German submarine U-792

History
Nazi Germany
Name:	U-792
Ordered:	7 August 1942
Builder:	Blohm & Voss, Hamburg
Yard number:	707
Laid down:	1 December 1942
Launched:	28 September 1943
Commissioned:	16 November 1943
Fate:	Scuttled on 4 May 1945
General characteristics
Class and type:	Type XVIIA submarine
Displacement:	277 t (273 long tons) surfaced 309 t (304 long tons) submerged 373 t (367 long tons) total
Length:	39.05 m (128 ft 1 in) o/a 26.15 m (85 ft 10 in) pressure hull
Beam:	4.50 m (14 ft 9 in) o/a 3.30 m (10 ft 10 in) pressure hull
Draught:	4.30 m (14 ft 1 in)
Propulsion:	1 × Deutz SAA SM517 supercharged 8-cylinder diesel engine, 210 PS (210 shp; 150 kW) 1 × AEG Maschine AWT98 electric motor, 77 PS (76 shp; 57 kW) 2 × Walter gas turbines, 5,000 PS (4,900 shp; 3,700 kW) 1 shaft
Speed:	9 knots (17 km/h; 10 mph) surfaced 5 knots (9.3 km/h; 5.8 mph) submerged (electric drive) 25 knots (46 km/h; 29 mph) submerged (HTP drive)
Range:	2,910 nmi (5,390 km; 3,350 mi) at 8.5 knots (15.7 km/h; 9.8 mph) surfaced 50 nmi (93 km; 58 mi) at 2 knots (3.7 km/h; 2.3 mph) submerged (electric drive) 127 nmi (235 km; 146 mi) at 20 knots (37 km/h; 23 mph) submerged (HTP drive)
Complement:	12
Armament:	2 × 53.3 cm (21 in) torpedo tubes (bow) 4 × torpedoes
Service record
Part of:	5th U-boat Flotilla (Trial boat) 16 November 1943 – 30 November 1943 8th U-boat Flotilla (Trial boat) 1 December 1943 – 15 February 1945 5th U-boat Flotilla (Trial boat) 16 February 1945 – 4 May 1945
Commanders:	Oberleutnant zur See Horst Heitz 16 November 1943 – December 1944 Oberleutnant zur See Hans Diederich Duis December 1944 – 4 May 1945
Operations:	No Patrols
Victories:	None

U-792 was a Type XVIIA U-boat of Nazi Germany's Kriegsmarine during the Second World War. She was one of a small number of U-boats fitted with Hellmuth Walter's high test peroxide propulsion system, which offered a combination of air-independent propulsion and high submerged speeds. She spent the war as a trials vessel and was scuttled on 4 May 1945 in the Audorfer See, near Rendsburg.

The U-792 was laid down on 1 December 1942 at the Blohm & Voss shipyard in Hamburg, Germany. She was launched on 28 September 1943 and commissioned on 16 November 1943 under the command of Oberleutnant zur See Horst Heitz.

When she was completed, the submarine was 39.05 metres (128 ft 1 in) long overall, with a beam of 4.50 metres (14 ft 9 in) and a draught of 4.30 metres (14 ft 1 in). She was assessed at 309 t (304 long tons) submerged. The submarine was powered by one Deutz SAA SM517 supercharged 8-cylinder four-stroke diesel engine producing a total of 210 metric horsepower (150 kW; 210 shp) for use while surfaced and two Walter gas turbines producing a total of 5,000 metric horsepower (3,700 kW; 4,900 shp) for use while submerged. She had one shaft and one 1.23 m (4 ft) propeller. The submarine had a maximum surface speed of 9 knots (17 km/h; 10 mph) and a maximum submerged speed of 25 knots (46 km/h; 29 mph) when submerged, the U-boat could operate for 127 nautical miles (235 km; 146 mi) at 20 knots (37 km/h; 23 mph) and when surfaced, she could travel 1.840 nautical miles (3.408 km; 2.117 mi) at 9 knots (17 km/h; 10 mph).

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