’s larger cutters) need such a weapon installed. Bofors 57s aren’t going to get it.

Either way, you know Spruance’s already colorful forward mount will receive some extra paint on its gun house.

U.S. Navy Arleigh Burke-class guided-missile destroyer USS Spruance (DDG 111) approaches fleet replenishment oiler USNS Henry J. Kaiser (T-AO-187) before a replenishment-at-sea Jan. 17, 2026. (U.S. Navy photo by Mass Communication Specialist 2nd Class Jordan Steis)

Then came the interception of the Iranian-chartered “Botswanan-flagged” (officially stateless) crude carrier M/T Tifani— 156,967 gross tons of shipping– on the 21st in the Bay of Bengal.

Of interest, she was seized by a converted tanker design, with an Expeditionary Sea Base, possibly the Lewis B. Puller-class USS Miguel Keith (ESB 5), seen just off her bow in the photos released by CENTCOM and DoW.

There is no way you can look at that as other than a direct call back to the auxiliary cruisers of the Russo-Japanese War, WWI, and WWII, which typically saw gently converted mail steamers and ocean liners modified with a few guns, some paint, and a military crew, then sent out to halt enemy blockade runners and similar auxiliary cruisers flying the flags of the other guys.

On 22 April, CENTCOM said that it had intercepted a total of 29 ships as part of the now nine-day-old blockade, including five Iranian-flagged/contracted/controlled tankers (Diona, Sevin, Dorena, Derya, and Deep Sea).

To wit, the IRCG has also said they have bagged a couple of ships of their own.

Sal catches us up on that.

In Coast Guard News…

In honor of 4/20 (haha), this seemed appropriate.

Just catching folks up on the operations of the country’s most unsung maritime force.

How about this cutter task group steaming in the Florida Straits, 23 March 2026. They include the 1960s-vintage 210-foot Reliance class cutters Vigorous (WMEC 627), left, and Resolute (WMEC 620), right, with the center being held by two much newer 154-foot Sentinel (Webber) class FRCs Raymond Evans (WPC 1110), center-forward, and William Flores (WPC 1103), center-rear.

It is a decent little OPV SAG, with 200~ assorted Coasties embarked and spots for two MH-65 Dolphin helicopters (and/or assorted UAVs), four RIBs (two 26-foot OTH-IVs and two 19-footers), making it capable of some serious littoral interdiction.

If things get kinetic, they have four (two stabilized Mod 2 and two older Mod 0) Mk 38 25mm mounts and 16 crew-served .50-cals to fall back on, plus well-stocked small arms lockers for their boarding teams.

Of note, Vigorous, seen above, just returned to her home port in Virginia Beach last week following a 26-day patrol.

Busy Tampa

Speaking of returning from patrol, the 270-foot Famous (Bear) class cutter USCGC Tampa (WMEC 902) just offloaded “enough cocaine to kill more than 1.4 million Americans” in Miami after two interdictions in international waters of the Eastern Pacific Ocean through Operation Pacific Viper on a 74-day patrol.

Note that she is one of the last cutters with a Mk 75 76mm OTO. Her sisters are getting them replaced with a Mk 38 Mod 2 25mm (!) during refits

Typical of such patrols, Tampa had a HITRON helicopter detachment aboard, who surgically riddled several go-fast outboards with .50 cal rounds from afar.

They brought back the engine covers for trophies:

Coast Guard Cutter Tampa’s (WMEC 902) crew poses for a group photo during a drug offload at U.S. Coast Guard Base Miami Beach, Florida, April 16, 2026. Tampa’s crew offloaded nearly $28.7 million in illicit narcotics interdicted in international waters of the Eastern Pacific Ocean. (U.S. Coast Guard photo by Petty Officer 3rd Class Reese Hindmarsh)

Bertholf returns after 80 days

U.S. Coast Guard Cutter Bertholf (WMSL 750) departs the San Francisco Bay on Jan. 21, 2026. Bertholf departed for a deployment to the Eastern Pacific Ocean. (U.S. Coast Guard Courtesy photo) 260121-G-G0200-1001

Likewise, the class-leading 418-foot Legend-class USCGC Bertholf (WMSL 750) just returned to her Alameda homeport after an 80-day counter-narcotics deployment to the Eastern Pacific.

Bertholf departed Alameda on Jan. 21 to support Operation Southern Spear in the Caribbean, but prior to transiting the Panama Canal, the cutter was retasked to remain in the Pacific theater, shifting focus to counter drug trafficking and transnational criminal threats on the high seas in support of Operation Pacific Viper.

Bertholf traveled nearly 20,000 nautical miles during the deployment, crossing the equator multiple times while patrolling maritime smuggling routes from Central and South America. The cutter conducted 24 approaches or boardings of suspected drug trafficking vessels and responded to two search and rescue cases, including a vessel fire near Costa Rica.

Bertholf’s crew conducted more than 180 flight operations with helicopter aircrews from Air Station San Francisco, Air Station Ventura, and Air Station San Diego, refining proficiency in shipboard landings, in-flight refueling, and vertical replenishment. The crew completed more than 120 hours of small boat training, strengthening the capabilities of law enforcement teams and cutter boat pursuit crews. Additionally, Bertholf executed two live-fire gunnery exercises, employing minor caliber weapons as well as major weapon systems including the 57 mm and the Phalanx Close-In Weapons System.

In other news, the service just announced it intends to homeport the first two (of up to 11) new Arctic Security Cutters in Alaska, a change from basing polar vessels in Seattle.

Green Knights in the Arabian Sea

Via CENTCOM comes these amazing images of VMFA-121 F-35B night ops from the Arabian Sea aboard an LHA serving in a “Lightning Carrier” sea control/denial role, something that would no doubt make the ghost of Elmo Zumwalt very happy.

Official caption: “An F-35B stealth fighter jet is prepared for flight aboard USS Tripoli (LHA 7) as the amphibious assault ship sails in the Arabian Sea. Tripoli and its 3,500 Sailors and embarked Marines are executing the mission to blockade ships entering and departing Iranian ports. The blockade is being enforced impartially against vessels of all nations.”

The “Green Knights” of Iwakuni-based Marine All Weather Fighter Attack Squadron (VMFA) 121 trace their lineage back to 1941 and were charter members of the Cactus Air Force during the Guadalcanal campaign, then went on to produce 14 aces– more than any other Marine squadron during WWII– downing 208 Japanese aircraft in the process.

They went on to fight in Korea (flying Skyraiders), Vietnam (Skyhawks then Intruders), became the first Marine F-18D night attack squadron in 1989 once the A-6 was retired, logged over 2,000 combat sorties during GWOT, and have been riding the Lightning since 2012.

Their motto is “Have Gun Will Travel,” which tracks.

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