German submarine U-4705 was a Type XXIII U-boat of Nazi Germany's Kriegsmarine during World War II. She was ordered on 7 July 1944 and was laid down on 10 November 1944 at Friedrich Krupp Germaniawerft AG, Kiel, as yard number 947. She was launched on 11 January 1945 and commissioned under the command of Oberleutnant zur See Martin Landt-Hayen on 2 February 1945.[1]
Like all Type XXIII U-boats, U-4705 had a displacement of 234t when at the surface and 258t while submerged. She had a total length of 34.68m (113.78feet) (o/a), a beam width of 3.02m (09.91feet) (o/a), and a draught depth of 3.660NaN0. The submarine was powered by one MWM six-cylinder RS134S diesel engine providing 575-, one AEG GU4463-8 double-acting electric motor electric motor providing 580PS, and one BBC silent running CCR188 electric motor providing 35PS.
The submarine had a maximum surface speed of and a submerged speed of . When submerged, the boat could operate at for ; when surfaced, she could travel at . U-4705 was fitted with two 53.30NaN0 torpedo tubes in the bow. She could carry two preloaded torpedoes. The complement was 14–18 men. This class of U-boat did not carry a deck gun.[1]
On 3 May 1945, U-4705 was scuttled at Kiel as part of Operation Regenbogen. The wreck was later raised and broken up.