Interesting little topic. From a 38 driver.
I'd be interested in how many captured allied aircraft the Germans were able to put into the air. I got good hits on a P-47 with kraut markings during a head-on pass. My flight and I shot down a B-24 with kraut markings near Mulhouse, a city near the French, German, Swiss border. The A-2 (intelligence) debriefer made note, but no credit for a "kill" was made.
How many Swiss Bf-109s were shot down by Allied fighters? We were mixing it up one day over Lake Konstanz with some 109s when the group lead called out, "Don't shoot any of these guys, they're Swiss. Pale blue 109s with red crosses rather than the black of the Luftwaffe. We occasionally strayed over the Swiss border, and though they were noncombatants, they were in the air to protect their sovereignty.
stan r