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U 570

HMS Graph Type VIIC U-boat

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 She was withdrawn from service in 1944 due to problems maintaining her.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

  • The German U-Boat U-570 enters dock at Barrow-in-Furness after her capture by the Royal Navy.
    The German U-Boat U-570 enters dock at Barrow-in-Furness after her capture by the Royal Navy.
  • U 570
    U 570
  • HMS Graph as U570
    Type VIIIC U-Boat U 570
  • U570 During Her Capture
    U570 During Her Capture

HMS Graph

  • HMS Graph 19 Feb 1942 in the Clyde
    19 Feb 1942 in the Clyde
  • HMS Graph 19 Feb 1942 in the Clyde
    During Trials 19 Feb 1942 in the Clyde
  • The Commanding Officer, Lieut Cdr Norman on the bridge of HMS Graph
    The Commanding Officer, Lieut Cdr Norman on the bridge
  • HMS Graph
    HMS Graph
  • Lieut Cdr Norman, Commanding Officer of HMS Graph on the bridge as she comes alongside.
    Lieut Cdr Norman, Commanding Officer on the bridge as she comes alongside.
  • HMS Graph
    HMS Graph
  • HMS Graph
    HMS Graph
  • HMS GRAPH at the completion of a trial trip 19 Feb 1942
    At the completion of a trial trip 19 Feb 1942
  • HMS Graph 20 April 1943 at Holy Loch
    20 April 1943 at Holy Loch

Detailed Photographs

  • Two of the Kingston valves with T spanners.
    Two of the Kingston valves with T spanners.
  • The vent, starboard side, midships.
    The vent, starboard side, midships.
  • The vent, control No 3 port.
    The vent, control No 3 port.
  • The Trimming panel, and hydroplane control.
    The Trimming panel, and hydroplane control.
  • The trimming panel and one blowing panel.
    The trimming panel and one blowing panel.
  • The Lever Controls of Nos 2, 3, and 4 vents of the submarine.
    The Lever Controls of Nos 2, 3, and 4 vents of the submarine.
  • The control wheel (right) No 1 vent of the submarine.
    The control wheel (right) No 1 vent of the submarine.
  • Main motor switches.
    Main motor switches.
  • Motor Control Room.
    Motor Control Room.
  • Ready to dive, the Coxswain at the hydroplane controls.
    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
    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 air pipe connection, deck level, forward of the conning tower. Close up.
  • The blowing panels of the submarine.
    The blowing panels of the submarine.
  • The CB safe in the Commanding Officer's cabin 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.
    In the motor room of HMS Graph. Note the name plates of the German makers.
  • Conning tower, showing both periscopes raised.
    Conning tower, showing both periscopes raised.
  • Close-up of the main motor switches.
    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
    A Royal Navy Sub-Lieutenant works at the chart-table in the control room of Graph, February 1942