Convoy SC 107

Convoy SC 107
Part of Battle of the St. Lawrence, Battle of the Atlantic
RCAF Lockheed Hudson, like the one that sank U-658
Date 29 October–4 November 1942 Location North Atlantic Result German victory
Belligerents
United Kingdom Canada	Germany
Commanders and leaders
VADM B C Watson LCDR D.W. Piers RCN[1]	Admiral Karl Dönitz
Strength
39 freighters 2 destroyers 6 corvettes	17 submarines
Casualties and losses
15 freighters sunk (83,790GRT) 150 killed/drowned	2 submarines sunk 100 killed/drowned (3 sunk, if counting U-520 before the subs attacked)

Convoy SC 107 was the 107th of the numbered series of World War II Slow Convoys of merchant ships from Sydney, Cape Breton Island to Liverpool.^[2] The ships departed New York City on 24 October 1942 and were found and engaged by a wolfpack of U-boats which sank fifteen ships.^[3] It was the heaviest loss of ships from any trans-Atlantic convoy through the winter of 1942–43.^[4] The attack included one of the largest non-nuclear man-made explosions in history, when U-132 torpedoed ammunition ships SS Hobbema and SS Hatimura - both were sunk, one exploded, with the German submarine also being destroyed in the explosion.