Convoy SC 42

Convoy
Part of World War II
Date 9–12 September 1941 Location North Atlantic Result German victory
Belligerents
Kriegsmarine	Royal Navy  Royal Canadian Navy
Commanders and leaders
Admiral Karl Dönitz	Comm: R Adm. WB Mackenzie SOE: Lt.Cmdr. JC Hibbard
Strength
Markgraf group 14 U-boats	65 merchant ships 4 escorts
Casualties and losses
2 U-boats sunk	16 merchant ships sunk (68,259 tons) 4 ships damaged (14,132 tons)

Convoy SC 42 was the 42nd of the numbered series of World War II Slow Convoys of merchant ships from Sydney, Cape Breton Island to Liverpool.^[1] SC 42 was attacked over a three night period in September 1941, losing 16 ships sunk and 4 damaged. This was the worst Allied loss following the attack on convoy SC 7 the previous year. Two attacking U-boats were destroyed.