The Type VIIF boats were designed in 1941 as supply boats to rearm U-boats at sea once they had used up their torpedoes. This required a lengthened hull and they were the largest and heaviest type VII boats built. They were armed identically with the other Type VIIs except that they could have up to 39 torpedoes onboard and had no deck guns.
Only four Type VIIFs were built. Two of them, U-1062 and U-1059, were sent to support the Monsun Gruppe in the Far East; U-1060 and U-1061 remained in the Atlantic. Type VIIF U-boats used the same engines as the Type VIID class. Three were sunk during the war, the last was scuttled after the war along with the majority of the surrendered U boats.
Displacement:
1,084 tonnes (1,067 long tons) surfaced
1,181 t (1,162 long tons) submerged
Length:
77.63 m (254 ft 8 in) o/a
60.40 m (198 ft 2 in) pressure hull
Beam:
7.30 m (23 ft 11 in) o/a
4.70 m (15 ft 5 in) pressure hull
Height: 9.60 m (31 ft 6 in)
Draught: 4.91 m (16 ft 1 in)
Installed power:
2,800–3,200 PS (2,100–2,400 kW; 2,800–3,200 bhp) (diesels)
750 PS (550 kW; 740 shp) (electric)
Propulsion:
2 shafts; 2 × diesel engines
2 × electric motors
Speed: 16.9–17.6 knots (31.3–32.6 km/h; 19.4–20.3 mph) surfaced
Range:
14,700 nmi (27,200 km; 16,900 mi) at 10 knots (19 km/h; 12 mph) surfaced
75 nmi (139 km; 86 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth:
200 m (660 ft)
Calculated crush depth: 220–240 m (720–790 ft)
Crew: 4 officers, 42 enlisted
Armament:
5 × 53.3 cm (21 in) torpedo tubes (4 bow, 1 stern)
14 × torpedoes or up to 40 in transport role
1 × 3.7 centimetres (1.5 in) SK C/30 anti-aircraft gun (1,195 rounds)
2 × 2 centimetres (0.79 in) Flak anti-aircraft guns (4,380 rounds)
Part of: 5th U-boat Flotilla
19 June–31 December 1943
1 January–30 September 1944
Commanders: Oblt.z.S. Karl Albrecht
19 June 1943 – 30 September 1944
Operations: 1st patrol: 18 December 1943 – 19 April 1944
2nd patrol: 15 July – 30 September 1944
Victories: None
U-1062 left Kiel on 18 December 1943, arriving at Bergen on 24 December, where she remained until 3 January 1944, when she sailed for Penang, arriving on 19 April, loaded with spare torpedoes for the Monsun Gruppe. She left Penang on 15 July to return to Germany, but was intercepted on 30 September by a hunter-killer group based around the escort carrier USS Mission Bay (CVE-59) in the Central Atlantic, WSW of the Cape Verde Islands. U-1062 was sunk with all hands at 11°36′N 34°44′W by depth charges from the destroyer escort USS Fessenden.
By www.wikipedia.org
Destroyer Escort USS Fessenden.
CVE Mission Bay underway in the Atlantic. Photo by Robert Hurst http://www.navsource.org/archives/03/0305901.jpg