Convoy SL81
 

Can anyone give me any information on the Fw200 aircraft from Luftwaffe KG40, which attacked the Merchant Navy convoy SL81. I am particularly interested in the aircraft which sank the SS Tunisia on the 4/8/41.
Could anyone also forward details of the action of 1/8/41 where a Hurricane launched from HMS Maplin brought down an Fw200.
I shall be very grateful for everything regarding the above received.