German submarine U-802

German submarine U-802 was a Type IXC/40 U-boat built for Nazi Germany's Kriegsmarine during World War II.

Design
German Type IXC/40 submarines were slightly larger than the original Type IXCs. U-802 had a displacement of 1144 t when at the surface and 1257 t while submerged. The U-boat had a total length of 76.76 m, a pressure hull length of 58.75 m, a beam of 6.86 m, a height of 9.60 m, and a draught of 4.67 m. The submarine was powered by two MAN M 9 V 40/46 supercharged four-stroke, nine-cylinder diesel engines producing a total of 4400 PS for use while surfaced, two Siemens-Schuckert 2 GU 345/34 double-acting electric motors producing a total of 1000 shp for use while submerged. She had two shafts and two 1.92 m propellers. The boat was capable of operating at depths of up to 230 m.

The submarine had a maximum surface speed of 18.3 kn and a maximum submerged speed of 7.3 kn. When submerged, the boat could operate for 63 nmi at 4 kn; when surfaced, she could travel 13850 nmi at 10 kn. U-802 was fitted with six 53.3 cm torpedo tubes (four fitted at the bow and two at the stern), 22 torpedoes, one 10.5 cm SK C/32 naval gun, 180 rounds, and a 3.7 cm SK C/30 as well as a 2 cm C/30 anti-aircraft gun. The boat had a complement of forty-eight.

Service history
Laid down on 1 December 1941, U-802 was launched eleven months later on 31 October 1942. On 12 June 1943 the U-boat was commissioned into service under the command of Kapitänleutnant Rolf Steinhaus (Crew 36).

In September 1943, Kapitänleutnant Helmut Schmoeckel (Crew 36) joined the crew of U-802 as a trainee commander. Schmoeckel finally relieved Steinhaus and took command of U-802 on 12 December 1943. Transferring from 4th U-boat Flotilla to 2nd U-boat Flotilla.

First patrol
U-802 left base in Kiel on 29 January 1944 and after brief stops in Kristiansand and Stavanger she reached her assigned patrol area in the North Atlantic in mid-February. In late March and early April U-801 attacked several convoys, sinking the Canadian 1621 GRT steamer SS Watuka and possibly two more steamers from convoy SH 125 in 44.5°N, -62.85°W on 22 March 1944. In an attack on convoy HX 286 she claimed two more steamers of 10,000 GRT sunk or damaged respectively. On 2 May 1944 the U-boat arrived in Lorient.

Second patrol
U-802 set out from Lorient on her second patrol on 22 June 1944, but when her snorkel failed on 1 July, she made for port. After experiencing an air attack earlier that day, U-802 arrived back in Lorient on 9 July 1944.

Third patrol
On 16 July the U-boat left again for operations in the West and North Atlantic. In mid-August U-802 made contact with an aircraft carrier but did not attack, but claimed an escort, HMCS Stettler (K681), sunk on 14 September 1944. However, this was proved incorrect; HMCS Stettler survived the war. On 12 November 1944, she returned to base via Norway to Flensburg.

Fourth patrol
From Flensburg U-802 left again for the West Atlantic on 11 December 1944 to return to Kiel on 8 April 1945 after 118 days at sea. The last weeks of war in Europe U-802 spent in Norwegian waters.

Fate
Leaving Bergen on 3 May, U-802 arrived in Loch Eriboll on 11 May 1945 in order to surrender to the British. The U-boat was transferred to Loch Alsh the next day, and to Lisahally the day after that, where she remained until the end of the year. On 30 December 1945 U-802 left Moville under tow from HMS Pytchley (L92). At 12:30h the next day, 31 December 1945, the cable broke and U-802 sank at 55.5°N, -8.41667°W.