German submarine U-1017

German submarine U-1017 was a Type VIIC/41 U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 19 April 1943 by Blohm & Voss, Hamburg as yard number 217, launched on 1 March 1944 and commissioned on 13 April 1944 under Kapitänleutnant Victor Graf von Reventlow-Criminil.

Design
Like all Type VIIC/41 U-boats, U-1017 had a displacement of 759 t when at the surface and 860 t while submerged. She had a total length of 67.23 m, a pressure hull length of 50.50 m, a beam of 6.20 m, and a draught of 4.74 m. The submarine was powered by two Germaniawerft F46 supercharged six-cylinder four-stroke diesel engines producing a total of 2800 to 3200 PS and two BBC GG UB 720/8 double-acting electric motors producing a total of 750 PS for use while submerged. The boat was capable of operating at a depth of 250 m.

The submarine had a maximum surface speed of 17.7 kn and a submerged speed of 7.6 kn. When submerged, the boat could operate for 80 nmi at 4 kn; when surfaced, she could travel 8500 nmi at 10 kn. U-1017 was fitted with five 53.3 cm torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes or 26 TMA or TMB Naval mines, one 8.8 cm SK C/35 naval gun, (220 rounds), one 3.7 cm Flak M42 and two 2 cm C/30 anti-aircraft guns. Its complement was between forty-four and sixty.

Service history
The boat's service career began on 13 April 1944 with the 31st Training Flotilla, followed by active service with 11th Flotilla on 1 November 1944. U-1017 took part in no wolfpacks U-1017 was sunk by depth charges and a FIDO homing torpedo dropped by a RAF Liberator bomber of 120 Squadron on 29 April 1945 in the North Atlantic, NW of Ireland in position 56.06667°N, -11.1°W.