Heavy German losses on May 10-11:
"The first German air strikes against the Belgians and Dutch virtually eliminated their air forces as possible factors in the campaign; the British and French also suffered heavy aircraft losses on the ground and in the air. But the first day's operations did not come lightly. On May 10, the Germans lost 83 aircraft (not including Ju 52's), including 47 bombers and 25 fighters, equaling the worst losses for a day in the Battle of Britain. On the following day, the Germans lost a further 42 aircraft, including 22 bombers, 8 dive bombers, and 10 fighters."
http://www.ibiblio.org/hyperwar/AAF/AAF-...ffe-2.html
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In the Campaign, bomber losses due to enemy action were 438 + 89 Stukas for a total of 527 bombers due to enemy action alone, not counting accidents.
Total bomber/Stuka losses were 643 aircraft.
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