German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-717 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged.[1] She had a total length of 67.10 m (220 ft 2 in), a pressure hull length of 50.50 m (165 ft 8 in), a beam of 6.20 m (20 ft 4 in), a height of 9.60 m (31 ft 6 in), and a draught of 4.74 m (15 ft 7 in). The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder superchargeddiesel engines producing a total of 2,800 to 3,200 metric horsepower (2,060 to 2,350 kW; 2,760 to 3,160 shp) for use while surfaced, two Garbe, Lahmeyer & Co. RP 137/c double-acting electric motors producing a total of 750 metric horsepower (550 kW; 740 shp) for use while submerged. She had two shafts and two 1.23 m (4 ft) propellers. The boat was capable of operating at depths of up to 230 metres (750 ft).[1]
The submarine had a maximum surface speed of 17.7 knots (32.8 km/h; 20.4 mph) and a maximum submerged speed of 7.6 knots (14.1 km/h; 8.7 mph).[1] When submerged, the boat could operate for 80 nautical miles (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 8,500 nautical miles (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph). U-717 was fitted with five 53.3 cm (21 in) torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.8 cm (3.46 in) SK C/35 naval gun, 220 rounds, and two twin 2 cm (0.79 in) C/30anti-aircraft guns. The boat had a complement of between forty-four and sixty.[1]
Busch, Rainer; Röll, Hans-Joachim (1999). German U-boat commanders of World War II: a biographical dictionary. Translated by Brooks, Geoffrey. London, Annapolis, Md: Greenhill Books, Naval Institute Press. ISBN1-55750-186-6.
Busch, Rainer; Röll, Hans-Joachim (1999). Deutsche U-Boot-Verluste von September 1939 bis Mai 1945 [German U-boat losses from September 1939 to May 1945]. Der U-Boot-Krieg (in German). Vol. IV. Hamburg, Berlin, Bonn: Mittler. ISBN3-8132-0514-2.
Gröner, Erich; Jung, Dieter; Maass, Martin (1991). U-boats and Mine Warfare Vessels. German Warships 1815–1945. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN0-85177-593-4.
External linksedit
Helgason, Guðmundur. "The Type VIIC boat U-717". German U-boats of WWII - uboat.net. Retrieved 23 July 2015.
german, submarine, type, viic, boat, nazi, germany, kriegsmarine, during, world, submarine, laid, down, april, 1942, stülcken, sohn, yard, hamburg, launched, february, 1943, commissioned, 1943, under, command, oberleutnant, siegfried, rothkirch, panthen, attac. German submarine U 717 was a Type VIIC U boat of Nazi Germany s Kriegsmarine during World War II The submarine was laid down on 24 April 1942 at the H C Stulcken Sohn yard at Hamburg launched on 20 February 1943 and commissioned on 19 May 1943 under the command of Oberleutnant zur See Siegfried von Rothkirch und Panthen Attached to 5th U boat Flotilla based at Kiel U 717 completed her training period on 31 July 1944 and was assigned to front line service HistoryNazi GermanyNameU 717Ordered10 April 1941BuilderH C Stulcken Sohn HamburgYard number783Laid down24 April 1942Launched20 February 1943Commissioned19 May 1943FateScuttled on 5 May 1945General characteristicsClass and typeType VIIC submarineDisplacement769 t 757 long tons surfaced 871 t 857 long tons submergedLength67 10 m 220 ft 2 in o a 50 50 m 165 ft 8 in pressure hull Beam6 20 m 20 ft 4 in o a 4 70 m 15 ft 5 in pressure hull Height9 60 m 31 ft 6 in Draught4 74 m 15 ft 7 in Installed power2 800 3 200 PS 2 100 2 400 kW 2 800 3 200 bhp diesels 750 PS 550 kW 740 shp electric Propulsion2 shafts 2 diesel engines 2 electric motorsSpeed17 7 knots 32 8 km h 20 4 mph surfaced 7 6 knots 14 1 km h 8 7 mph submergedRange8 500 nmi 15 700 km 9 800 mi at 10 knots 19 km h 12 mph surfaced 80 nmi 150 km 92 mi at 4 knots 7 4 km h 4 6 mph submergedTest depth230 m 750 ft Crush depth 250 295 m 820 968 ft Complement4 officers 40 56 enlistedArmament5 torpedo tubes four bow one stern 14 53 3 cm 21 in torpedoes or 26 TMA mines 1 8 8 cm 3 46 in deck gun 220 rounds 2 twin 2 cm 0 79 in C 30 anti aircraft gunsService recordPart of 5th U boat Flotilla 19 May 1943 31 July 1944 22nd U boat Flotilla 1 August 1943 31 July 1944 8th U boat Flotilla 1 August 1944 15 February 1945 5th U boat Flotilla 16 February 5 May 1945Identification codes M 52 559Commanders Oblt z S Siegfried von Rothkirch und Panthen 19 May 1943 5 May 1945Operations 5 patrols 1st patrol 16 19 August 1944 2nd patrol 21 August 1944 3rd patrol 26 31 August 1944 4th patrol 3 25 September 1944 5th patrol 30 September 17 October 1944Victories None Contents 1 Design 2 Service history 3 References 4 Bibliography 5 External linksDesign editGerman Type VIIC submarines were preceded by the shorter Type VIIB submarines U 717 had a displacement of 769 tonnes 757 long tons when at the surface and 871 tonnes 857 long tons while submerged 1 She had a total length of 67 10 m 220 ft 2 in a pressure hull length of 50 50 m 165 ft 8 in a beam of 6 20 m 20 ft 4 in a height of 9 60 m 31 ft 6 in and a draught of 4 74 m 15 ft 7 in The submarine was powered by two Germaniawerft F46 four stroke six cylinder supercharged diesel engines producing a total of 2 800 to 3 200 metric horsepower 2 060 to 2 350 kW 2 760 to 3 160 shp for use while surfaced two Garbe Lahmeyer amp Co RP 137 c double acting electric motors producing a total of 750 metric horsepower 550 kW 740 shp for use while submerged She had two shafts and two 1 23 m 4 ft propellers The boat was capable of operating at depths of up to 230 metres 750 ft 1 The submarine had a maximum surface speed of 17 7 knots 32 8 km h 20 4 mph and a maximum submerged speed of 7 6 knots 14 1 km h 8 7 mph 1 When submerged the boat could operate for 80 nautical miles 150 km 92 mi at 4 knots 7 4 km h 4 6 mph when surfaced she could travel 8 500 nautical miles 15 700 km 9 800 mi at 10 knots 19 km h 12 mph U 717 was fitted with five 53 3 cm 21 in torpedo tubes four fitted at the bow and one at the stern fourteen torpedoes one 8 8 cm 3 46 in SK C 35 naval gun 220 rounds and two twin 2 cm 0 79 in C 30 anti aircraft guns The boat had a complement of between forty four and sixty 1 Service history editIn the last days of World War II U 717 was scuttled with other U boats during Operation Regenbogen in Flensburg Firth on 5 May 1945 in position 54 49 N 9 27 E 54 817 N 9 450 E 54 817 9 450 2 References edit a b c d Groner 1991 pp 43 46 Busch amp Roll 1999 p 358 365 Bibliography editBusch Rainer Roll Hans Joachim 1999 German U boat commanders of World War II a biographical dictionary Translated by Brooks Geoffrey London Annapolis Md Greenhill Books Naval Institute Press ISBN 1 55750 186 6 Busch Rainer Roll Hans Joachim 1999 Deutsche U Boot Verluste von September 1939 bis Mai 1945 German U boat losses from September 1939 to May 1945 Der U Boot Krieg in German Vol IV Hamburg Berlin Bonn Mittler ISBN 3 8132 0514 2 Groner Erich Jung Dieter Maass Martin 1991 U boats and Mine Warfare Vessels German Warships 1815 1945 Vol 2 Translated by Thomas Keith Magowan Rachel London Conway Maritime Press ISBN 0 85177 593 4 External links editHelgason Gudmundur The Type VIIC boat U 717 German U boats of WWII uboat net Retrieved 23 July 2015 Portals nbsp Military of Germany nbsp World War II Retrieved from https en wikipedia org w index php title German submarine U 717 amp oldid 1172026220, wikipedia, wiki, book, books, library,
