HMS Graph Type VIIC U-boat of the British Royal Navy
HMS Graph (pennant number P715) was a German Type VIIC U-boat that the British Royal Navy captured during World War II. Commissioned as U-570 in Nazi Germany’s Kriegsmarine in mid-1941, she was attacked and captured on her first patrol.
She provided both the Royal Navy and United States Navy with significant information on German submarines, and carried out three combat patrols with a Royal Navy crew, becoming the only U-boat to see active service with both sides during the war. She was withdrawn from service in 1944 due to problems maintaining her.
Type VIIC U-Boat U-570
HMS Graph
Detailed Photographs
Two of the Kingston valves with T spanners. The vent, starboard side, midships. The vent, control No 3 port. The Trimming panel, and hydroplane control. The trimming panel and one blowing panel. The Lever Controls of Nos 2, 3, and 4 vents of the submarine. The control wheel (right) No 1 vent of the submarine. Main motor switches. Motor Control Room. Ready to dive, the Coxswain at the hydroplane controls. Some of the Royal Navy crew of Graph having supper in the forward torpedo room during sea-trials, February 1942 The air pipe connection, deck level, forward of the conning tower. Close up. The blowing panels of the submarine. The CB safe in the Commanding Officer’s cabin of the submarine. In the motor room of HMS Graph. Note the name plates of the German makers. Conning tower, showing both periscopes raised. Close-up of the main motor switches. A Royal Navy Sub-Lieutenant works at the chart-table in the control room of Graph, February 1942