During the war it was inevitable that Allied aircraft would fall into the hands of the Luftwaffe due to accidents , pilot error, or from careful reconstructions of crashed aircraft. Fighters were ferried from airfield to airfield to train Luftwaffe pilots on combat techniques against certain types of Allied fighters. Heavy bombers found their way to the secretive KG200 for various "black operations" mostly behind enemy lines. Using captured Allied bombers like the B-17 allowed the aircraft to loiter for long periods behind Allied lines without raising too much suspicion. The examples listed below were used in various roles by the Luftwaffe.
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