Category Archives: littoral

Colombia’s finest (unterseeboots)

HI Sutton, who has been kinda enough to mirror some of our posts from LSOZI before at his excellent Covert Shores blog (and I do recommend going over there and checking it out regularly) penned a piece for Foreign Brief on the evolution of Narco Subs, which included this dope (no pun intended) info graphic (click to very much big up!)

2400-x1152

2400-x1152

From the article:

2016 looks set to be a bumper year for narco-sub incidents.

Just last month, Colombian security forces discovered a 15-metre narco-sub in the jungle near the Pacific coast. A few weeks earlier, the U.S. Coast Guard published footage of a narco-sub intercepted off the Panamanian coast with 5.5 tonnes of cocaine on board, valued at $200 million. In March, an abandoned narco-sub was found stranded on a reef off the Yucatan peninsula in Mexico, its load of narcotics already unloaded by drug smugglers.

More here.

Warship Wednesday May 18, 2016: Spanish gunboats a-go-go

Here at LSOZI, we are going to take off every Wednesday for a look at the old steam/diesel navies of the 1859-1946 time period and will profile a different ship each week. These ships have a life, a tale all of their own, which sometimes takes them to the strangest places. – Christopher Eger

Warship Wednesday, May 18, 2016: Spanish gunboats a-go-go

NHC NH 45328

NHC NH 45328

Here we see the General Concha-class cañonero (gunboat) Elcano shortly after she became the USS Elcano (PG-38) because of the activities of one Commodore Dewey. She would go on to serve 44 hard years in total.

Laid down 3 March 1882 by Carraca Arsenal, Cadiz, Spain, Elcano was a small warship, at just 157’11” between perpendiculars (165-foot overall length), and tipping the scales at just 620-tons with a full load. Slow, she could only make 11-ish knots. However, what she could do was float in just 10 feet of water and carry two 120mm low angle guns, a single 90mm, four Nordenfelt QFs, and two Whitehead torpedo tubes around the shallow coastal littoral of the Philippines where the Spanish were having issues with the locals that often involved gunplay.

120mm 25cal Hontoria M1879 (left) in Spanish service. Elcano mounted two of these guns

120mm 25cal Hontoria M1879 (left) in Spanish service. Elcano mounted two of these guns. Note the opulent wheelhouse.

Sisters, designed for colonial service, included General Concha, Magallanes, and General Lezo, they were officially and maybe over ambitiously listed as “Crucero no protegido de 3ª clase” or 3rd class protected cruisers.

Class leader, Cañonero de la Armada Española General Concha, 1897

Class leader, Cañonero de la Armada Española General Concha, 1897

Described as “pot-bellied,” Elcano had a quaint Victorian-era ram bow and carried a mixed sailing rig for those times when coal, never plentiful in the PI, was scarce. She was commissioned into the Armada Española in 1884, arriving in Manila late that year. Like most of the 18 or so Spanish ships in the region (to include sister General Lezo), she was commanded by Spanish officers and manned by Filipino crews.

Cañonero español Elcano at commissioning. The Spanish liked dark hulls

Cañonero español Elcano at commissioning. The Spanish liked dark hulls

Her peacetime service was quiet, spending more than a dozen years puttering around the archipelago, waving her flag and showing off her guns. Then came the Spanish-American War.

Just five days after a state of war between the U.S. and Spain began, on 26 April 1898, El Cano came across the U.S.-flagged barque Saranac—under one Captain Bartaby—carrying 1,640 short tons (1,490 t) of coal from Newcastle, New South Wales, to Iloilo, in the Philippines for Dewey’s fleet, and captured the same with a shot across the bow.

You see the good Capt. Bartaby, sailing in the days without wireless and being at sea for a week had missed the announcement of hostilities and said into Iloilo harbor to the surprise of El Cano‘s skipper, who dutifully placed the ship under arrest. Bartaby was able to cheat a Spanish prize court by producing convenient papers that Saranac had been sold for a nominal sum to an English subject just days before her capture, though she had sailed into a Spanish harbor with the Red White and Blue flying. We see what you did there, Bartaby, good show.

Dewey lamented this loss of good Australian coal, which was hard to find in the Asiatic Squadron’s limited stomping grounds after the Brits kicked them out of Hong Kong. Incidentally, the Saranac was the only U.S. ship captured during the war compared with 56 Spanish vessels taken by Yankee surface raiders.

Speaking of which…

The rest of Elcano‘s very short war was uneventful save for being captured during the Battle of Manila Bay on 1 May 1898 along with the rest of the Spanish Pacific Squadron under Admiral Patricio Montojo after Dewey battered his way into the harbor.

ELCANO at Cavite Navy Yard, Philippine Island Description: Courtesy of D. M. MC Pherson, Corte Madena, California. 1967 Catalog #: NH 54354

ELCANO at Cavite Navy Yard, Philippine Island. Note the extensive awnings. Description: Courtesy of D. M. MC Pherson, Corte Madena, California. 1967 Catalog #: NH 54354

Her three sisters all had more final run-ins. General Concha fought at San Juan, Puerto Rico, and narrowly escaped capture only to wreck herself on a reef off Morocco in 1913. General Lezo was ruined by a magazine explosion and sank just after Manila Bay. Magallanes, escaping destruction in Cuba, was discarded after sinking at her dock in 1903.

As for Elcano, her Spanish/Filipino crew was quickly paroled ashore at Cavite, and she languished there for six months under guard until being officially taken over by the U.S. Navy on 8 November.

USS ELCANO (PG-38) at Cavite Navy Yard, Philippine Island circa 1900, before being refitted for the U.S. Navy. Note she has been white-washed and her awning shown above in Spanish service deleted. Description: Courtesy of LCDR John E. Lewis, 1945. Catalog #: NH 54353

USS ELCANO (PG-38) at Cavite Navy Yard, Philippine Island circa 1900, before being refitted for the U.S. Navy. Note she has been white-washed and her awning shown above in Spanish service deleted. You can also make out her starboard torpedo tube door just above the waterline. Description: Courtesy of LCDR John E. Lewis, 1945. Catalog #: NH 54353

Refitted for use to include swapping out her Spanish armament for American 4″/40cals (and plugging her 14-inch bow tubes), she was commissioned as USS Elcano (Gunboat No. 38) on 20 November 1902– because the Navy had a special task for the shallow water warship.

You see, once the U.S. moved into the PI, they used a series of captured and still-floating near-flat bottomed former Spanish gunboats (USS Elcano, Villalobos, Quiros, Pampanga, and Callao) to protect American interests in Chinese waters. These boats, immortalized in the book and film the Sand Pebbles, were known as the Yangtze Patrol (COMYANGPAT), after the huge river system they commonly haunted. The first modern patrol, started in 1903, was with the five Spaniards while two more gunboats, USS Palos and Monocacy, built at Mare Island in California in 1913, would later be shipped across the Pacific to join them while USS Isabel (PY-10) would join the gang in 1921.

Elcano was based in Shanghai from February 1903, her mission was to protect American citizens and property, and promote friendly relations with the Chinese– sometimes promoting the hell out of them when it was needed. She kept this up until 20 October 1907 when she was sent back to Cavite for a three-year refit.

During this time, she served as a tender to 1st Submarine Division, Asiatic Torpedo Fleet, with the small subs of the day having their crews live aboard the much larger (dry-docked) gunboat.

USS Shark (Submarine # 8) In the Dewey Drydock, Olongapo Naval Station, Philippines, circa 1910. The gunboat Elcano is also in the drydock, in the right background. Courtesy of Donald M. McPherson, 1978. U.S. Naval History and Heritage Command Photograph. Catalog #: NH 86963

USS Shark (Submarine # 8) In the Dewey Drydock, Olongapo Naval Station, Philippines, circa 1910. The gunboat Elcano is also in the drydock, in the right background. Courtesy of Donald M. McPherson, 1978. U.S. Naval History and Heritage Command Photograph. Catalog #: NH 86963

Recommissioned 5 December 1910, Elcano took up station at Amony in China and resumed the monotony of river cruises in China’s decidedly strife-ridden countryside that included bar fights with British gunboat crews, welcoming visiting warlords with an open hand (and a cocked 1911 under the table), sending naval parties ashore to rescue random Westerners caught in riots and unrest, besting other USN ships’ baseball teams to the amusement of the locals, and just generally enjoying the regional color (though libo groups were ordered to always go ashore in uniform and with canteens).

In August 1911, Elcano and the rest of the patrol boats were joined by the cruisers USS New Orleans and Germany’s SMS Scharnhorst and Gneisenau in Hankow for the unrest that came along with the anti-monarchist putsch that ended the Manchu dynasty.

There, Elcano participated in an impromptu naval review along with other arriving vessels from Austro-Hungary, Japan, France, Russia, and a six-ship task force dispatched by the British. The ceremony’s true purpose: keep an eye on the nearly one dozen semi-modern Chinese warships in the harbor to make sure a repeat of the Boxer Rebellion didn’t spark. During this period, Elcano‘s men joined others in the International Brigade, sending 30 bluejackets with their Colt machine guns in tow to help guard the Japanese consulate. They were relieved ashore later in the year by a company of the British Yorkshire Light Infantry and a half-regiment of Siberian Cossacks shipped in for the task.

While on the Yangtze River Patrol, circa 1917. Description: Courtesy of Arthur B. Furnas, Corte Madera, California, 1969. Catalog #: NH 69694

While on the Yangtze River Patrol, circa 1917. Description: Courtesy of Arthur B. Furnas, Corte Madera, California, 1969. Catalog #: NH 69694

During the Christmas season, circa December 1917, while in the Philippines. Note the Christmas tree on the bow and the other decorations aboard the ship. Description: Courtesy of Arthur B. Furnas, Corte Madera, California, 1969 Catalog #: NH 69697

During the Christmas season, circa December 1917, while in the Philippines. Note the Christmas tree on the bow and the other decorations aboard the ship.  She would keep up this tradition for years. Description: Courtesy of Arthur B. Furnas, Corte Madera, California, 1969 Catalog #: NH 69697

Elcano would get a short break from Chinese waters when the U.S. entered WWI, being recalled to Manila Bay to serve as a harbor gunboat, patrolling around Corregidor from April 1917-Nov. 1918, just in case a German somehow popped up. Then, it was back to the Yangpat.

Meanwhile in China, as the putsch of 1911 turned into open revolution and then Civil War, Elcano and her compatriots in the Yangpat were ever more involved in fights ashore, landing troops in Nanking in 1916 along with other nations during riots there, in Chungking in 1918 to protect lives during a political crisis, and again in March 1920 at Kiukiang (now Jiujiang on the southern shores of the Yangtze), where Elcano‘s sailors acted alone, and then at Ichang where she landed a company of Marines for the task and remained as station ship and floating headquarters until September 1922.

Some of the ships of the U.S. Navy's Yangtze River Patrol at Hangchow during the 1920s, with several local junks and sampans also present. U.S. Navy ships are (from left to right): USS Isabel (PY-10); USS Villalobos (PG-42); and USS Elcano (PG-38). Courtesy of Donald M. McPherson, 1969. U.S. Naval History and Heritage Command Photograph. Catalog #: NH 67127

Some of the ships of the U.S. Navy’s Yangtze River Patrol at Hangchow during the 1920s, with several local junks and sampans also present. U.S. Navy ships are (from left to right): USS Isabel (PY-10); USS Villalobos (PG-42); and USS Elcano (PG-38). Courtesy of Donald M. McPherson, 1969. U.S. Naval History and Heritage Command Photograph. Catalog #: NH 67127

Chinese general visiting Elcano. The commanding officer of Elcano is seen waiting to greet him at the top of the gangway, Ichang, China, circa 1920's. Also note how they have to walk right into the muzzle of the 4-incher when coming aboard-- very subtle. Look up: Gunboat diplomacy. Description: Catalog #: NH 68976

Chinese general visiting Elcano. The commanding officer of Elcano is seen waiting to greet him at the top of the gangway, Ichang, China, circa the 1920s. Also, note how they have to walk right into the muzzle of the 4-incher when coming aboard– very subtle. Lookup: Gunboat diplomacy. Catalog #: NH 68976

Ship's baseball team going ashore, in China, during the early 1920s. Description: Courtesy of Frederick Cornman, Valois, New York, 1971. Catalog #: NH 77142

Ship’s baseball team went ashore, in China, during the early 1920s. Courtesy of Frederick Cornman, Valois, New York, 1971. Catalog #: NH 77142

Rare today is a bluejacket who was a member of the Noble and Exclusive Order of the Brotherhood of Mighty River Rats of the Yangtze c.1903-1941. Photo via The Real Sand Pebbles.

Rare today is a bluejacket who was a member of the Noble and Exclusive Order of the Brotherhood of Mighty River Rats of the Yangtze c.1903-1941. Photo via The Real Sand Pebbles.

These two letters from Elcano sailors from the 1920 volume of Our Navy, the Standard Publication of the U.S. Navy. Note the mention of the ship’s baseball team, hooch at $1.20 a quart, and the retelling of how 60 bluejackets cleared the streets of Kiukiang by bayonet point:

elcano lettersDuring this service, Elcano proved a foundry for future naval leaders. Stars rained upon her deck, as no less than six of her former skippers went on to become admirals including Mississippian– later Vice Adm– Aaron Stanton “Tip” Merrill, who picked up the Navy Cross at the Battle of Blackett Strait in 1943 by smashing the Japanese destroyers Murasame and Minegumo without a single casualty.

Airing her sails in Chinese waters during the 1920s. She was undoubtedly one of the last warships with canvas in the fleet. Description: Courtesy of Mr. Donald M. McPherson, Corte Madera, California, 1972. Catalog #: NH 75577

Airing her sails in Chinese waters during the 1920s. She was undoubtedly one of the last warships with canvas in the fleet. Courtesy of Mr. Donald M. McPherson, Corte Madera, California, 1972. Catalog #: NH 75577

In dry dock at Shanghai, China, circa early 1920's note the 4"/.40 caliber gun (lower) and the 3-pounder (above) Description: Courtesy of Mr. Donald M. McPherson, Corte Madera, California, 1969 Catalog #: NH 68978

In dry dock at Shanghai, China, circa early 1920’s note the 4″/.40 caliber gun (lower) and the 3-pounder (above) Courtesy of Mr. Donald M. McPherson, Corte Madera, California, 1969 Catalog #: NH 68978

In dry dock, at Shanghai, China, during the early 1920s. Note 4"/40 gun. Description: Courtesy of Frederick Cornman, Valois, New York, 1971. Catalog #: NH 77143

In dry dock, in Shanghai, China, during the early 1920s. Note stern 4″/40 gun. Courtesy of Frederick Cornman, Valois, New York, 1971. Catalog #: NH 77143

Between 1923-25, armed landing teams from Elcano went ashore and stayed ashore almost a half-dozen times in two extended periods in Shanghai during the unrest and street fights between rival factions.

Armed guard, photographed in Chinese waters, during the early 1920s. Note Lewis machine guns. Description: Courtesy of Frederick Cornman, Valois, New York, 1971. Catalog #: NH 77144

Armed guard from Elcano, photographed in Chinese waters, during the early 1920s. Note Lewis machine guns. Courtesy of Frederick Cornman, Valois, New York, 1971. Catalog #: NH 77144

In March 1927, Elcano along with the destroyers USS William P. Preston, USS Noa, and the RN’s HMS Emerald took a “mob of undisciplined Nationalist soldiers” under intense naval gunfire outside of Nanking when the American Consul General John C. Davis and 166 others were besieged at the Standard Oil compound on Socony Hill.

It would be Elcano‘s last whiff of cordite.

By 1926, the seven veteran river gunboats were all worn out and the navy went shopping for replacements. With dollars always short in the Navy budget, it just made sense to build these new boats in China, to save construction and shipping costs. These new ships consisted of two large 500-ton, 210-foot gunboats (USS Luzon and Mindanao); two medium-sized 450-ton, 191-foot boats (USS Oahu and Panay), and two small 350-ton, 159-foot boats (USS Guam and Tutuila).

Once the new gunboats started construction, the five old Yangtze Patrol ships’ days were numbered. In November 1927, Elcano became a barracks ship in Shanghai for the newly arriving crews of the PCUs and by 30 June 1928, she was decommissioned after some 14 years of service to Spain and another three decades to Uncle Sam.

At Ichang China. Note trees on mastheads Description: Courtesy of Lt. Commander Merrill, USN, 1928. Catalog #: NH 54352

At Ichang China. Note trees on mastheads. Courtesy of Lt. Commander Merrill, USN, 1927. Catalog #: NH 54352

Elcano was stripped of all useful material, some of which went to help equip the new Yangpat boats then towed off the coast and disposed of in a sinkex by gunfire on 4 October 1928. Two of her former companions in arms suffered the same fate. Villalobos (PG-42), model for Richard McKenna’s San Pebbles, was likewise sunk by naval gunfire on 9 October 1928 and joined by the ex-Spanish then-USS Pampanga (PG-39) on 21 November. The days of Dewey’s prizes had come and gone, with the Navy getting a good 30 years out of this final batch.

Of the other Spanish armada vessels pressed into U.S. Navy service, Quiros (PG-40) was previously sunk as a target in 1923, and Callo (YFB-11) was sold at Manila the same year where she remained in use as a civilian ferry for some time.

The website, Sand Pebbles.com, keeps the memory of the Yangpat and her vessels alive while scrapbooks and uniforms are preserved in the hands of private collectors.

However, in Nanjing, on an unidentified monument there, is a series of Navy graffiti left by those Yankee river rats, if you look closely, you can just make out USS Elcano under USS Chattanooga.

USS_Chattanooga_Nanjing graffitti I recently found inscribed upon a Chinese monument in Nanjing (Former Yangtze river capital 'Nanking')

They were there.

Group of crewmembers visit a joss house, in China, during the early 1920s. Description: Courtesy of Frederick Cornman, Valois, New York, 1971. Catalog #: NH 77147

Group of Elcano crewmembers visit a joss house, in China, during the early 1920s. Courtesy of Frederick Cornman, Valois, New York, 1971. Catalog #: NH 77147

In one last comment on the vessel, the American ensign from the barque Saranac, captured during Elcano‘s Spanish career, is currently located at the Spanish Naval Museum in Madrid, a cherished war trophy from that one-sided conflict.

Bandera Saranac capturada cañonero Elcano en Filipinas en 1898 Museo Naval Madrid

The Spanish foreign ministry has, politely, declined to return it to the U.S. on several occasions over the past 120 years.

Specs:

Displacement: 620 long tons (630 t)
Length: 165 ft. 6 in (50.44 m)
Beam: 26 ft. (7.9 m)
Draft: 10 ft. (3.0 m)
Installed power: 1,200 ihp (890 kW)
Propulsion:
2 × vertical compound steam engines
2 × single-ended Scotch boilers
2 × screws
Rig: Schooner
Speed: 11 kn (13 mph; 20 km/h)
Complement:
Spanish Navy: 115
U.S. Navy: 99-103
Armament:
As commissioned:
2×1 120mm/25cal Hontoria M1879
1x 90/25 Hontoria M1879
4×1 25/42 Nordenfelt
2x 356mm TT (bow)
1902:
4×1 4″/40
4×1 3pdr (37mm) guns
2x Colt machine guns
1x 3-inch Field gun for landing party along with Lewis guns and rifles, handguns, and cutlasses

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Speaking of drones in the Pacific

I’ve talked a lot about the Navy’s Sea Hunter program and others, but how about this news ICYMI from the Pitcairn Islands– you know, that windswept group of four volcanic atolls in the Pacific inhabited mostly by descendants of the Bounty mutineers and the Tahitians who accompanied them. Sparsely populated, the British Territory sees the occasional USCG/USN or RN ship pass through the area, but there is no enduring presence.

It seems they have hit on the idea of protecting their huge EEZ (322,000 sq. mile, or about the size of Texas and Montana combined!) by unmanned submersible operated by Satellite Applications Catapult and the Pew Charitable Trusts at the Harwell Science and Innovation Campus in Harwell, Oxfordshire.

_81734919_eyes_on_sea_war_room0

Apparently the preserve is home to at least 1,249 species of marine mammals, seabirds and fish, as well as some of the most near-pristine ocean habitat on Earth, and the 54 inhabitants of the Pitcairnians– who depend on the sea for survival– can’t stop trans-global poachers all by themselves.

From the BBC:

The drone, made by US firm Liquid Robotics, will be directed by staff at the satellite watch room which is monitoring fishing vessels. The craft is equipped with a camera that can take snaps of fishing vessels that are in restricted areas, and satellite technology that can pinpoint their location. The unmanned craft starting patrolling late last month.

The Liquid Robotics drone, called a Wave Glider, is a two-part craft made up of an instrument-bearing boat that floats on the ocean surface that is tethered to a submersible. The craft uses the differential motion between the sea surface and the region the submersible traverses to propel itself.

The self-propelling propulsion system means the Wave Glider can stay at sea for months at a time.

Smile, you're on camera...

Smile, you’re on camera…

And her name shall be Sea Hunter

Just unveiled a few weeks ago, the 132-foot USV which aims to be the Navy’s newest 21st Century expendable sub-chaser has been formally christened.

sea hunter

Part of the Defense Advanced Research Projects Agency (DARPA)’s Anti-Submarine Warfare Continuous Trail Unmanned Vessel (ACTUV Pronounced “Active,” ) program, in conjunction with the Office of Naval Research (ONR), Sea Hunter as she is now know, is a game changer.

“This is an inflection point,” Deputy U.S. Defense Secretary Robert Work said in an interview, adding he hoped such ships might find a place in the Western Pacific in as few as five years. “This is the first time we’ve ever had a totally robotic, trans-oceanic-capable ship.”

Sea Hunter will now move to San Diego for a two year pilot program to R&D just what the platform can do and what sensor package works best.

The ship’s projected $20 million all-up price tag and its $15,000 to $20,000 daily operating cost make it relatively inexpensive to operate. For comparison, a single Littoral Combat Ship runs $432 million (at least LCS-6 did) to build and run about $220K a day to operate– but of course that is a moving target.

Still, its easy to see where a flotilla of Sea Hunters could provide a lot of ASW coverage on the cheap and even if mines or torpedoes take half of them out, it’s a hit to the treasury and not incoming C-17s to Dover with waiting honor guards.

And with that in mind, check out this super sweet walk-through/construction video to see just how simple this craft is.

Get your Das Uboote on

Throwback Thursday: The German Bundeswehr posted this groovy six-minute film about the Type 206A coastal diesel boats filmed in 1984. Entitled Stahlfisch (Steelfish) its chock full of really neat operational scenes filmed aboard S176, a handy little 159-foot/450-ton boat which was in commission for 30 years, only being scrapped in 2005.

Of course it’s in German, but all good U-boat films are, right?

Looking to arm a brigade of insurgents on the cheap?

Guns seized by the French Navy on March 20

Hey buddy, got some 7.62×39?

In a 31-day period between 27 Feb and 28 March this year, the Royal Australian Navy Adelaide-class frigate HMAS Darwin (FFG-04), French Navy FREMM-class destroyer FS Provence (D652), and the Cyclone-class patrol craft USS Sirocco (PC-6) impounded the following from three separate stateless dhows:

-5,500 AK-47 assault rifles,
-309 rocket-propelled grenade launchers,
-49 PKM general purpose machine guns,
-39 PKM spare barrels
-64 Dragunov SVD sniper rifles
-21 DShK and KPV type heavy machine guns
-20 60mm mortars

It was determined that the munitions originated in Iran and were likely bound for Houthi insurgents in Yemen, where U.S. allies Saudi Arabia and Kuwait are leading an 11-nation coalition against the Houthi, which are supported by Iran and Hezbollah.

More photos and details in my column at Guns.com

Meet ACTUV

DARPA just released some neat but brief 360-view footage of their Anti-Submarine Warfare (ASW) Continuous Trail Unmanned Vessel (ACTUV) including some of it underway at a good clip (27 knots). The 132-foot USV is meant to be the expendable subchaser of the 21st century, and actually looks pretty sweet.

If they can get past concept and put 50-100 of these cheaply in the Western Pac, networked all sweet to a central ASW War Room, it could really negate all the skrilla the Norks and PLAN are dropping on subs.

The Quai Vat of the Plain of Reeds

In 1959 this chap by the name of Christopher Cockerell working for Saunders-Roe on the Isle of Wight came up with the first working and practical hovercraft, the “Saunders-Roe Nautical 1” (SR.N1), using an Alvis Leonides radial piston engine that drove a lift fan, and used ducted air from the fan for propulsion, producing a neat three-person craft that was capable of crossing the Channel at 35 knots.

This led to the 65-foot SR.N2 in 1961, which could make 73 knots (that’s seventy-three) and carry 48 passengers.

1963 brought the SR.N3 which was designed for military use and mounted a quartet of Bristol-Siddeley Gnome gas turbines, which enabled it to make 70 knots. The prototype didn’t work out too well but set the stage for what was to come.

SR. N3 Loading Royal Marines at Cowes for the Inter-Service Hovercraft Unit trials.

SR. N3 Loading Royal Marines at Cowes for the Inter-Service Hovercraft Unit trials.

Saunders-Roe and Vickers Supermarine merged to become the British Hovercraft Corporation (BHC) in 1966, and their fourth hovercraft, SR.N4, was a mammoth design that eventually topped out at 185-feet long. While the RN theorized using these as mine countermeasures craft, these vessels, of which six were eventually built, were used as passenger ferries as last as 2000.

Then came the primary subject of our tale, the SR.N5 military model of which 14 were built, half by BHC in the UK and the other half Bell in the U.S..

Navy patrol air cushion vehicle glides over the waters of Cau Hai Bay near Hue, South Vietnam hovercraft

Navy patrol air cushion vehicle glides over the waters of Cau Hai Bay near Hue, South Vietnam hovercraft

These 39-foot hovercraft were beamy, at 22 feet wide, and tall at almost 17 feet with the skirt inflated. Powered by a single 900hp Rolls-Royce Gnome turbine for both lift and propulsion, they could make 70 knots and carried enough jet fuel for about 3-4 hours of patrol. They could carry 16 troops.

The hovercraft were flown more than they were sailed

The hovercraft were flown more than they were sailed

Of the 7 British built vessels, one each were bought by the Sultanate of Brunei and the Canadian Coast Guard, the Brits kept four for the RNAS and the last UK boat went into commercial use. Of the 7 Bell hovercraft (designated SK-5s by that company and equipped with a GE engine), three were bought by the U.S. Navy as Patrol Air Cushion Vehicle (PACV, “Pac Vees”) and three by the U.S Army as Air-Cushion Vehicles (ACV) while the last U.S. boat was bought by San Francisco and Oakland Helicopter Airlines to use as a high speed ferry around the Bay Area.

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Navy PACV, dig the mouth

In U.S. military service in Vietnam, these hovercraft picked up .50 cal and 7.62mm machine guns, a modicum of armor and sandbags to protect their four-man crews (thought they could get by with just two crewmen), and by 1966 were hot and heavy in South East Asia as part of Task Force 116 for the Navy craft while the Army’s boats followed the next year as the catchy Air Cushion Vehicle Test Unit, (Armor Platoon Air Cushioned) 39th Cavalry Platoon of 24 men.

Note the sandbagged fighting position atop the house

Navy PACV3. Note the sandbagged fighting position atop the house

USN 1119446

Crewmen of a PACV (patrol air cushion vehicle) and Vietnamese troops round up Viet Cong suspects Caption: During an operation conducted in the plain of reeds near Moc Hoa. The very presence of the “roaring monsters” which the air cushion vehicles are called, skimming across the rice paddies at speeds up to 65 mph, was inducement enough for some Viet Cong to surrender. Photo taken on 21 November 1966 by Photographer’s Mate Second Class D.M. Dreher. Catalog #: USN 1119446 Copyright Owner: National Archives

USN 1119444

UH-1 Iroquois helos of Helicopter Combat Squadron One (HC-1), Detachment 25 Escort a PACV (patrol air cushion vehicle) during Operation Moc Hoa. Photo taken on 21 November 1966 by Photographer’s Mate Second Class D.M. Dreher.

USN 1119845

Troops and detained locals leave PACV (patrol air cushion vehicle) during Operation Moc Hoa. Photographed 23 November 1966 by Photographer’s Mate Second Class Dreher.Description:Catalog #: USN 1119845 Copyright Owner: National Archives

Operating on the Mekong Delta, Cat Lo, and other hot spots, these half-dozen craft were soon dubbed Quai Vat (Monsters) by Mr. Charles as they raced around the swamps dropping off ARVN troops, Nung mercenaries and U.S. forces in hard-to-reach mudbogs. They were loud as hell (ever been around an LCAC?) but they were effective and, with the turbine shut down and the skirt on a relatively dry spot in the middle of the marsh, they were instant fighting positions.

By early 1968, the Army was even looking at (neat report here) making entire platoons of these craft, armed with 106mm recoilless rifles, Tow or Shillelagh missiles and FFAR rockets much like the helicopter gunships of the day.

Army ACV

Army ACV

Army ACV

Army ACV. They weren’t as wild as the Navy’s PACVs

That Loach is really hugging (and looks like it is having a hard time keeping up)

That Loach is really hugging (and looks like it is having a hard time keeping up)

Then came the epic six-day battle in the Plain of Reeds.

While conducting a combat operation in July 1968 in support of a South Vietnamese CIDG (Civilian Irregular Defense Force) unit and US infantry advisors, the Army SK5s were engaged in a 7-hour continuous fight with enemy forces.

During the reconnaissance sweep, the SK5 boats inspected over 60 houses along the waterline and discovered over 25 bunkers within the area.

After destroying the bunkers with their supporting infantry, the two hovercraft came under enemy fire. Both craft returned fire, but were unable to press the attack since the CIDG forces were unwilling to dismount into a potential ambush.

After disengaging, both ACVs repositioned to another area and were once again taken under fire. Both vessels returned fire and when the infantry inspected the area they discovered several killed enemy soldiers.

All was good until one of the Army craft, ACV #901, was destroyed on 9 Jan 1970. ACV #902 was destroyed in August 1970. The final Army unit, #903 was returned stateside.

The three Navy PACVs were likewise brought back CONUS and transferred to the Coast Guard in 1971.

Behold, the Coast Guard's hovercraft fleet!

Behold, the Coast Guard’s hovercraft fleet!

They actually look snazzy in hi-viz livery

They actually look snazzy in hi-viz livery. Above is CG-38102, formerly PACV1.

Numbered CG-38101, 38102 and 38103, one (103) was lost in an accident while the first two were transferred to the US Army Mobility Equipment Research and Development Center on 25 April 1975, making the Army the only U.S. military hovercraft owner until the Navy took possession of the first 87-foot long Landing Craft Air Cushion (LCAC) vessels in 1986.

Of the British hovercraft, the original SR.N1 is held by the Science Museum at Wroughton, the only SR.N2 was broken up in the 1970s, SR.N3 was used for target practice, 4 of the 6 SR.N4 ferries were broken up and the two left are currently at the Hovercraft Museum in Lee-on-the-Solent but are facing imminent destruction.

Of the SR.N5s, one U.S Army boat, ACV 903, was returned to the states and is on display at the Transportation Museum in Ft. Eustis, VA. The sole remaining Navy PACV is at the Bellingham International Maritime Museum in Washington.

As for the British Hovercraft Corporation, moving past the SR.N5s they built the 58-foot SR.N6 in large numbers in the 1960s, being their most successful model of all with at least 54 completed. Popular in commercial use as a 58-passenger ferry, a military version capable of carrying a platoon was used by the Canadian Coast Guard, Italian Navy, Egyptian Navy, Iraqi Navy, Iranian Navy and the Saudi Arabian Frontier Force. The Shah liked them so much he ordered a half dozen larger 78-foot BH.7 hovercraft in the early 1970s while the CCG bought three of BHC’s last hovercraft, the 90 passenger AP1-88 boats before the company folded in 1984.

But we do have 91 U.S.-built LCACs today…

A landing craft air cushion leaves the well deck aboard the USS Iwo Jima in the Persian Gulf, Sept. 21, 2006

A landing craft air cushion leaves the well deck aboard the USS Iwo Jima in the Persian Gulf, Sept. 21, 2006

Meet the new Echo Voyager unmanned underwater vehicle

We all live in a yellow submarine...

We all live in a yellow submarine…

Boeing’s massive 51-foot Echo Voyager, debuted yesterday, is an outgrowth of their 18-foot Echo Ranger and 32-foot Echo Seeker prototype testbed UUV’s– which were capable of 2-3 day operations– only Voyager would be capable of missions lasting months in theory.

Equipped with a hybrid rechargeable power system and modular payload bay, the midget sub sans crew, according to the video below, can do everything in theory from being a weapons platform, to launching and operating UAVs, to protecting infrastructure (read= smoking frogmen operating near sensitive bases), to submarine decoy, mine countermeasures, ASW search and barrier ops, and battlespace prep– though the video spends a lot of time talking about how it can help with oceanography and oil spills as well.

51-foot Echo Voyager 2
“Echo Voyager is a new approach to how UUVs will operate and be used in the future,” said Darryl Davis, president, Boeing Phantom Works. “Our investments in innovative technologies such as autonomous systems are helping our customers affordably meet mission requirements now and in the years to come.”

The Extorp..

WATERS NEAR GUAM (Mar. 07, 2016) The Arleigh Burke-Class guided-missile destroyer USS McCampbell (DDG-85) fires an MK-54 exercise torpedo (EXTORP) over the port side during an anti-submarine warfare (ASW) event as part of MULTI SAIL 2016. MULTI SAIL is a bilateral training exercise aimed at interoperability between the U.S. and Japanese forces. This exercise builds interoperability and benefits from realistic, shared training, enhancing our ability to work together to confront any contingency. McCampbell is on patrol in the 7th fleet of operations in support of security and stability in the Indo-Asia-Pacific. (U.S. Navy photo by Mass Communication Specialist 2nd Class Bryan Jackson/released.)

WATERS NEAR GUAM (Mar. 07, 2016) The Arleigh Burke-Class guided-missile destroyer USS McCampbell (DDG-85) fires an MK-54 exercise torpedo (EXTORP) over the port side during an anti-submarine warfare (ASW) event as part of MULTI SAIL 2016. MULTI SAIL is a bilateral training exercise aimed at interoperability between the U.S. and Japanese forces. This exercise builds interoperability and benefits from realistic, shared training, enhancing our ability to work together to confront any contingency. McCampbell is on patrol in the 7th fleet of operations in support of security and stability in the Indo-Asia-Pacific. (U.S. Navy photo by Mass Communication Specialist 2nd Class Bryan Jackson/released.)

Long a staple of ASW training, exercise/recoverable torpedoes (extorps/rextorps) have been around for the Mk44, Mk46, Mk48, Mk50 and 54 variants and are typically the reworked warshot fish in which the explosive is replaced with an electronic signaling and guidance package that records the position of the device for data analysis after the exercise, and various signaling devices that help locate the torpedo in the water for recovery afterward.

They are pretty brightly marked, and colorful.

130924-N-XZ912-002 MEDITERRANEAN SEA (Sept. 24, 2013) – Gunners Mate 3rd Class Amelia Sandoval, left, and Gunners Mate 2nd Class Samuel Ervin perform maintenance on a torpedo tube aboard the Arleigh Burke-class guided-missile destroyer USS Barry (DDG 52). Barry, homeported in Norfolk, Va., is currently on a scheduled deployment supporting maritime security operations and theater security cooperation efforts in the 6th Fleet area of operations. (U.S. Navy photo by Mass Communication Specialist 1st Class Christopher B. Stoltz)

130924-N-XZ912-002 MEDITERRANEAN SEA (Sept. 24, 2013) – Gunners Mate 3rd Class Amelia Sandoval, left, and Gunners Mate 2nd Class Samuel Ervin perform maintenance on a torpedo tube aboard the Arleigh Burke-class guided-missile destroyer USS Barry (DDG 52). Barry, homeported in Norfolk, Va., is currently on a scheduled deployment supporting maritime security operations and theater security cooperation efforts in the 6th Fleet area of operations. (U.S. Navy photo by Mass Communication Specialist 1st Class Christopher B. Stoltz)

Almost always retrieved after tests or exercises, they are refurbished and shot again, sometimes dozens of times.

040129-N-9288T-087 Pacific Ocean (Jan. 29, 2004) Ð Search and rescue swimmers Quartermaster 2nd Class Justin Peel, from Polson, Mont., and Sonar Technician Surface 2nd Class Stephen Stavros, from Springtown, Mass., secure an MK-46 exercise torpedo to be hoisted aboard the guided missile cruiser USS Vincennes (CG 49) after a successful torpedo exercise. Vincennes is participating in Multi-Sail, a combat readiness exercise in the Okinawa operational area. ItÕs designed to complete Surface Force Training Manual Requirements and to exercise participants in a multi-ship operational environment. U.S. Navy photo by PhotographerÕs Mate 2nd Class Brandon A. Teeples. (RELEASED)

040129-N-9288T-087 Pacific Ocean (Jan. 29, 2004) Ð Search and rescue swimmers Quartermaster 2nd Class Justin Peel, from Polson, Mont., and Sonar Technician Surface 2nd Class Stephen Stavros, from Springtown, Mass., secure an MK-46 exercise torpedo to be hoisted aboard the guided missile cruiser USS Vincennes (CG 49) after a successful torpedo exercise. Vincennes is participating in Multi-Sail, a combat readiness exercise in the Okinawa operational area. Its designed to complete Surface Force Training Manual Requirements and to exercise participants in a multi-ship operational environment. U.S. Navy photo by PhotographerÕs Mate 2nd Class Brandon A. Teeples. (RELEASED)

If not recovered by retrieval personnel for some reason, they have a ‘phone home’ marking on the casing should a random skin diver or fisherman chance upon one.

130926-N-ZI955-062 MISAWA AIR BASE, Japan (Sept. 26, 2013) Staff Sgt. Justin Walter, left, originally from Greenville, S.C., inspects a MK46 Recoverable Exercise Torpedo as Aviation Ordnanceman 1st Class Jeremy Rooks, a native of Chesapeake, Va., observes during a fuel spill response drill at the Navy Munitions Command East Asia Division (NMC EAD) Unit Misawa complex on board Misawa Air Base, Sept. 26, 2013. Walter serves as an explosive ordnance disposal technician for the 35th Fighter Wing Civil Engineer Squadron and Rooks is a weapons training team observer for NMC EAD Unit Misawa. NMC EAD Unit Misawa is conducting a Torpedo Readiness Assessment, which calls for the command to inspect and validate its Otto Fuel II response procedures. (U.S. Navy photo by Senior Chief Mass Communication Specialist Daniel Sanford/Released)

130926-N-ZI955-062 MISAWA AIR BASE, Japan (Sept. 26, 2013) Staff Sgt. Justin Walter, left, originally from Greenville, S.C., inspects a MK46 Recoverable Exercise Torpedo as Aviation Ordnanceman 1st Class Jeremy Rooks, a native of Chesapeake, Va., observes during a fuel spill response drill at the Navy Munitions Command East Asia Division (NMC EAD) Unit Misawa complex on board Misawa Air Base, Sept. 26, 2013. Walter serves as an explosive ordnance disposal technician for the 35th Fighter Wing Civil Engineer Squadron and Rooks is a weapons training team observer for NMC EAD Unit Misawa. NMC EAD Unit Misawa is conducting a Torpedo Readiness Assessment, which calls for the command to inspect and validate its Otto Fuel II response procedures. (U.S. Navy photo by Senior Chief Mass Communication Specialist Daniel Sanford/Released)

 

 

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