Flying the P-51 in Combat

during the first daylight raid on Berlin by American B-17s on March 4, 1944. I was flying a P-51B with the birdcage canopy. The weather was extremely bad, and many of the B-17 groups had aborted, with the exception of a couple of boxes, as I remember. I only saw one other Mustang from our 363rd Squadron. Flying at 32,000 feet above the bombers, I spotted a lone 109 out to the side