Category Archives: submarines

Hunley’s ‘Other Submarine’ Found (?)

Known interchangeably as the Pioneer II or American Diver, a consortium of businessmen and engineers composed of Horace Lawson Hunley, James McClintock, and Baxter Watson constructed a small human-powered submersible in Mobile Bay during the Civil War on their way to producing the final warship (Hunley) which is much better known.

Built in late 1862, the 36-foot vessel was manned by a five-person crew but foundered off Fort Morgan in a sudden squall in February 1863 and was never recovered, leaving Hunley and company to try again.

Lost to time– and long presumed to be buried under tons of mud in the shifting sands of the Bay— a group now thinks they may have found it, just sitting out in the open.

Depths of History and Chaos Divers, in association with historian Shawn Holland– who has been chasing Pioneer II/American Diver as her own white whale for the past 30 years– has even released some images.

While it looks like an old nav buoy to me– and the Bay is surely full of such items after repeated hurricanes over the past few years– the Alabama Historical Commission is apparently getting involved to investigate further.

Update: 

It turned out to be a (surprise surprise) 19th-century bell buoy, which is neat, but not Civil War submarine neat.

Exercise Cold Response (with a decided lack of naval air)

Built around the recently completed Queen Elizabeth-class Royal Navy aircraft carrier HMS Prince of Wales (R09), currently serving as a NATO command ship, some 25 ships from 11 nations are assembled in the Arctic for Exercise Cold Response 2022.

“The purpose of the Cold Response exercises is to train a rapid military reinforcement of Norway under challenging climate conditions and in a so-called NATO Article 5 scenario.”

Besides HMSPoW, the Royal Navy has 900 Royal Marines ashore in central Norway and embarked on HMS Albion and RFA Mounts Bay and is escorted by the Type 45 destroyer HMS Defender, Type 23 frigate HMS Northumberland, and minehunter HMS Grimsby. Italy’s aging “Harrier carrier” ITS Giuseppe Garibaldi (C 551) is present as is France’s LPH Dixmude and Holland’s LSD Hr.Ms. Rotterdam, the latter escorted by the frigate Hr.Ms. De Severn Provincien. Danish ships include the frigate HDMS Peter Willemoes (F 362) and the survey ship Vædderen from 1. Eskadre. The Germans have sent the Frankenthal-class minehunter FGS Bad Bevensen (M1063) and the corvette Erfurt.

The U.S. is there with the forward-based (Rota-homeported) advanced Flight II Burke USS Roosevelt (DDG-80) while the command ship USS Mount Whitney and the old-school early Burke USS The Sullivans (DDG-66) have been mentioned in passing.

Operating with the force are RAF F-35Bs from 617 Sqn and 207 Sqn and Poseidon MRAs, all from shore, along with Eurofighters, USAF assets, Norwegian and Danish F-16s, and others. There are surely some Royal Norwegian Air Force (Luftforsvaret) P-3C/N Orions from Andøya’s No. 333 squadron making an appearance as well.

What hasn’t been seen is embarked naval fixed-wing assets, despite having two flattops underway. 

The 65,000-ton Prince of Wales, sans her planned F-35s. In fact, it looks like her deck is completely bare

Garibaldi is the Amphibious Task Force Commander Landing Force for the exercise but doesn’t seem to have an air group embarked. It would be nice to see the Italian Navy’s AV-8Bs still flexing.

There were some Jump Jets on hand, though as 10 USMC Harrier IIs of VMA-223 arrived at Bodø earlier this month alongside 10 ten F/A-18C/D Hornets from VMFA-312. 
 

A U.S. Marine Corps AV-8B Harrier II assigned to Marine Attack Squadron 223, 2nd Marine Aircraft Wing, taxis on the runway at Bodø Air Station, Norway, March 3, 2022. Exercise Cold Response ’22 is a biennial Norwegian national readiness and defense exercise that takes place across Norway, with participation from each of its military services, as well as from 26 additional North Atlantic Treaty Organization (NATO) allied nations and regional partners. (U.S. Marine Corps photo by Cpl. Adam Henke)

Other Marine aircraft in Norway for CR 22 are KC-130J Hercules, MV-22B Ospreys of VMA-261, AH-1Z Vipers and UH-1Y Venoms of HMLA-269; plus CH-53E Super Stallions from HMH-366.

Throughout the month, in total, about 50 naval vessels are participating in the exercise, which brings together 30,000 soldiers and support personnel from 27 countries – on land, at sea, and in the air.

It’s That Time of Year Again! ICEEX 2022 Is Here

ICEEX 2022 has begun in the Arctic Ocean on Friday, 4 March after the building of Ice Camp Queenfish and the arrival of two U.S. Navy fast-attack submarines, the aging (awarded in 1982!) Cold Warrior that is the Los Angeles-class fast-attack submarine USS Pasadena (SSN 752) and the much more modern Virginia-class attack submarine USS Illinois (SSN 786).

Welcome to the Order of the Blue Nose!

BEAUFORT SEA, Arctic Circle (March 5, 2022) – Los Angeles-class fast-attack submarine USS Pasadena (SSN 752) surfaces in the Beaufort Sea, kicking off Ice Exercise (ICEX) 2022. ICEX 2022 is a three-week exercise that allows the Navy to assess its operational readiness in the Arctic, increase experience in the region, advance understanding of the Arctic environment, and continue to develop relationships with other services, allies, and partner organizations. (U.S. Navy photo by Mike Demello/Released)

BEAUFORT SEA, Arctic Circle – Virginia-class attack submarine USS Illinois (SSN 786) surfaces in the Beaufort Sea March 5, 2022, kicking off Ice Exercise (ICEX) 2022. ICEX 2022 is a three-week exercise that allows the Navy to assess its operational readiness in the Arctic, increase experience in the region, advance understanding of the Arctic environment, and continue to develop relationships with other services, allies, and partner organizations. (U.S. Navy photo 220305-N-ON977-1158 by Mike Demello/Released)

More here.

Warship Wednesday, March 2, 2022: Burnt Java

Here at LSOZI, we take off every Wednesday for a look at the old steam/diesel navies of the 1833-1954 period and will profile 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

Warship Wednesday, March 2, 2022: Burnt Java

NIMH photo

Here we see the Koninklijke Marine naval docks at Soerabaja (Surabaya), on the island of Java in the Dutch East Indies. The photo was taken 80 years ago today, 2 March 1942, from the coal jetty towards the West. With the Japanese fast approaching, the Dutch started the destruction of the yard at 11:30 am and you can make out the 1,500-ton dry dock sunk along with the patrol boats P19 and P20. The new 2,500-ton drydock is listing to the right with a cloud of smoke from the Perak oil tanks in the background.

While the scuttling of the Vichy French fleet at Toulon in 1942, and the self-destruction of the Royal Danish Navy at its docks in Copenhagen in 1943 to keep them out of German hands are well-remembered and often spoken about in maritime lore, the Dutch wrecking crew on Java at Soerabaja and Tjilatjap gets little more than a footnote.

Dominated by the Dutch for some 125 years before the Japanese effort to uproot them, Java was one of the centerpieces of the Indonesian archipelago in 1942 and a principal base for the colonial forces. While Borneo, Sumatra, and other islands may have had more resources– including natural rubber and pumping 20 million barrels a year of oil– Java was the strategic lynchpin. Defended by the (nominally) 85,000-man Royal Netherlands East Indies Army (KNIL) along with their own air force, the ML-KNIL, it was the Dutch Navy and its shore-based long-range patrol craft of the MLD naval air service that was the colony’s first line of defense.

Japanese invasion map of the Netherlands East Indies cropped to show the landings and attack on Java. Note the location of the Dutch naval bases and how far the island is from Darwin. (OSS Collection Stanford University)

However, with the ML-KNIL/MLD’s aircraft swatted from the sky, and the Dutch navy’s largest units– the cruisers Hr.Ms. De Ruyter and Java— sunk at the Battle of the Java Sea on the night of 28 February along with following on Battle of Sunda Strait on 1 March that saw two Allied cruisers sent to the bottom, Java was wide open, and future war criminal Gen. Hitoshi Imamura’s 16th Army started landing on the island at three points directly after.

While Dutch Lt. Gen. Hein Ter Poorten’s force of three KNIL divisions and a mixed brigade worth of British/Australian/American reinforcements would seem on paper to be an even match for Imamura’s troops, the Japanese had the momentum from the start and by 8 March, the Dutch radio station at Ciumbuluit signed off with “Wij sluiten nu. Vaarwel tot betere tijden. Leve de Koningin!” (We are closing now. Farewell till better times. Long live the Queen!)

This effectively ended the short-lived ABDACOM command, severed the Malay-Timor barrier protecting Australia, and was the near-height of the Japanese success in the South Pacific. In March 1942, the Japanese would mount no less than 17 air raids on Western and Northern Australia.

Unescapable

The noose around Java was tight and several vessels that tried to break out failed.

The Japanese cruisers Takao and Atago found the old destroyer USS Pillsbury (DD-227) near nightfall on 2 March and sent her to the bottom with all hands.

At roughly the same time, the Japanese heavy cruiser Maya, accompanied by destroyers Arashi and Nowaki, found the British destroyer HMS Stronghold (H50) trying to escape from Tjilatjap to Australia and sank her, recovering 50 survivors.

The Australian Grimsby-class sloop HMAS Yarra (U77) was escorting a convoy of three British ships (the depot ship HMS Anking, the British tanker Francol, and the motor minesweeper HMS MMS 51) and survivors from the Dutch ship Parigi, from the fighting in Java to Fremantle when they were attacked on 4 March by three Japanese heavy cruisers– Atago, Takao and Maya, each armed with ten 8-inch guns– and two destroyers. The 1,080-ton sloop gave her last full measure but was unable to stop the massacre of the convoy and the Japanese were especially brutal, with reports of close-range shelling by the two Japanese destroyers, witnessed by 34 survivors on two rafts. The blockade-running Dutch freighter Tawali, rescued 57 officers and men from Anking that night, while the escaping Dutch steamer Tjimanjoek found 14 further survivors of the convoy on 7 March, and two days later 13 of the sloop’s ratings were picked up by the Dutch submarine K XI (a vessel that would go on to serve with the British in the Indian Ocean through 1945).

Persian Gulf, August 1941. Aerial port side view of the sloop HMAS Yarra II. She would be sunk along with her three-ship convoy while trying to escape Java on 4 March 1942. (AWM C236282)

Survivors

To be sure, the last large Dutch surface ship in the Pacific, the cruiser Hr.Ms. Tromp had escaped destruction and would serve alongside the Allies for the rest of the war, while her sister Jacob van Heemskerck, arriving too late to be sunk in the Java Sea, would duplicate her efforts.

Likewise, several Dutch submarines had managed to evade the Japanese dragnet and make for Australia, where they would continue their war.

Others, under an order of the Dutch navy commander on Java, RADM (acting) Pieter Koenraad, were ordered to attempt to escape after receiving the code KPX. (Koenraad and his staff embarked on the submarine Hr.Ms. K-XII, which made it to Australia safely, and from there he left for England, returning to Java in 1945 with the Free Dutch forces)

The 500-ton net-tender/minesweeper Hr.Ms. Abraham Crijnssen, capable of just 15 knots and laughably armed, famously decided to try for Australia camouflaged as a small island, leaving Java on 6 March with a volunteer crew and making it to safety on 20 March.

Personnel covered the ship in foliage and painted the hull to resemble rocks. The ship remained close to shore during the day and only sailed after sunset, sometimes traveling less than 50 miles a night. “Mijnenveger Hr.Ms. Abraham Crijnssen (1937-1961) gecamoufleerd in een baai (Soembawa) in Indische wateren in 1942.” (NIMH 2158_000014 and 2158_028298)

The scuttling itself

This left all the vessels too broken, under-armed, or small to break through the Japanese blockade and make it 1,200 miles across dangerous waters to Australia. Not wanting them to fall into the hands of the Japanese, the Dutch, and their Allies took the wrecking ball to over 120 vessels on Java at Soerabaja, Tanjon Priok, at Tjilatjap on 2 March.

The largest of these under Dutch naval control, Hr.Ms. Koning der Nederlanden was a 70-year-old 5,300-ton ramtorenschip ironclad that had been disarmed and turned into a barracks ship in 1920. She hadn’t left the harbor in generations under her own steam, so this was a no-brainer.

The Hr.Ms. Koning der Nederlanden originally mounted a pair of Armstrong 11-inch rifled muzzle-loading guns in each of her two turrets and was protected by 8 inches of iron plate. Used as an accommodation ship for the flotilla of Dutch submarines in the islands, she was set on fire and sunk at Soerabaja on March 2. (Photo NIMH)

Other large ships sent to the bottom were a group of Allied merchantmen trapped in the harbors including three 7,000-9,000-ton Dutch Java-China-Japan Lijn line cargo ships– Tjikandi, Tjikarang, and Toendjoek— scuttled as blockships. In all, 39 merchantmen were torched, mostly small Dutch coasters and empty tankers, but including three British Malay vessels (SS Giang Seng, Sisunthon Nawa, and Taiyuan) that had escaped Singapore, the 1,600-ton Canadian freighter Shinyu, and the small Norwegian tramps, Proteus and Tunni.

The two most potent Dutch combat vessels left in Java, the Admiralen-class destroyers (torpedobootjagers) Hr.Ms. Banckert and Witte de With did not survive the day. These 1,650-ton Yarrow-designed boats were built in the late 1920s and, capable of 36 knots, carried four 4.7-inch guns and a half-dozen torpedo tubes. Both had been severely mauled in surface actions with the Japanese and were unable to evacuate to Australia. The Dutch built eight of these destroyers and lost all eight in combat with the Germans and Japanese within 22 months of Holland entering the war.

Hr.Ms. Banckert seen in better days (Photo NIMH)

Hr.Ms. Witte de With (Photo NIMH)

Marine docks in Soerabaja. The photo was taken from the warehouse towards the East. Start of the destruction 11:30 am. The 3,000-ton dry dock with the destroyer Hr.Ms. Banckert is seen sinking. The dock had been torpedoed by Hr.Ms. K XVII before the submarine was able to submerge and make for Freemantle with the port’s commanding admiral aboard. On the right is the 227-ton tug/coastal minelayer Hr.Ms. Soemenep.

Speaking of destroyers, the old four-piper Clemson-class destroyer USS Stewart (DD-224) had been severely damaged at Badung Strait, only making it to Soerabaja with her engine room still operating while submerged. Written off, her crew was evacuated to Australia on 22 February and the ship, stricken from the Navy List, was left to the Dutch to scuttle.

USS Stewart (DD-224) steaming at high speed, circa the 1920s or 1930s. U.S. Naval History and Heritage Command Photograph. NH 61898

The Dutch, who had a huge submarine fleet in the region, had three small “K” (for Koloniën or Colonial) subs scuttled at Soerabaja, the 583-ton circa 1923 KVII-class Hr.Ms. K X, the 828-ton circa 1926 K XI-class Hr.Ms. K XIII, and the 1,045-ton circa 1934 K XIV-class Hr.Ms. K VIII.

Colonial Submarine Hr.Ms. K X seen here upon arrival at Surabaya. In the background both the Java class light cruisers (Java and Sumatra) and on the far right a Wolf-class destroyer. 25 December 1924. Fast forward over 17 years later and the little sub was in repair at the same port and unable to get underway for Australia

Onderzeeboot Hr.Ms. K X

Onderzeeboot Hr.Ms. K VIII in drydock

De onderzeeboot Hr.Ms. K XIII op zee

The Hr.Ms. Rigel, a 1,600-ton unarmed local government-owned (gouvernementsvaartuig) yacht used by the Dutch governor-general that had been converted to a minelayer, was too fine to let the Japanese have but too slow to make run the blockade. She ended her career on 2 March as a blockship at Tanjong Priok.

Hr.Ms. Rigel in her prewar livery (Photo NIMH)

When referencing mine craft, the ten Djember (DEFG)-class auxiliary mijnenvegers (minesweepers), small 100-foot vessels of just 175 tons constructed specifically for work in the islands, were all either scuttled or left wrecked on the builders’ ways in Java. Similarly, the five even smaller 74-ton Ardjoeno-class auxiliary minesweepers, the twin 150-ton Alor and Aroe, and the twin 145-ton Ceram and Cheribon, were in the same lot, with the Dutch sinking these as well.

Minesweepers of the 3rd Division, auxiliary minesweepers of the Alor-class in action in the Dutch East Indies in 1941. These were all sunk by their crews on 2 March 1942. Small vessels like these had no hope of storing enough fuel to make it 1,200 miles to Allied lines. (Photo NIMH)

The Alors were built as regional police vessels (politiekruisers) for use in coast guard roles and were outfitted as sweepers in 1939 under naval command. (Photo NIMH)

One great unrealized hope that could have spoiled the Japanese landings was the 17 TM-4 class of motor torpedo boats. Begun at Navy Yard Soerabaja in 1940, they were small and quick vessels, just 63 feet long with a 5-foot draft, they could make 36 knots.

TM-4 klasse motortorpedoboot Hr.Ms. TM 8 portside. Note her two stern torpedo tubes and two forward light machine guns.

Motortorpedoboot Hr.Ms. TM 5 Hr.Ms. TM 8 en Hr.Ms. TM 6. Note the exhaust pipes for their three gasoline aviation engines, salvaged from old seaplanes

Motortorpedoboot Hr.Ms. TM 5 op hoge vaart met op achtergrond Hr.Ms. TM 8

TM8 getting on the plane

As the islands were cut off from Europe due to the German occupation of their homeland, much use of surplus parts was made. This included Lorraine Dietrich gasoline engines from condemned 1920s Dornier Wal and Fokker T-4 aircraft as well as Great War-vintage 17.7-inch torpedo tubes from scrapped Roofdier-class destroyers and Z-class torpedo boats.

Their only other armament was twin Lewis guns. “Motortorpedoboot Hr.Ms. TM 5 (1940-1942), Hr.Ms. TM 8 (1940-1942) en Hr.Ms. TM 6 (1940-1942) afgemeerd.”

Just 12 TM-4s were completed by March 1942, and they were all scuttled, while the other half-dozen were left unfinished onshore.

In the same vein as the TM-4s, the Dutch had planned to build at least 16 130-ton B-1-class subchasers at three different yards around the colony. These 150-foot motor launches, armed with a 3-inch popgun, some AAA pieces, and 20-depth charges, would have gone a long way towards providing the Dutch some decent coastal ASW. However, none were completed in March 1942 and the work done by the time of the fall of Java was disrupted as much as possible.

As a stopgap before the B-1s were complete, the Dutch had ordered eight small wooden-hulled mosquito boats from Higgins in New Orleans.

The Dutch Higgins boats substituted 16 depth charges for the more familiar torpedo tubes used on these vessels’ follow-on brothers as the Navy’s PT boats. They also had a 20mm gun and four .50 cals, in twin mounts with plexiglass hoods. Classed as OJR (Onderzeebootjager= Submarine hunter), the first six arrived as deck cargo in December 1941 and February 1942 but saw little service.

Onderzeebootjager Hr.Ms. OJR 4 (1941-1942) wordt te New Orleans a/b van het ms Poelau Tello gehesen voor verscheping naar Ned. Indië

Two had been lost in gasoline explosions and the Dutch scuttled the remaining four in Java (OJR-1, OJR-4, OJR-5, and OJR-6) on 2 March.

Incidentally, the two undelivered Higgins boats (H-7 and H-8) were delivered after the fall of the Dutch East Indies to the Dutch West Indies where they patrolled around Curacao.

Onderzeebootjager Hr.Ms. H 8 (1942-1946) op weg van New Orleans naar Curaçao

The local Dutch government had several small patrouillevaartuigen gunboats at their disposal outside of naval control, dubbed literally the Gouvernementsmarine or Government’s Navy. Dubbed opium jager (opium hunters), they engaged in counter-smuggling and interdiction efforts around the archipelago as well as tending aids to navigation, coastal survey, and search and rescue work. Once the war began, they were up-armed and taken under navy control and switched from being gouvernementsvaartuig vessels.

Small patrol boats scuttled in Java on 2 March 1942 included Hr.Ms. Albatros (807 tons), Aldebaran (892 tons), Biaro (700 tons), Eridanus (996 tons), Farmalhout (1,000 tons), Fomalhaut (1,000 tons), Gemma (845 tons), Pollux (1,012 tons), and Valk (850 tons).

Flotilla vessel (opium hunter of the Gouvernements-navy) Valk

The arrival of the submarine Hr.Ms. K XIII in the Emmahaven. In the background is the survey ship Eridanus of the Gouvernementsmarine (GM). Taken over by the Navy in September 1939, Eridanus was converted to a gunboat and later scuttled at Soerabaja on 2 March 1942, along with the submarine shown.

Epilogue 

In all, of the more than 120 ships destroyed by the Dutch on Java, almost 90 were small vessels under 1,000 tons such as the Djembers, the TM torpedo boats, and the assorted coastal patrol, subchasers, and minelayers. Many of their crews were marched into Japanese POW camps to spend the next four years in hell, while a small trickle was able to escape on their own either into the interior– keep in mind that about half of the rank and file in the Dutch Far East fleet were local Indonesians– or manage somehow to make for Allied-controlled areas.

The Japanese were able, as the war dragged on, to raise and salvage many of the scuttled vessels and return them to service in the IJN. Likewise, several of the TMs and B-1s that were left unfinished were eventually launched under the Rising Sun flag.

Imperial Japanese Navy Type-101 MTB, ex-Dutch TM4 ,1943, under attack by USAAF aircraft

Of the larger ships, the destroyer Hr.Ms. Banckert was raised by the escort-poor Japanese in 1944, partially repaired, and put in service as the patrol craft PB-106. On 23 October 1945, VADM Shibata Yaichiro, CINC, Second Southern Expeditionary Fleet, surrendered Java to Free Dutch Forces, and Banckert/PB-106 was returned to the Dutch, who promptly sank her in gunnery exercises.

The stricken Asiatic Fleet destroyer, ex-USS Stewart, whose hull had been broken and her crew had left her scuttling to the Dutch, was also salvaged by the Imperial Japanese Navy, and entered service as Patrol Boat No. 102 in 1943, rearmed with a variety of Dutch and Japanese weapons and her funnels retrunked into a more Japanese fashion. Found at Kure after the war, she was taken over by a U.S. Navy prize crew in October 1945 and steamed under her own power (making 20 knots no less!) across the Pacific to Oakland.

Her old hull number was repainted and a Japanese meatball was placed on her superstructure, she was sunk by the Navy in deep water in May 1946.

Ex-USS Stewart (DD-224) under attack while being sunk as a target on 24 May 1946. Airplanes seen include an F4U Corsair in the lead, followed by two F6F Hellcats. Official U.S. Navy Photograph, now in the collections of the National Archives. Catalog #: 80-G-702830.

When the Dutch returned to Java in 1945, besides resuming control of the few vessels still around that had been refloated by the Japanese– craft which was soon discarded– they embarked on a campaign to salvage many of the rest, with hulks shipped off to Australia where they were broken into the 1950s. 

Remains of former Dutch submarine K VIII, Jervoise Bay, Cockburn Sound, Western Australia in 1956 after being blowup for scrapping.


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The Rat Attack! 1958 edition

The below drawing shows the use of the U.S. Navy’s latest anti-submarine weapon a rocket-assisted torpedo or “RAT,” which incorporated a rocket for the initial launch, a stabilizer pack with a parachute to slow missile for proper water-entry speed, and finally, a sound operated homing torpedo, all held together by an airframe.

NHHC 330-PS-8786 (USN 710060).  The photograph was released on February 10, 1958.

According to the caption of the project graphic:

Propelled by a rocket motor the “RAT” is launching skyward, and dropped accurately to the surface in the vicinity of an enemy submarine. After dropping the airframe, “RAT” uses a parachute and goes beneath the surface, sheds its torpedo and nose cap, and by sound seeks out and destroys the target. “RAT” can be installed in the majority of U.S. destroyers at relatively low cost by utilizing existing five-inch gun mounts and by a slight modification of search and fire-control systems now in use. No additional personnel are required to handle the missile which is 13 ½ feet long and weighs only 480 pounds.

When fielded, of course, RAT, in its third (Charlie) generation, ballooned up to become the 1,073-pound RUR-5 ASROC, for Anti-Submarine Rocket, an acronym the brass probably thought was a better idea when talking to Congress for money.

ASROC Anti-Submarine Rocket at IOC. “Ready for loading into a launcher aboard the destroyer leader USS Norfolk (DL-1) during the weapon evaluation test at Key West Florida. ASROC was developed by the Naval ordnance test station, China Lake and Pasadena California, with the Minneapolis-Honeywell Regulator Company as prime contractor, 24 June 1960.” USN 710732

The original GMLS and Matchbox-launched ASROC was pulled from service in the 1990s with the needless slaughter of the fleet’s steam-powered cruisers and Spruance-class destroyers, replaced by the more advanced (and VLS-compatible) RUM-139 VL-ASROC, which today carries an Mk.54 ASW torpedo to an undisclosed distance “over 10 miles.”

Say hi to Lulu

Official caption: “Navy’s Atomic Depth Bomb Lulu. Lulu, is the nickname for the Navy’s atomic bomb displayed in the bomb bay of an S2F Tracker, while turning in flight, at Long Island, New York. Lulu is designed for fast accurate strikes against submarines by nearly all types of Navy aircraft. Its kill radius covers vast areas, giving enemy submarines a small chance of escape. The S2F, an anti-submarine warfare aircraft, also carries impressive underwing armament including four conventional acoustical-homing torpedoes and two high-velocity air rockets (HVARs). The photograph was released on December 30, 1960.”

330-PSA-1-61-3

Two “Lulu” atomic depth bombs in the bomb bay of an S-2 Tracker, photograph released January 4, 1961. USN 710854

Lulu was better known to the Navy as the Mk 101 Lulu. According to the Atomic Archive, it “was a small implosion-type nuclear depth bomb. The Lulu exploded at a depth and time that allowed the delivery aircraft to escape.”

Lulu carried the 11-kiloton W34 tactical nuclear warhead– which was also used on the Mark 45 ASTOR torpedo, and the Mark 105 Hotpoint nuclear bomb. When assembled, Lulu was just over 7-feet long, and weighed 1,200 pounds. It replaced the earlier Mark 90 “Betty,” a device some three feet longer that carried the 32-Kt Mark 7 warhead and was withdrawn from service by 1960.

“The Lulu atomic depth bomb is the Navy’s deterrent against the control of the seas posed by the huge Communist submarine fleet. Lulu is designed for fast, accurate delivery from nearly all types of U.S. Navy planes. Examining Lulu is Robert J. Goss, a project engineer at the Naval Ordnance Laboratory, Silver Spring, Maryland, where the weapon was conceived. The nuclear warhead was designed and developed by the Atomic Energy Commission.” January 17, 1961. USN 710853

“Explosion of Underwater Nuclear Device, October 1957. The Navy’s new atomic depth bomb “Lulu” was designed to be dropped from a US Navy plane on an enemy submarine lurking beneath the surface. The vast waterspout shown, reaching hundreds of feet into the air, dominates the horizon and dwarfs the instrumentation on ships and barges. Navy experts consider the new “Lulu” weapon a major element in the US defense against the menace of an enemy’s huge submarine fleet. “Lulu” was conceived and developed by the Naval Ordnance Laboratory, Silver Spring, Maryland, in collaboration with the Navy’s Bureau of Ordnance.” 80-G-709977

Besides Trackers and SP-5A/SP-5B Marlin flying boats, it was tested on tactical fixed-wing aircraft, such as the Skyraider. 

Lulu nuclear depth charge mounted aboard a Douglas AD Skyraider during tests, circa 1960. USN 1052478

Lulu was also rated for use by ASW helicopters.

Navy’s Atomic Depth Bomb “Lulu” on an HSS-1 (Sikorsky H-34 Seabat/Seahorse) Anti-Submarine Helicopter at Long Island, New York, December 1960. 330-PSA-1-61-1

The Mk101 Lulu was fielded from 1958 through 1971 and, once it was withdrawn, the only ASW nukes left in the fleet were W44/W55-tipped ASROC/SUBROCs that continued to serve until 1989, at which point the Cold War was declared over and peace ensued.

Clagamore, down for the count

We’ve talked about the GUPPY’d Gato-class “fleet boat” USS Clamagore (SS-343) a few times in the past as she is not only historically significant, long being one of the best-preserved of her type still in American waters, but that the latter distinction has been slipping steadily in the past decade.

The sub is reportedly now at risk of capsizing due to deterioration of the hull. What do you expect from being in saltwater for 75 years?

Well, according to The Post and Courier, she is taking on water and the Patriot’s Point museum is most likely going to get their wish and be able to reef her in the coming months.

From behind the paywall, the big nugget:

The leak can’t be repaired right now, for several reasons, the museum director said, making it “very, very unlikely” the ship will ever be reopened to the public.

Of course, the cost to reef her is estimated to be $2.7M with an “M” so she may just be towed off and broken up.

Used Corvettes on the Pacific Rim Second Hand Market

The Republic of Korea Navy closed out 2021 by decommissioning nine warships vessels from active service.

ROKN Fleet Command closed the books on three Pohang-class Patrol Combat Corvettes (PCC) and five Chamsuri-class patrol boats (PKM) while the Incheon Naval Sector Defense Command decommissioned one Chamsuri-class patrol boat.

The three decommissioned PCCs are the ROKS Wonju (PCC-769), ROKS Seongnam (PCC-775), and ROKS Jecheon (PCC-776), all of which are Flight-IV PCCs.

This leaves just seven Pohangs in service with the ROKN as they are being quickly replaced by new, much more capable, Incheon-class guided-missile frigates.

Cranked out in the mid-1980s to early 1990s, two dozen of these hardy little 1,200-ton, 289-foot corvettes were constructed. Powered by a CODOG suite that included a single LM2500 turbine to hit 32+ knots and two fuel-sipping MTU diesels for an economical 15 knot cruising speed for patrol work, they mount a couple of 76mm OTOs along with some smaller mounts as well as ASW torpedo tubes and a four-pack of Harpoon ASMs.

ROKS Bucheon PCC 773 and ROKS Sokcho PCC 778, Batch IV and V Pohangs. Note the twin 76mm OTO Meleras and twin Breda DARDO 40 mm/70 CIWS mounts. They can also carry Blue Shark ASW torpedos and Harpoons.

These three most recently retired 25-year-old corvettes will likely be donated to Southeast Asian and/or Latin American countries as military aid. Last year, two corvettes were donated to Colombia and Peru while the Philippines already has one, and Vietnam has two.

The Peruvian Navy just received its second donated Pohang, ROKS Suncheon (PCC-767), from South Korea recently. The vessel had been decommissioned in 2019 and will become BAP Guise (CM-28). Like its sister ship BAP Ferre (CM-27), the Guise will be outfitted with Peru’s indigenously-developed VARAYOC combat management system and the Mage QHAWAX electronic support-measure system. 

My bet is that the PI will get one or two of these Pohangs as South Korea’s Hyundai Heavy Industries is already making (and supporting) a pair of 2,600-ton Jose Rizal-class light frigates for the country to a modified version of the shipbuilder’s HDF-2600 design. Two new Rizals and three scratch-and-dent Pohangs, along with three Del Pilar class offshore patrol vessels (ex USCG 378-foot Hamilton-class cutters), make the PI more a player in the South China Sea against increasingly muscular ChiCom moves in the area. Such a fleet is a quantum leap from the PI’s circa 2015 fleet, which was made up of WWII-built minesweepers, LSTs, and PCEs, often of third-hand lineage. 

The recycled Pohangs are a logical counter to China’s recent moves to upgrade relations with Indo-Pacific countries via the export of Ming (Type 035, redesigned Romeo) and Yuan-class (Type 039A) diesel submarines. 

The Final Clock is Ticking on the Ohios

The massive 18,500-ton Ohio-class Trident ballistic missile submarines– the largest subs constructed outside of Russia’s Typhoon and Borei-class boats– are bigger than Great White Fleet-era battleships and can carry enough firepower to practically erase a country from the map in a salvo.

However, they are also aging, with the first of class ordered in 1974 and the final vessel commissioned in 1997. While 24 Ohios were planned, only 18 were completed and the first four of the class later converted to SSGN Tomahawk throwers. The Ohio-class submarines were designed to have a service life of 42 years (two 20-year cycles with a 2-year midlife nuclear refueling period), which has been stretched a bit.

The 14 “boomers” left in service range in age from 24 to 37 years on active duty. The youngest of these, USS Louisiana (SSBN-743) just completed an outrageous 818-day overhaul and refueling at Puget Sound Naval Shipyard that required 6.5 million man-hours of labor to pull off.

Bremerton, WA – USS Louisiana (SSBN 743) undocked Dec. 7, 2021, at Puget Sound Naval Shipyard & Intermediate Maintenance Facility, as part of an Engineered Refueling Overhaul, the final ERO for Ohio-class submarines.

Now set to run another 20 years on that core, at which point she will be 44 years old, “Big Lou” and her sisters will need to be replaced within the coming decade by a fully-fleshed new SSBN, the Columbia class.

While the class leader of those new Tridents, USS Columbia (SSBN-826), was ordered in 2016 from Electric Boat, she was only laid down last October and is not scheduled to leave on its first deterrent patrol until 2031 at a cost of $10 billion with a “B.” Meanwhile, the oldest remaining Ohio bomber, USS Henry M. Jackson (SSBN-730), is set to begin recycling in FY27, although the Navy may try to slow roll that.

However, there is only so much juice you can squeeze from a submarine hull built during the Reagan administration. 

Forgotten WWII Sub Vets: The Dutch

Here we see the Royal Netherlands Nay submarine Hr. Ms. O-12 holding diving demonstrations in the river in front of Willemskade during the Vlootschouw Fleet Review on the afternoon of 29 April 1939. 

In the background is the light cruiser Hr.Ms. Tromp.

Starting WWII with the unprovoked invasion of the country by the Germans in May 1940, the Dutch Navy had 27 active submarines (Onderzeeboot) and three under construction. While the Germans captured three of the active boats (O-8, O-11, and O-12) as well as took over the building units– ultimately commissioning five of these hulls into the Kriegsmarine as UD boats for Underseeboote Dutch– the rest of the Dutch boats escaped and clocked in for hard and heavy work with the Allies. This included 15 submarines, mostly small Great War-era “K” (for “Koloniën” or Colonial) boats based in the Pacific at Surabaya, in the Dutch East Indies, and two in the Caribbean.

Onderzeeboot Hr. Ms. K XVII (c. 1940-1941). She would be lost against the Japanese 13 days into the war in the Pacific.

They gave a good account of themselves, with 10 successful subs credited with sinking 168,813 tons of shipping across 69 Axis vessels including:

*Hr. Ms. O-21 sank U-95 on 28 November 1941 in the Mediterranean.
*Hr. Ms. O-16 hit four out of four Japanese troopships on 12 December 1941, sending three to the bottom.
*Hr. Ms. K XII sank the Japanese tanker Taizan Maru on 13 December 1941.
*Hr. Ms. K XVI torpedoed the destroyer Sagiri on 24 December 1941 off Kuching– the first Allied submarine to sink a Japanese warship.
*Hr. Ms. Dolfijn sank the Italian submarine Malachite in the Med on 9 February 1943.
*Hr. Ms. Zwaardvis (“Swordfish” ex-British HMS Talent) ambushed U-168 on 8 October 1944 in the Java Sea.
*Hr. Ms. Zwaardvis also sent the large Japanese minelayer IJN Itsukushima to the bottom the next week.

Still, they paid the price as shown here from the 1946 Jane’s list of War Losses.

For more on Dutch Submarines in WWII, check out these two excellent sites. 

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