Английская Википедия:German submarine U-546

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Шаблон:Infobox ship imageШаблон:Infobox ship careerШаблон:Infobox ship characteristicsШаблон:Infobox service record

Файл:U-546 survivor on USS Bogue.jpg

U-546 survivor on USS Bogue

German submarine U-546 was a Type IXC/40 U-boat operated by Nazi Germany's Kriegsmarine during World War II. She was laid down at the Deutsche Werft in Hamburg as yard number 367 on 6 August 1942, launched on 17 March 1943 and commissioned on 2 June 1943 under Oberleutnant zur See Paul Just. The U-boat was a member of three wolfpacks.

U-546 was responsible for the last combat sinking of a United States Navy vessel in the Atlantic Theatre, during Operation Teardrop. On 24 April 1945 U-546 sank the destroyer escort Шаблон:USS, but was in turn sunk by combined fire of five other US destroyers. Her captain and most of her crew were rescued by US vessels, and taken to Argentia Naval Station. It was from this crew that the USN eventually learned that no V-1/2 attacks from the U-boats were planned by the Kriegsmarine.

Design

German Type IXC/40 submarines were slightly larger than the original Type IXCs. U-546 had a displacement of Шаблон:Convert when at the surface and Шаблон:Convert while submerged.Шаблон:Sfn The U-boat had a total length of Шаблон:Convert, a pressure hull length of Шаблон:Convert, a beam of Шаблон:Convert, a height of Шаблон:Convert, and a draught of Шаблон:Convert. The submarine was powered by two MAN M 9 V 40/46 supercharged four-stroke, nine-cylinder diesel engines producing a total of Шаблон:Convert for use while surfaced, two Siemens-Schuckert 2 GU 345/34 double-acting electric motors producing a total of Шаблон:Convert for use while submerged. She had two shafts and two Шаблон:Convert propellers. The boat was capable of operating at depths of up to Шаблон:Convert.Шаблон:Sfn

The submarine had a maximum surface speed of Шаблон:Convert and a maximum submerged speed of Шаблон:Convert.Шаблон:Sfn When submerged, the boat could operate for Шаблон:Convert at Шаблон:Convert; when surfaced, she could travel Шаблон:Convert at Шаблон:Convert. U-546 was fitted with six Шаблон:Convert torpedo tubes (four fitted at the bow and two at the stern), 22 torpedoes, one [[10.5 cm SK C/32 naval gun|Шаблон:Convert SK C/32 naval gun]], 180 rounds, and a [[3.7 cm SK C/30|Шаблон:Convert SK C/30]] as well as a [[2 cm FlaK 30|Шаблон:Convert C/30]] anti-aircraft gun. The boat had a complement of forty-eight.Шаблон:Sfn

Sensors

Radar

U-546 was one of the few U-boats that was fitted with a FuMO 61 Hohentwiel U Radar Transmitter. It was installed on the starboard side of the conning tower.

• FuMO-61 Hohentwiel U Radar Transmitter

  FuMO-61 Hohentwiel U Radar Transmitter

Radar Detection

U-546 was fixed with the FuMB-26 Tunis antenne. The FuMB 26 Tunis combined the FuMB Ant. 24 Fliege and FuMB Ant. 25 Cuba II antennas. It could be mounted in either the Direction Finder Antenna Loop and separately on the bridge.

• FuMB-26 Tunis Radar Detection.

  FuMB-26 Tunis Radar Detection.

Service history

She commenced her training on 2 June 1943, making her first silent run at Sønderborg, she remained with the 4th U-boat Flotilla (training) at Stettin until 31 December 1943. She completed her training with a voyage from Hela to Swinemünde to practice A.A. cannon fire.

First patrol

The boat was reassigned to the 10th U-boat Flotilla for combat duties in the Atlantic on 1 January 1944, departing Kiel on 22 January 1944, with a three-day stopover at Marvika in Norway. After forming up with the Gruppe Igel 1 (Group Hedgehog) north-west of Scotland on 3 February 1944, U-546 commenced a patrol in the North Atlantic with other boats to the west of Ireland on anti-convoy duties. At 12:29 on 16 February U-546 reported she had been attacked by a British Sunderland flying boat from No. 201 Squadron RAF, killing one crewman. On 20 February 1944 she was again attacked by an aircraft. On 17 April while returning to base in France, the U-boat was caught on the surface by a Leigh light -equipped Liberator of 53 Squadron in the Bay of Biscay, steaming south-east, ahead of convoy HX 278 and was attacked with depth charges, but ended up shooting down the attacker with the 3.7 cm gun. She returned to Lorient for service and refit on 23 or 25 April 1944. The crew was given leave while the boat was overhauled and the Schnorchel was fitted.

Second patrol

Leaving her base again on 15 June 1944 for her second patrol to the African Gold Coast, she was detected by a USN anti-submarine patrol, which begun to hunt her. She soon had to abort her patrol and was ordered to return to Germany after the invasion of Normandy. On 18 June 1944 U-546 was attacked, again by a Sunderland, which was not equipped with radar. The boat then briefly returned to France on 22 June to replenish her cannon ammunition, sailing again on 25 June. On 20 July 1944 she was detected by USN surface ships forming the escort for an escort carrier; U-546 fired a torpedo at the carrier, but missed and was subjected to three hours of depth charge attacks from the escort destroyers. She managed to escape this attack. U-546 was then ordered to patrol a zone near Cape Verde where she operated for about four weeks, attacking a convoy with a spread of three torpedoes, but scoring no hits.

During the second patrol due to fuel shortages the captain achieved significant fuel saving and extended the cruise to 150 days (the boat's longest patrol), by floating submerged for days on water-layers with all engines stopped. The boat returned to base with 30 metric tons of fuel left.

Third patrol

On 10 November 1944 U-546 was reassigned to the 33rd U-boat Flotilla based at Flensburg, where she received a 14-day overhaul, eventually departing Kristiansand in Norway, on 2 March 1945. The boat proceeded to the eastern coast of North America on 10 March 1945 with six companions. In mid-April the group was ordered to commence operations individually. On 23 April the submarine was spotted surfacing north-west of the Azores by aircraft from Шаблон:USS as part of Operation Teardrop. The planes were looking for U-boats carrying V-1 flying bombs and V-2 rockets, which intelligence suggested were going to be used to attack American cities. Depth charges were dropped just after the boat submerged, but failed to damage her hull.

Sinking

Файл:U-546 survivors.jpg

Survivors of the sinking of U-546 in a life raft just before being rescued

On 24 April 1945, U-546 made contact with the destroyer escort Шаблон:USS and proceeded to attack, firing a stern torpedo. The destroyer turned into it and was hit, which tore the DE apart and sent her down with heavy loss of life.

The U-boat was in turn pursued by other destroyer escorts; Шаблон:USS, Шаблон:USS, Шаблон:USS, Шаблон:USS, Шаблон:USS, Шаблон:USS , Шаблон:USS, and Шаблон:USS. Neunzer and Шаблон:USS conducted a search while Pillsbury circled the area and Flaherty picked up survivors. Flaherty made contact in less than an hour and with Pillsbury proceeded to attack. The U-boat went to Шаблон:Convert. Contact was lost from 10:45 until 12:01 when Varian, Janssen and Hubbard began another attack. Neunzer got into the fight after several attacks by the other DE's, delivering a creeping attack with Varian and Hubbard while Chatelain directed. Contact was lost once more at about 16:00, so Chatelain and Neunzer were ordered to return to the scouting line.

The line was expanded, the ships began a sweep through the area, determined to prevent the submarine's escape. Varian made contact once more at 17:31 and Flaherty was ordered to attack. She fired at 18:10. Four minutes later a small oil slick began coming to the surface. Flaherty made another Hedgehog attack at 18:28, and at 18:38 the U-boat broke the surface.

Every ship in the line within range began firing. At 18:44, after more than ten and a half hours of attacks, U-546 rolled under and sank (in position Шаблон:Coord, south-south-east of Cape Farewell, Greenland). Her captain and most of her crew were rescued by US vessels, and taken to Argentia Naval Station, Newfoundland. Eight of the surviving, captured crewmen of U-546 were tortured by US military personnel. Historian Philip K. Lundeberg has written that the beating and torture of U-546's survivors was a singular atrocity motivated by the interrogators' need to quickly get information on what the U.S. believed were potential cruise missile or ballistic missile attacks on the continental US by German submarines. The USN eventually learned that no V-1/2 attacks from the U-boats were planned by the Kriegsmarine.

Wolfpacks

U-546 took part in three wolfpacks, namely:

• Igel 1 (9 – 17 February 1944)
• Hai 1 (17 – 22 February 1944)
• Seewolf (14 – 24 April 1945)

Summary of raiding history

Date	Ship Name	Nationality	Tonnage	Fate
24 April 1945	Шаблон:USS	Шаблон:Navy	1,200	Sunk

Bibliography

• Шаблон:Cite book
• Шаблон:Cite book
• Шаблон:Cite book
• Y'Blood, William T., Hunter-killer : U.S. escort carriers in the Battle of the Atlantic, Naval Institute Press, Annapolis, 1983.
• Syrett, David, Failure at Sea: Wolf Pack Operations in the North Atlantic, 10 February-22 March 1944 "The Northern Mariner", V, No. 1 (January 1995), 33–43. [1]

Further reading

• Niestle, Axel, German U-Boat Losses During World War II. 1998.
• Blair, Clay, Hitler's U-boat War, 1996.
• Blair, Clay, Hitler's U-boat War, Vol II, 1998.
• Wynn, Kenneth, U-Boat Operations of the Second World War – Vol 1, 1998.
• Wynn, Kenneth, U-Boat Operations of the Second World War – Vol 2, 1998.
• Just, Paul, Vom Seeflieger zum U-Boot-Fahrer, 1982.
• Шаблон:Cite book

External links

• Шаблон:Cite web
• Шаблон:Cite web