adding ... a few fighters here and there - some missions ,
see link
http://www.naval-history.net/WW2Camp...ticBattles.htm
MAY 1941
8th - On patrol north of the Seychelles in the Indian Ocean, heavy cruiser "Cornwall" found and sank German raider "PINGUIN". This was the first raider to be hunted down, having accounted for 28 ships of 136,000 tons.
9th - Capture of "U.110" and the German Enigma - South of Iceland, "U.110" (Lt-Cdr Lemp of the "Athenia" sinking) attacked Liverpool out convoy OB318 protected by ships of Capt A. J. Baker-Creswell's escort group. Blown to the surface by depth charges from corvette "Aubretia" on the 9th, "U-110's" crew abandoned ship, but she failed to go down. A boarding party from destroyer "Bulldog", led by Sub-Lt Balme, managed to get aboard. In a matter of hours they transferred to safety "U-110's" entire Enigma package - coding machine, code books, rotor settings and charts. The destroyer "Broadway" stood by during this hazardous operation. Two days later "U-110" sank on tow to Iceland, knowledge of her capture having been withheld from the crew and Lt-Cdr Lemp dying at the time of the boarding. The priceless Enigma material represented one of the greatest intelligence coup ever and was a major naval victory in its own right. "U-110's" capture was far and away the most successful of the attempts to capture Enigma codes. In the March 1941 raid on the Norwegian Lofoten Islands, spare coding rotors were found. Then two days before the "U-110" triumph, a cruiser force had tried to capture the weather trawler "Munchen" off Iceland. At the end of the coming June a similar operation was mounted against the "Lauenberg". In both cases useful papers were taken but the real breakthrough only came with "U-110". Included with the material captured were all rotor settings until the end of June 1941. A number of codes were used with Enigma. The U-boat one was 'Hydra', also used by all ships in European waters. From the end of June, Bletchley Park was able to decipher 'Hydra' right through until the end of the war. Unfortunately the U-boats moved off this version to the new 'Triton' in February 1942. The big ship 'Neptun' and Mediterranean 'Sud' and 'Medusa' codes were also soon broken.
10th-19th - Attacks on Halifax/UK Convoys - Attacks on these convoys southwest of Iceland led to the first success and loss by Royal Canadian Navy forces in the Battle of the Atlantic. Against SC42, "U-501" was sunk by Canadian corvettes "Chambly" and "Moosejaw" (sister ship HMCS Louisburg shown below) on the 10th. Next day RN destroyers "Leamington" and "Veteran" of 2nd EG sank "U-207". But in exchange, SC42 lost 16 of its 64 merchantmen. A few days later, on the 19th, Canadian corvette "LEVIS" with SC44 was lost to "U-74" southeast of Cape Farewell.
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