Category Archives: mine warfare

Meet Seagull, Israel’s new USV robot boat

seagull

Elbit Systems has a new 40-foot unmanned surface vehicle, the Seagull, which is designed to operate in pairs for either mine sweeping or sub busting. The idea is the first vehicle will have surveillance gear to find the sub or mine, while the second will carry either clearance gear (an ROV) or a anti-submarine torpedo to shove right up the sneaky U-boat’s kisser.

seagull 2 sea gull 3

From Elbit’s presser:

Drawing on world class know -how derived from generations of Unmanned Aircraft Systems (UAS) design, development and operation and its naval capabilities, Elbit Systems’ newest offering in the unmanned platform field is Seagull -an organic, modular, highly autonomous, multi-mission Unmanned Surface Vehicle (USV) system.

Seagull is a 12-meter USV with replaceable mission modules, with two vessels capable of being operated and controlled in concert using a single Mission Control System (MCS), from manned ships or from the shore.

The system provides unmanned end-to-end mine hunting operation taking the man out of the mine field. It provides mission planning, and on-line operation in known and unknown areas,including area survey, search, detection, classification, identification, neutralization and verification. It is equipped to search the entire water volume and operate underwater vehicles to identify and neutralize mines.

The idea is the two-boat pair can operate within 50-100 miles of the control station and remain at sea for 96 hours, covering a pretty large swath of littoral in the process while their operators sip coffee back in a trailer somewhere. A second set of boats can be kept ready to rotate out the first, making a persistent sea station a very possible endeavor.

This obviously has uses in a MIUWU or PSU augmentation or replacement.

Speaking of which, DARPA’s Sea Hunter–the Anti-Submarine Warfare Continuous Trail Unmanned Vessel, or ACTUV is the U.S.’s version of this, and is mucho larger at some 132-feet long and is getting some love on social media as of late.

Warship Wednesday Dec.23, 2015: The lost jewel from Bizerte

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, Dec.23, 2015: The lost jewel from Bizerte

960x633

960×633

Here we see the French Émeraude-class diesel-electric submarine (Sous-Marin) Turquoise (Q46), captured by the Turks, in a dry dock undergoing repairs in Constantinople, 1916.

The French got into the submarine business about the same time as the Americans, launching Admiral Simeon Bourgois’s Plongeur in April 1863.

Before the turn of the century, the Republic had flirted with a half dozen one-off boats before they ordered the four boats of the Sirene class in 1901 followed quickly by another four of the Farfadet-class, the two Algerien-class boats, 20 Naiade-class craft in 1904, Submarines X, Y and Z (not making it up), the two ship Aigrette-class and the submarine Omega.

All told, between 1900-1905, the French coughed up 36 submersibles spread across nine very different classes.

After all that quick learning curve, they proceeded with the Emeraude (Emerald) class in 1903. These ships were an improvement of the Faradet (Sprite) class designed by Gabriel-Émile-Marie Maugas. The 135-foot long/200-ton Faradet quartet had everything a 20th Century smoke boat needed: it was a steel-hulled hybrid submersible that used diesel engines on the surface and electric below, had 4 torpedo tubes, could dive to 100~ feet, and could make a stately 6-knots.

Farfadet-class boat Lutin (Q10), leaving port in 1903.

Farfadet-class boat Lutin (Q10), leaving port in 1903.

While they weren’t successful (two sank, killing 30 men between them) Maugas learned from early mistakes and they were significantly improved in the Emeraudes. These later boats used two-shaft propulsion– rare in early submarines–and were 147 feet long with a 425-ton full load. Capable of making right at 12 knots for brief periods, they carried a half dozen torpedo tubes (four in the bow and two in the stern). They also could mount a machine gun and a light deck gun if needed.

Again, improvements!

Profile of the Emeralds surfaced.

Profile of the Emeralds surfaced.

Class leader Emeraude was laid down at Arsenal de Cherbourg in 1903 followed by sisters Opale and Rubis at the same yard and another three, Saphir, Topase, and the hero of our story, Turquoise, at Arsenal de Toulon in the Med.

Launching 1908

Launching 1908

Turquoise was commissioned on 10 December 1910 and, with her two Toulon-built sisters, served with the French Mediterranean Fleet from the Submarine Station at Bizerte.

She repeated the bad luck of the Farfadet-class predecessors and in 1913 lost an officer and several crew swept off her deck in rough seas.

Turquoise-ELD

When war erupted in 1914, the jewel boats soon found they had operational problems staying submerged due to issues with buoyancy and were plagued by troublesome diesels (hey, the manufacturer, Sautter-Harlé, was out of business by 1918 so what does that tell you).

Turquoise_xx_4a

To help with surface ops, Topase and Turquoise were fitted with a smallish deck gun in 1915.

Saphir probably would have been too, but she caught a Turkish mine in the Sea of Marma on 15 January trying to sneak through the straits, and went down.

Topase and Turquoise continued to operate against the Turks, with the latter running into trouble on 30 October 1915. Around the village of Orhaniye in the Dardanelles near Nagara there were six Ottoman Army artillerymen led by Corporal G Boaz Deepa who spotted a periscope moving past a nearby water tower.

Becoming tangled in a net, the submarine became a sitting duck. With their field piece, they were able to get a lucky shot on the mast, and, with the submarine filling with water, she made an emergency surface.

French submarine captured at Dardanelles by Charles Fouqueray

There, the six cannoneers took 28 French submariners captive and impounded the sub, sunk in shallow water.

Turquoise’s skipper, Lt. Leon Marie Ravenel, was in 1918 awarded the Knight of the Legion of Honour as was his XO. These sailors suffered a great deal in Turkish captivity, with five deaths.

German propaganda postcard, note the Ottoman crew and markings

“Das frĂĽhere französische U-Boot Turquoise welches von den TĂĽrken gefangen genommen wurde und jetzt als Mustedjb oubaschi in tĂĽrkischen Diensten steht.” (The former French submarine Turquoise which was captured by the Turks and is now in Turkish service as Mustedjb oubaschi.) Paul Hoffman & Co. postcard in the NYPL collection

The Turks later raised the batter French boat and, naming her Mustadieh Ombashi (or MĂĽstecip Ombasi), planned to use her in the Ottoman fleet.

The news of her capture and use under new management flashed through the Central Powers. This is from the Austrian archives:

“Französische Unterseeboot Turquoise” via Osterreichisches Staatsarchiv

Ottoman Uniforms reports her conning tower was painted with a large rectangle (likely to be red), with the large white script during this time.

Via Ottoman Uniforms

Via Ottoman Uniforms

However, as submariners were rare in WWI Constantinople, she never took to sea in an operational sense again and in 1919 the victorious French reclaimed their submarine, which they later scrapped in 1920.

Her wartime service for the Turks seems to have been limited to taking a few pictures for propaganda purposes and being used as a fixed battery charging station for German U-boats operating in the Black Sea.

As for the last Bizerte boat, Topase, she finished the war intact and was stricken on 12 November 1919 along with the three Emeraudes who served quietly in the Atlantic.

Turquoise/Mustadieh Ombashi has been preserved as a model, however.

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If you have a further interest in the submarines of Gallipoli, go here.

Specs:

1884x1543

1884×1543

Displacement 392 tons (surfaced) / 427 (submerged)
Length, 147 feet
Bean 12 feet
Draft 12 feet
No of shafts 2
Machinery
2 Sautter-Harlé diesels, 600hp / electric motors (440kW)
Max speed, knots 11.5 surfaced / 9.2 submerged
Endurance, nm 2000 at 7.3kts surfaced / 100nm at 5kts submerged
Armament:
6×450 TT (4 bows, 2 sterns) for 450mm torpedoes with no reloads
1x M1902 Model 37mm deck gun, 1x8mm light Hotchkiss machine gun (fitted in 1915)
Complement 21-28
Diving depth operational, 130 feet.

If you liked this column, please consider joining the International Naval Research Organization (INRO), Publishers of Warship International

They are possibly one of the best sources of naval study, images, and fellowship you can find http://www.warship.org/membership.htm

The International Naval Research Organization is a non-profit corporation dedicated to the encouragement of the study of naval vessels and their histories, principally in the era of iron and steel warships (about 1860 to date). Its purpose is to provide information and a means of contact for those interested in warships.

Nearing their 50th Anniversary, Warship International, the written tome of the INRO has published hundreds of articles, most of which are unique in their sweep and subject.

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Warship Wednesday Dec. 16, 2015: The Long Legged Bird of the Java Sea

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, Dec. 16, 2015: The Long-Legged Bird of the Java Sea

Naval History and Heritage Command#: NH 85178

Naval History and Heritage Command#: NH 85178

Here we see the humble Lapwing-class minesweeper USS Heron (AM-10/AVP-2) while fitting out at her builders in late 1918, being rushed to completion to help serve in the Great War. While her service “over there” was rather quiet in the end, her trip to the other side of the world and experiences in another world war would prove more exciting.

When a young upstart by the name of Franklin D. Roosevelt came to the Navy Department in 1913 as Assistant Secretary of the Navy, he helped engineer one of the largest naval build-ups in world history. By the time the U.S. entered World War I officially in 1917, it may have been Mr. Wilson’s name in the role of Commander in Chief, but it was Mr. Roosevelt’s fleet.

One of his passions was the concept of the Great North Sea Mine Barrage, a string of as many as 400,000 (planned) sea mines that would shut down the Kaiser’s access once and for all to the Atlantic and saving Western Europe (and its overseas Allies) from the scourge of German U-boats. A British idea dating from late 1916, the U.S. Navy’s Admiral Sims thought it was a bullshit waste of time but it was FDR’s insistence to President Wilson in the scheme that ultimately won the day.

mines-anchors1 North_Sea_Mine_Barrage_map_1918

While a fleet of converted steamships (and two old cruisers- USS San Francisco and USS Baltimore) started dropping mines in June 1918, they only managed to sow 70,177 by Armistice Day and accounted for a paltry two U-boats gesunken (although some estimates range as high as 8 counting unaccounted-for boats).

And the thing is, you don’t throw that many mines in international shipping lanes without having a plan to clean them up after the war (while having the bonus of using those mine countermeasures ships to sweep enemy-laid fields as well).

That’s where the 54 vessels of the Lapwing-class came in.

Review of the Atlantic Fleet Minesweeping Squadron, November 1919. USS Lapwing (AM-1) and other ships of the squadron anchored in the Hudson River, off New York City, while being reviewed by Secretary of the Navy Josephus Daniels on 24 November 1919, following their return to the United States after taking part in clearing the North Sea mine barrage. The other ships visible are: USS Lark (Minesweeper No. 21), with USS SC-208 alongside (at left); and USS Swan (Minesweeper No. 34) with USS SC-356 alongside (at right). Heron was there, but is not seen on the photo. U.S. Navy photo NH 44903

Review of the Atlantic Fleet Minesweeping Squadron, November 1919. USS Lapwing (AM-1) and other ships of the squadron anchored in the Hudson River, off New York City, while being reviewed by Secretary of the Navy Josephus Daniels on 24 November 1919, following their return to the United States after taking part in clearing the North Sea mine barrage. The other ships visible are USS Lark (Minesweeper No. 21), with USS SC-208 alongside (at left); and USS Swan (Minesweeper No. 34) with USS SC-356 alongside (at right). Heron was there but is not seen in the photo. U.S. Navy photo NH 44903. Note the crow’s nest for sighting floating mines.

Inspired by large seagoing New England fishing trawlers, these 187-foot long ships were large enough, at 965-tons full, to carry a pair of economical reciprocating diesel engines (or two boilers and one VTE engine) with a decent enough range to make it across the Atlantic on their own (though with a blisteringly slow speed of just 14 knots when wide open on trials.)

They could also use a sail rig to poke along at low speed with no engines, a useful trait for working in a minefield.

Lapwing-class sister USS Falcon AM-28 in Pensacola Bay 1924 with the Atlantic submarine fleet. Note her rig

Not intended to do much more than clear mines, they were given a couple 3-inch pop guns to discourage small enemy surface combatants intent to keep minesweepers from clearing said mines. The class leader, Lapwing, designated Auxiliary Minesweeper #1 (AM-1), was laid down at Todd in New York in October 1917 and another 53 soon followed. While five were canceled in November 1918, the other 48 were eventually finished– even if they came to the war a little late.

This leads us to the hero of our tale, USS Heron.

Laid down at the Standard Shipbuilding Co. in Boston, she was the first U.S. Navy ship to carry that name, that of a long-legged seabird of the Gulf Coast. Like all her sisters, they carried bird names.

Commissioned 30 October 1918, the war ended 12 days later but she was still very much needed to help take down that whole barrage thing. Therefore, she arrived in the Orkney Islands in the spring of 1919 where, along with 28 of her sisters and a host of converted British trawlers, she scooped up Mk.6 naval mines from the deep for the rest of the year.

When she returned home, she was transferred to the far off Asiatic Fleet, sailing for Cavite PI in October 1920.

There, she was laid up in 1922, with not much need of an active minesweeper.

Then, with the Navy figuring out these economical little boats with their shallow draft (they could float in ten feet of seawater) could be used for any number of side jobs, started re-purposing them.

Six of the “Old Birds” were reclassified as salvage ships (ARSs) while another half-dozen became submarine rescue ships (ASRs). The Coast Guard picked up USS Redwing for use as a cutter during Prohibition while the U.S. Coast & Geographic Survey acquired USS Osprey and USS Flamingo and the Shipping Board accepted USS Peacock as a tug.

A few were retained as minesweepers in the reserve fleet, some used as depot ships/net layers, one converted to a gunboat, another to an ocean-going tug, three were sunk during peacetime service (USS Cardinal struck a reef off Dutch Harbor in 1923 while USS Curlew did the same off Panama in 1926 and USS Sanderling went down in 1937 by accident in Hawaii) while nine– Heron included– became seaplane tenders.

While these ships could only carry 1-2 seaplanes on deck, they typically milled around with a converted barge alongside that could park a half dozen or more single-engine floatplanes for service and support.

U.S. Navy Small Seaplane Tender USS Heron (AVP-2); no date. Note the floatplane service barge alongside. Image via navsource http://www.navsource.org/archives/11/02010.htm

U.S. Navy Small Seaplane Tender USS Heron (AVP-2); no date. Note the floatplane service barge alongside. Image via USNI collection.

Recommissioned in 1924 (later picking up the hull number AVP-2, as a Small Seaplane Tender), Heron was photographed with a variety of floatplanes including Grumman JF amphibians and Vought O2U-2 scout planes in the 20s and 30s.

Carrying two Vought O2U-2 scout planes of Scouting Eight (VS-8) while serving in the Asiatic Fleet on 15 December 1930. Photo No. 80-G-1017155 Source: U.S. National Archives, RG-80-G

Carrying two Vought O2U-2 scout planes of Scouting Eight (VS-8) while serving in the Asiatic Fleet on 15 December 1930. Photo No. 80-G-1017155 Source: U.S. National Archives, RG-80-G

Serving as an aircraft tender before 1936

Serving as an aircraft tender before 1936. Note the aviation roundel on her bow.

She continued her quiet existence in the South China Sea and elsewhere in Chinese and Philippine waters, filling in as a target tower, survey ship, and gunboat when needed.

U.S. warships inside and outside the breakwater, circa the later 1930s. Color-tinted photograph by the Ah-Fung O.K. Photo Service. Among the ships present are USS Black Hawk (AD-9), in left center, with a nest of four destroyers alongside. USS Whipple (DD-217) is the outboard unit of these four. USS Heron (AM-10) is alongside the breakwater, at right, with a Grumman JF amphibian airplane on her fantail. Another JF is floating inside the breakwater, toward the left. Two Chinese sampans are under sail in the center foreground. The four destroyers outside the breakwater are (from left to right): USS Stewart (DD-224), unidentified, USS Bulmer (DD-222) and USS Pillsbury (DD-227). Collection of James E. Thompson, 1979. U.S. Naval History and Heritage Command Photograph. Catalog #: NH 90544-KN

U.S. warships inside and outside the breakwater, circa the later 1930s. Color-tinted photograph by the Ah-Fung O.K. Photo Service. Among the ships present are USS Black Hawk (AD-9), in the left-center, with a nest of four destroyers alongside. USS Whipple (DD-217) is the outboard unit of these four. USS Heron (AM-10) is alongside the breakwater, at right, with a Grumman JF amphibian airplane on her fantail. Another JF is floating inside the breakwater, toward the left. Two Chinese sampans are under sail in the center foreground. The four destroyers outside the breakwater are (from left to right): USS Stewart (DD-224), unidentified, USS Bulmer (DD-222), and USS Pillsbury (DD-227). Collection of James E. Thompson, 1979. U.S. Naval History and Heritage Command Photograph. Catalog #: NH 90544-KN

Stationed at Port Ciego, Philippines when the balloon went up, Heron was luckier than several of her sisters in the same waters, with six sunk in six months.

  • USS Tanager (AM-5), Sunk by Japanese shore battery fire off Bataan, 4 May 1942.
  • USS Finch (AM-9), Damaged by Japanese bomb (near-miss), 9 Apr 1942 while moored at the eastern point of Corregidor. Abandoned, 10 Apr 1942. Salvaged by Imperial Japanese Navy; renamed W-103. Sunk for good by US carrier aircraft in early 1945.
  • USS Quail (AM-15) Damaged by Japanese bombs and guns at Corregidor, she was scuttled 5 May 1942 to prevent capture.
  • USS Penguin (AM-33) Damaged by Japanese aircraft in Agana Harbor, Guam, 8 Dec 1941; scuttled in 200 fathoms to prevent capture.
  • USS Bittern (AM-36) Heavily damaged by Japanese aircraft at Cavite Navy Yard, Philippines; scuttled in Manila Bay to prevent capture.
  • USS Pigeon (AM-47) sunk by Japanese aircraft at Corregidor, 4 May 1942.

Heron was ordered to leave the PI for Ambon Island, part of the Maluku Islands of the Dutch East Indies (now Indonesia), a strategic key to the area held by some 3,000 Dutch and Australian troops. There, along with USS William B. Preston (AVD 7), she supported PBYs of Patrol Wing TEN until the going got tough and the island was overrun in February 1942.

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It was during this time at Ambon that Heron became a legend. Upon hearing that the four-piper USS Peary (DD-226) was damaged, she sortied out to help assist or tow if needed but was caught by Japanese flying boats and proceeded to fight them off over several hours.

As noted dryly in the combat narrative of the Java Sea Campaign:

The Heron, which was sent north to assist the Peary, was herself bombed in a protracted action in Molucca Strait on the 31st. Shrapnel from near hits penetrated the ship’s side and started fires in the paint locker and forward hold. About the middle of the afternoon, a 100-pound shrapnel bomb struck the foremast near the top and sprayed the ship with splinters, which did considerable damage. The Heron acquitted herself well, however, in spite of her 12-knot speed, and succeeded in shooting down a large enemy seaplane.

“Evasion of Destruction” by Richard DeRosset portrays a strafing run by three Japanese “Mavis” flying boats following their unsuccessful torpedo attack on the USS Heron (AVP-2) on 20 December 1941. Heron shot down one of the aircraft with her starboard 3-inch gun; her port gun had been disabled by earlier combat action. This final attack followed a series of earlier ones by twelve other enemy aircraft against the seaplane tender as she sailed alone in the Java Sea. Due to heroic actions by her captain and crew, Heron survived seemingly overwhelming odds during the long ordeal. Heron had approximately 26 casualties, or about 50 percent of the crew, because of the attack.

“Evasion of Destruction” by Richard DeRosset portrays a strafing run by three Japanese “Mavis” flying boats following their unsuccessful torpedo attack on the USS Heron (AVP-2) on 31 December 1941. Heron shot down one of the aircraft with her starboard 3-inch gun; her port gun had been disabled by earlier combat action. This final attack followed a series of earlier ones by twelve other enemy aircraft against the seaplane tender as she sailed alone in the Java Sea. Due to heroic actions by her captain and crew, Heron survived seemingly overwhelming odds during the long ordeal. Heron had approximately 26 casualties, or about 50 percent of the crew, because of the attack.

For her valiant action during this period, Heron received the Navy Unit Commendation.

The rest of her war service was less eventful, serving in Australian waters as a patrol boat and seaplane tender until 1944 when she began moving back to the PI with the massive Allied armada to retake the archipelago. She conducted search and rescue operations and assisted in landings where needed, still providing tender service until she was decommissioned at Subic Bay, Philippines 12 February 1946, earning four battle stars for the War.

Sold for scrap to a Chinese concern in Shanghai in 1947, Heron‘s ultimate fate is unknown but she may have lingered on as a trawler or coaster for some time or in some form.

As for the rest of her class, others also served heroically in the war with one, USS Vireo, picking up seven battle stars for her service as a fleet tug from Pearl Harbor to Midway to Guadalcanal and Okinawa. The Germans sank USS Partridge at Normandy and both Gannet and Redwing via torpedoes in the Atlantic. Most of the old birds remaining in U.S. service were scrapped in 1946-48 with the last on Uncle Sam’s list, Flamingo, sold for scrap in July 1953.

Some lived on as trawlers and one, USS Auk (AM-38) was sold to Venezuela in 1948, where she lasted until 1962 as the gunboat Felipe Larrazabal. After her decommissioning, she was not immediately scrapped and was reported afloat in a backwater channel as late as 1968. Her fate after that is not recorded but she was likely the last of the Lapwings.

For Heron‘s memory, the Navy passed on her name to two different mine countermeasures ships since WWII.

The first, the 136-foot USS Heron (MSC(O)-18/AMS-18/YMS-369), was renamed in 1947 and went on to win 8 battlestars in Korea before serving in the Japanese Self Defense Forces as JDS Nuwajima (MSC-657) until 1967.

The second and, as of now final, U.S. Navy ship with the historic name, USS Heron (MHC-52) was an Osprey-class coastal minehunter commissioned in 1994 and transferred while still in her prime to Greece in 2007 as Kalipso.

But that’s another story.

Specs:

Lapwing_class__schematic

Displacement: 950 tons FL (1918) 1,350 tons (1936)
Length: 187 feet 10 inches
Beam: 35 feet 6 inches
Draft: 9 feet 9 in
Propulsion: Two Babcock and Wilcox header boilers, one 1,400shp Harlan and Hollingsworth, vertical triple-expansion steam engine, one shaft.
Speed: 14 knots (26 km/h; 16 mph); 12~ by 1936.
Complement: 78 Officers and Enlisted as completed; Upto 85 by 1936
Armament: 2 Ă— 3-inch/23 single mounts as commissioned
(1930)
2 x 3″/50 DP singles
4 Lewis guns
(1944)
2 x 3″/50 DP singles
Several 20mm Oerlikons and M2 12.7mm mounts

If you liked this column, please consider joining the International Naval Research Organization (INRO), Publishers of Warship International

They are possibly one of the best sources of naval study, images, and fellowship you can find http://www.warship.org/membership.htm

The International Naval Research Organization is a non-profit corporation dedicated to the encouragement of the study of naval vessels and their histories, principally in the era of iron and steel warships (about 1860 to date). Its purpose is to provide information and a means of contact for those interested in warships.

Nearing their 50th Anniversary, Warship International, the written tome of the INRO has published hundreds of articles, most of which are unique in their sweep and subject.

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I’m a member, so should you be!

Is that a banana torpedo in your shed, or are you just happy to see me?

One funny looking crab pot

One funny looking crab pot

A Kongsberg Remus model UUV operated by Boeing conducting ‘sonar tests’ for the Big Blue popped up by a waterman’s boat in the Chesapeake so guess what he did…

From the Baltimore Sun:

“It was super foggy the day they discovered this thing,” Laurie Haas said. “They almost hit it with the boat.

“They didn’t know what it was because it was such a bright color yellow.”

Figuring the object was valuable, the crew pulled it onto their boat to see if they could reunite it with its owner. Davis Haas stashed the drone in his shed back home.

“I couldn’t wait to see it when I got home,” Laurie Haas said. “This was the catch of a lifetime.”

Of course Boeing chopped chopped over to them when they found out.

Here’s pictures of a Slocum Glider and a Sea Lion that I came in contact with a couple years back. They are marked up pretty good with ‘If found’ labels.

DSCN2479 DSCN2475 DSCN2482

 

EOD dances with the Iver 3 in the Persian Gulf

One of the more quiet entries into harbor and coastal mine clearing that the Navy has been working on besides the more high profile RMS as used by the LCS, is devices like Ocean Server’s Iver 3 unmanned underwater vehicle.

Ocean Server's Iver 3 unmanned underwater vehicle. Iver 3 unmanned underwater vehicle
Specs:
Standard Length: 60-85 inches depending on instrumentation package
• Base weight (standard vehicle) <85 lbs man-portable.
• Extended Range DVL options for 80 plus meter bottom lock and ADCP
• 100m depth rating (deeper options available)
• 8-14 hours endurance at speed of 2.5 knots (configuration dependent)
• 1-4 knots speed range using Smart Motor: 48 V DC servo controlled motor with speed feedback
• GPS/Wifi (802.11n Ethernet standard) Fixed Antenna mast with LED for visual location and integrated satellite based augmentation system reception capability (Iridium and Acomms optional)
• Swappable Battery Section (Eight 98 Whr Battery Packs for 760 Watt-hour capacity)
• Single Dual Core 1.6 GHz Intel Atom Low Power CPU with Windows Embedded
• 256 GB Solid State Drive for Operation & Data Storage
• Removable flash drive for immediate access to sonar records (USB2) and data transfer for mission planning while on deck
• Integrated WiFi Hub for rapid data movement
• World Class Sonar Options (L3 Klein, EdgeTech, StarFish..etc) including OceanServer’s rapid assessment tools to create GeoTiff images of side scan records and KMZ files for Google Earth
• Built for continuous operation, virtually maintenance free, intuitive operation and mission planning in minutes

Explosive Ordnance Disposal Technician 2nd Class Ryan Bejar, assigned to Commander, Task Group (CTG) 56.1, talks about his experience with the Iver 3 unmanned underwater vehicle and its importance to the Navy EOD community at CTG 56.1 in Manama, Bahrain, July 6, 2015. Also available in high definition. (U.S. Navy video by Mass Communication Specialist 2nd Class Arthurgwain L. Marquez/Released)

Infamous French frogman says I’m sorry

In 1955, the humble 131-foot fishing trawler Sir William Hardy was launched in Scotland and soon found herself in the service of the UK Ministry of Agriculture, Fisheries and Food board for twenty years until she was no longer economically viable. Then she was sold to a group of peacenik save the whales types for $57,000 in 1978 (about $250,000 in today’s money), probably more than what she was worth.

Rechristened Rainbow Warrior, she went on to cause seven years of heartburn for the Spanish, Japanese and the French (more on this later).

Well, the latter held a grudge for the group protesting their nuclear tests at Moruroa in French Polynesia in 1985 and launched Opération Satanique (talk about sweet op names). This amounted to two DGSE agents visiting the ship in New Zealand undercover as peaceniks for the purpose of intel which another two agents (Dominique Prieur and Alain Mafart), trained combat swimmers, placing two limpet mines on the hull of the trawler over the engine room that they were reasonably sure would be unmanned at 11:30 at night.

Rainbow Warrior in Auckland Harbour after bombing by French secret service agents. (Annual review 1993-1994 page 2) Accession #: 0.85.072.001.01

Rainbow Warrior in Auckland Harbour after bombing by French secret service agents. (Annual review 1993-1994 page 2) Accession #: 0.85.072.001.01

Tragically, the ship took photographer Fernando Pereira down with her and the French were soon figured out when Kiwi investigators picked up Prieur and Mafart almost red-handed while ten of their support team made good their getaway.

warrior1

rainbow warrior

The pair served two years in jail and while France has never issued an apology, the leader of the op, Lt. Col. Jean Luc Kister, now retired, did this weekend, calling the strike overkill.

“For us it was just like using boxing gloves in order to crush a mosquito,” he said,” it was a disproportionate operation, but we had to obey the order, we were soldiers.”

Congress not impressed with LCS mine hunting program

Chief of Naval Operations Adm. Jonathan Greenert tours the Lockheed Martin undersea systems facilities in Riviera Beach. While there, Greenert viewed a littoral combat ship remote minehunting system test module and underwater autonomous vehicles. U.S. Navy photo by Chief Petty Officer Peter D. Lawlor

Chief of Naval Operations Adm. Jonathan Greenert tours the Lockheed Martin undersea systems facilities in Riviera Beach. While there, Greenert viewed a littoral combat ship remote minehunting system test module and underwater autonomous vehicles. U.S. Navy photo by Chief Petty Officer Peter D. Lawlor

The Littoral Combat Ship is a sausage program that was envisioned to replace the Navy’s diverse minehunters/sweepers, frigates and patrol craft with 50+ ships on a single hull that could do it all (after all, any ship can be a minesweeper once, right?) through a series of plug-and-play modules.

Remote Minehunting System (RMS) to be used on the LCS, in theory

Remote Minehunting System (RMS) to be used on the LCS, in theory

Well what we have almost 20 years into the program are two hulls (Freedom and Independence classes) that can do some of the same tasks as the frigates and patrol craft (except for ASuW or ASW against a modern opponent), but there’s a thing about that $706 million mine module program…

From USNI

At issue are recent reports on the reliability of a core component in the MCM package, the Remote Minehunting System (RMS) — comprised of the Raytheon AQS-20A towed array sonar and the Lockheed Martin remote multi-mission vehicle (RMMV).

The 7.25-ton semi-submersible RMMV — designed to deploy from the LCS and autonomously scout mines with the AQS-20A — in particular has had a history of persistent reliability problems.

SASC Chairman Sen. John McCain (R-Ariz.) and ranking member Sen. Jack Reed (D-R.I.) cite an early August memo signed by director of the Office of Test and Evaluation (DOT&E) Michael Gilmore that “assessed the current Remote Mine Hunting System and RMMV reliability as being 18.8 hours and 25.0 hours between mission failures… which is well below the Navy’s requirement of 75 hours” and that the Navy provided “no statistical evidence that the [system] is demonstrating improved reliability, and instead indicates that reliability plateaued nearly a decade ago.”

Worse, the Navy put their low-mileage Osprey-class coastal minehunter (with some hulls just being eight years old) on the chopping block back in 2007 (Taiwan, Egypt and Greece picked them up lighting fast) and is planning on retiring the Avenger-class mine sweepers and vaunted MH-53 Sea Dragon MCM helos in just a few years, making the LCS/MCM program “it” for U.S. Navy mine sweeping.

Doh

 

Warship Wednesday Aug 26, 2015: The Finnish Lighthouse Battleships

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, Aug 26, 2015: The Finnish Lighthouse Battleships

ilhm

Here we see the Väinämöinen-class panssarilaiva (“armored-ship”) FNS Ilmarinen of the Merivoimat (Finnish Navy) dropping it like its hot on some pesky Red Army positions in 1941. This big Baltic bruiser and her slightly older sister were a matter of Finnish pride from the 1920s through World War II– and gave the Russkies a far bit of heartburn at the same time.

In 1809 when the Russians carved the Duchy of Finland away from the Swedish Empire, Finland was largely left to their own bit, even being allowed to keep their local rule (the Diet), form their own army units, military academy, and a small navy (the Suomen Meriekipaasi)– the latter of which served well when the Brits came a calling in the Baltic during the Crimean War.

Well by 1878, Tsar Alexander II decided to Russify the Finns and implemented conscription into the segregated units of the Russian army, disbanded the navy, and a host of other measures that only ensured that by 1918, with the Tsars swept away, Finland broke free of St. Petersburg’s yoke.

They formed a new, independent Finnish Army (Maavoimat) and Navy (Merivoimat), fought a brief but brutal civil war against Bolshevik-backed Red Guards, and kept an eye peeled for the day when the Soviets decided to renegotiate the status of Finn sovereignty.

While the Merivoimat inherited a dozen or so small ex-Imperial Russian Navy gunboats, torpedo slingers and minesweepers left behind post-1918; as well as a corps of professional former mariners and officers to sail them, they needed some legit vessels if they expected to keep the Red Banner Fleet out.

They were in luck with the respect that in Turku there was a shipyard, Crichton-Vulcan, which had repaired Russian naval ships as well as constructed small boats. (The company later became Finnish mega yard Wärtsilä in 1936). In the mid-1920s the Germans were restricted from building certain military ships (um, U-boats, battleships, cruisers, you know, all the good stuff), but they struck a deal to build three small Vetehinen/Vesikko-class U-boats submarines at Crichton-Vulcan to improved WWI designs, which, though the ships never sailed for Germany, helped keep the flower of their submarine industry nurtured until 1933 when the gloves came off.

Therefore, in 1927 Parliament approved a plan to build two rather unique armored ships (panssarilaiva) as well as order some off-the-shelf motor torpedo boats from the UK to help round out their burgeoning fleet.

These two ships were laid down at Crichton-Vulcan within a month of each other in 1929.

Väinämöinen

Väinämöinen

Layout of the Väinämöinen class

Layout of the Väinämöinen class

Weighing in at 3,900 tons and with a 305-foot long hull, today these ships would be considered a frigate. At the time, the size made them either large destroyers or small cruisers.

finn battleship 2

However, unlike either of those types, these ships were glacially slow, with a top speed of just 14 knots on their good German-supplied Krupp engines. Further, they could only keep this speed up for a few days as they carried only enough fuel oil to make it 300~ miles away from port before they had to turn back for more.

Different guns of Väinämöinen nicely visible: the huge 254 mm main guns, 105 mm multi-purpose guns and 40 mm Vickers AA guns.

Different guns of Väinämöinen nicely visible: the huge 254 mm main guns, 105 mm multi-purpose guns, and 40 mm Vickers AA guns.

But that’s OK because they weren’t designed to run or to chase down ships on the high seas, these ships were designed to lurk in 15 feet of shallow water close to Finland’s craggy coastline, and plaster approaching Red Navy amphibious assaults or Red Army troops ashore.

They were given four 254mm/45cal Bofors guns (if you do the math, those are 10-inch guns there, homie!). These big guys could hurl a 496-pound AP shell at a rate of 2-3 per minute per tube out to 33,140 yards.

Via Navweaps

Via Navweaps

Via Navweaps

Via Navweaps

In effect, allowing one of these destroyer-sized ships to blast off a dozen sumo-wrestler-sized shells in the first 60 seconds of an engagement.

The two twin 10-inch turrets were augmented by eight 105mm/50cal. Bofors DP guns in four turrets that could coat either shore or airborne targets with 15 rounds per minute per tube, allowing 120 55.6-pound shells to rip out from the ship in 60 seconds.

WNFIN_41-50_m1932_front_pic

These had a range of land targets to 19,900 yards and could reach as high as 40,000 feet to pluck random enemy aircraft down.

A very tall centerline fire direction center/tower directed the fall of shot, giving these two ships an instantly recognizable silhouette.

Väinämöinen Photo colorized by irootoko_jr http://blog.livedoor.jp/irootoko_jr/

Väinämöinen Photo colorized by irootoko_jr

Class leader Väinämöinen was commissioned on 28 December 1932 while follow-on sister Ilmarinen was commissioned in 1934.

Prior to WWII, the two ships sailed the summer months around the idyllic waters of the Eastern Baltic and wintered near the shipyard at Turku when the ice came, then hit repeat.

With Mannerheim aboard

With Mannerheim aboard

A great view over the front of the bow from above the rangefinder

A great view over the front of the bow from above the rangefinder

They took part in the fleet parade at Spithead, where they participated in the festivities for the coronation of King George VI-- but had to be towed due most of the way due to their short legs

They took part in the fleet parade at Spithead, where they participated in the festivities for the coronation of King George VI– but had to be towed due most of the way due to their short legs

When the Soviets picked a fight that led to the Winter War of 1939-40, the two ships sailed to secure the Ahland Islands between Finland and Sweden but were soon forced back to port with the coming winter.

daea0b93d55764ce1578b94ef88cd96a finn battleship

While in Turku, the ships, whitewashed as camouflage and powered by shorelines to prevent exhaust from giving them away, fought off a number of Soviet bomber attacks, receiving slight damage.

Finnish coastal defense ship Ilmarinen anchored at Turku harbor, Finland, 10 Mar 1940

Finnish coastal defense ship Ilmarinen anchored at Turku harbor, Finland, 10 Mar 1940

When Finland came into World War II proper against the Soviets in 1941, both ships proved very active in supporting advancing troops ashore.

However, Ilmarinen soon ran into trouble when, accompanying a German fleet to seize Soviet-held islands off Estonia, struck a sea mine on 13 September 1941 and sank with heavy loss of life, some two-thirds of her crew in all.

Soviet propaganda poster of the sinking of the Finnish battleship Ilmarinen but is labeled Väinämöinen 

Väinämöinen had a more charmed existence, patrolling the Gulf of Finland with a force of patrol boats and minelayers and waiting for an eventual Soviet naval thrust that never came.

These ships camo'd well. Photo colorized by irootoko_jr http://blog.livedoor.jp/irootoko_jr/

These ships camo’d well. Photo colorized by irootoko_jr

The Reds did not forget the big V, however, and demanded she be turned over as reparations after the war, to which the Finnish Navy reluctantly agreed, handing the proud ship to her new communist masters on 29 May 1947.

vain va

Renamed Viborg after the Russian name for the Finnish city of Viipuri seized by the Soviets in 1944 and still part of Russia, the ship served the Baltic Fleet for two decades until she was scrapped in Leningrad.

As for Ilmarinen, she was discovered off Estonia in 230 feet of water, turned turtle but otherwise intact. If you speak Finnish, there is a very interesting documentary about her discovery, here.

Specs

lopull

Displacement: 3,900 t
Length: 305 feet
Beam: 55.5 feet
Draught: 14.5 feet
Propulsion: Diesel-Electric “Leonard System” powertrain, four Krupp engines 875 kW, two shafts, 3,500 kW (4,800 hp)
Speed: 14.5 kt (15.5 on trials)
Range: 700 nm on 93 tons of fuel oil
Complement: 403 (September 11, 1941)
Armament design:
4Ă—254mm/45cal. Bofors (2Ă—2)
8Ă—105mm/50cal. Bofors DP (4Ă—2)
4Ă—40mm/40cal. Vickers AA (4Ă—1)
2Ă—20mm/60cal. Madsen AA (2Ă—1)
1941:
4Ă—254mm/45cal. Bofors (2Ă—2)
8Ă—105mm/50cal. Bofors DP (4Ă—2)
4Ă—40mm/56cal. Bofors AA M/36S (1Ă—2, 2Ă—1)
4Ă—20mm/60cal. Madsen AA (4Ă—1)
1944
4 Ă— 254 mm/45cal. Bofors
8 Ă— 105 mm/50cal. Bofors
4 Ă— 40 mm/56cal. Bofors M/36
8 Ă— 20 mm/60cal. Madsen

If you liked this column, please consider joining the International Naval Research Organization (INRO), Publishers of Warship International

They are possibly one of the best sources of naval study, images, and fellowship you can find http://www.warship.org/

The International Naval Research Organization is a non-profit corporation dedicated to the encouragement of the study of naval vessels and their histories, principally in the era of iron and steel warships (about 1860 to date). Its purpose is to provide information and a means of contact for those interested in warships.

Nearing their 50th Anniversary, Warship International, the written tome of the INRO has published hundreds of articles, most of which are unique in their sweep and subject.

I’m a member, so should you be!

Warship Wednesday Aug 12, His Majesty’s Frozen U-boat Busting Bulldog

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, Aug 12, His Majesty’s Frozen U-boat Busting Bulldog

varristant 1942 at a bouy png

Here we see the modified V-class destroyer HMS Vansittart (D64) of the Royal Navy tied to a buoy in 1943. The hardy ship was a member of a huge group of WWI-era British tin cans that pulled yeoman service in the twilight of their lives.

In 1916, the Admiralty was in dire need of as many destroyers as they could find to fight the ever-growing U-boat menace that threatened to cut the British Isles off and hand victory to the Kaiser. This led to a crash emergency order of up to 107 Admiralty V-class flotilla leaders.

The Brit’s previous design– the 275-foot/1,075-ton S-class– mounted three 4-inch popguns, a pair of 18-inch torpedo tubes and could make 36 knots on two boilers. Well, the new V-boats were much larger at 312-feet/1,360-tons, higher to allow for a large wireless suite, needed three boilers, but upped the armament to a quartet of QF 4 in Mk.V mounts and 3 21 inch torpedo tubes a triple tube arrangement.

The first ship, Valentine, was laid down in August and completed just seven months later. By the end of the war, these hardy boats numbered some 67 hulls afloat and the remaining 40 were canceled.

Now enter the subject of our tale: HMS Vansittart (D64).

Laid down at William Beardmore and Company, Dalmuir, on New Year’s Day 1918 (no holidays off during wartime) she was completed after the war and only commissioned 5 November 1919.

Built to a modified W-class design, she shipped 1,550-tons largely due to her heavier suite of 4 x BL 4.7 in (120-mm) Mk.I guns, each capable of firing a 50-pound semi-armor piercing shell to 14,450 meters and a full half-dozen torpedo tubes rather than the original trio.

Vansittart served with the 4th Destroyer Flotilla and the Mediterranean squadrons then was laid up in 1925 due to the overall draw-down of the RN in those lean years. For the next 14 years, she was part of the Maintenance Reserve at Rosyth, staffed by reservists occasionally on summer training, and was reactivated in August 1939 as the drumbeat of a new war called.

By September 12, she was part of the 15th Destroyer Flotilla and serving on convoy duty in the Channel, protecting the BEF crossing into Europe. Next, Vansittart shipped to Norway and took part in the pivotal destroyer clash that was the Battle of Narvik, where she was damaged by German aircraft, then promptly returned to convoy duty and the evacuation of Rotterdam in May.

On 1 Jul 1940, as Britain stood alone in the War, she took out German Type VIIB U-boat U-102 in the North Atlantic south-west of Ireland, in position 48°33’N, 10°26’E, by 11 depth charges then proceeded to pick up 26 survivors from the British merchant Clearton, U-102′s last victim.

U-102 took all 43 hands including Kptlt. Harro von Klot-Heydenfeldt to the bottom.

Vansittart at the time had a very photogenic mascot.

A bulldog named Venus stands at the helm of the HMS Vansittart, a British Destroyer, c.1941

A bulldog named Venus stands at the helm of the HMS Vansittart, a British Destroyer, c.1941

Venus was one god looking pooch

Venus was one god looking pooch

More gratuitous Venus

More gratuitous Venus

1941 saw Vansittart assisting in mine laying operations off the French coast and spending a few days in May searching for SMS Bismarck.

She was adopted by the town of Kidderminster during the Warship Week National Savings drive in December 1941. The RN got their money’s worth out of the Great War-era ship, later allowing Hereford to adopt the old girl as well in the war.

THE MAYOR OF KIDDERMINISTER, ALDERMAN O W DAVIES, VISITS HMS VANSITTART - THE TOWN'S ADOPTED SHIP. 11 JUNE 1942 IWM photo A 10786

THE MAYOR OF KIDDERMINSTER, ALDERMAN O W DAVIES, VISITS HMS VANSITTART – THE TOWN’S ADOPTED SHIP. 11 JUNE 1942 IWM photo A 10786 (The officer shaking hands with the mayor of Kidderminster is Lt Cdr Thomas Johnston DSC, who captained HMS Vansittart from 1942 to 43 including the relief of Malta)

In February 1942, she reported to Gibraltar and took part in the epic resupply convoys to besieged Malta including Operation Pedestal where she helped screen HMS Eagle from both air and submarine attacks.

By 1943, she was undergoing a six-month refit at Middleborough from which she emerged with a more potent AAA defense, and traded in half her torpedo tubes for more ASW weapons, but restricted to just 25 knots.

Photo09ddVansittart1CH

This put her back to escorting merchant convoys in the Atlantic for the rest of the war, including some very hard service in the ice zones.

Chipping away ice on the deck of H.M.S. Vansittart on convoy escort duty in the Arctic

Chipping away ice on the deck of H.M.S. Vansittart on convoy escort duty in the Arctic

Chipping away ice on the deck of H.M.S. Vansittart on convoy escort duty in the Arctic feb 1943

Soon after VE Day, unneeded for the war in the Pacific, she was placed up for disposal along with the rest of the ships of her class still in the Atlantic.

As a whole, these hardy little ships gave their full measure, with many going down fighting.

One, Vehement, was lost to a mine in the North Sea in 1918. Two others, Verulam and Vittoria were lost to the Bolsheviks in the Baltic in 1919, and 9 would go on to meet their end at the hands of Axis forces in WWII.

At least 35 of the class survived the war only to be unceremoniously paid off and sold to the breakers between 1945 and 1948. The last afloat, the Australian-manned HMAS Vendetta (D69), was scuttled off Sydney on 2 July 1948.

The hero of our story is not immune to this fate, being sold to BISCO for scrap on 25 February 1946.

She is remembered on a .26 Euro stamp issued to commemorate the 70th anniversary of the Malta run.

S12080064

Specs:

Image via Shipbucket http://www.shipbucket.com/images.php?dir=Real%20Designs/Great%20Britain/DD%20D64%20Vansittart.png

Click to big up. Image via Shipbucket

Displacement: 1,140 tons standard, 1,550 tons full
Length: 300 ft. o/a, 312 ft. p/p
Beam: 30 ft.
Draught: 10 ft. 11 in
Propulsion: 3 Yarrow type Water-tube boilers, Brown-Curtis steam turbines, 2 shafts, 27,000 shp
Speed: 34 kn
Reduced to 25 kn 1943
Range: 320-370 tons of oil
3,500 nmi at 15 kn
900 nmi at 32 kn
Complement: 111 as designed, 150 by 1943
Type 271 surface warning Radar fitted 1942
Armament: As-built 1920:
• 4 x BL 4.7 in (120-mm) Mk.I guns mount P Mk.I
• 2 x QF 2 pdr Mk.II “pom-pom” (40 mm L/39)
• 6 × 21-inch Torpedo Tubes
1943 LRE conversion:
• 3 × BL 4.7 in (120mm) Mk.I L/45 guns
• 1 × QF 12 pounder 12 cwt naval gun
• 2 Ă— QF 2 pdr Mk.II “pom-pom” (40 mm L/39)
• 2 × 20mm Orkelion cannons
• 3 × 21-inch Torpedo Tubes (one triple mount)
• 2 × depth charge racks
• Hedgehog anti-submarine mortar

If you liked this column, please consider joining the International Naval Research Organization (INRO), Publishers of Warship International

They are possibly one of the best sources of naval study, images, and fellowship you can find http://www.warship.org/

The International Naval Research Organization is a non-profit corporation dedicated to the encouragement of the study of naval vessels and their histories, principally in the era of iron and steel warships (about 1860 to date). Its purpose is to provide information and a means of contact for those interested in warships.

Nearing their 50th Anniversary, Warship International, the written tome of the INRO has published hundreds of articles, most of which are unique in their sweep and subject.

I’m a member, so should you be!

Ingalls making progress on their new SDV

Swimmer Deliver Vehicles (SDVs) are the unsung heroes of littoral covert naval action. Its that “covert” part that keeps them that way. News of them rarely eeks out and when it does its normally bad as most of the “good” stuff is classified.

Well about that.

usg_page_top

HII recently put out a presser on their prototype Proteus dual-mode underwater vehicle (DMUV). That’s a submersible able to operate as a conventional manned swimmer delivery vehicle (SDV) and as an unmanned undersea vehicle (UUV), which gives the warfighter a bunch of neato options that the old X-boat and Chariot drivers of WWII would have loved.

usg_divers

The news is that two females, Chloe Mallet, an ocean engineer, and Andrea Raff, a mechanical engineer, have now been certed to drive Proteus.

 

20150602_134425+(2)_bc3ce9e7-c172-4566-af48-ca1e4a06c9ce-prvMallet and Raff are the only two women on the seven-person dive team that works with Proteus.

When in use in the manned mode, the vehicle is flooded with water and can submerge to depths up to 150 feet, weighs 8,240 pounds, is 25.8 feet long (the Navy’s DSS has an inside dimension of 26 feet) can carry almost 2-tons of cargo and uses a 300kHz Multi-Beam Sonar to keep her steady and away from undersea collisions while traveling at 10 knots.

So if you are around Panama City where all the small boat secret squirrels live, and see a 25.8 foot whale in the water, now you know.
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