German submarine U-107 (1940)

German submarine U-107 was a Type IXB U-boat of the Nazi German Kriegsmarine that operated during World War II. Between January 1941 and August 1944, it sailed on 16 active patrols at a time when a U-boat averaged a lifespan of seven to 10 patrols. During that time, U-107 sank 39 Allied ships, in addition to damaging another four ships. It was launched on 2 July 1940, based at the U-boat port of Lorient, with a crew of 53 under the initial command of Günther Hessler. It was later commanded, in order, by Harald Gelhaus, Valker Simmermacher and its final commander, Karl Heinz Fritz.

Ninth Patrol

 * 4 March 1943, came under attack from an unidentified Allied aircraft.
 * Moderately damaged by the attack.


 * 22 March 1943 at 14:35 it came under attack from another unidentified Allied aircraft
 * Undamaged

Sixteenth and final patrol

 * On 16 August 1944, U-107 departed on active patrol. It was intercepted on 18 August in the Bay of Biscay, west of La Rochelle, in position 46.76667°N, -3.81667°W, by Allied forces, and was sunk by depth charges from Short Sunderland EJ150 (coded NS-W) of No. 201 Squadron, Royal Air Force. All 58 hands were lost.