Martin CaidinÕs Black Thursday: The Story of the Schweinfurt Raid tells of the United States Air ForceÕs massive bombing raid into Nazi GermanyÕs industrial heartland on Thursday, October 14, 1943. On that fateful day two hundred and ninety one hulking B-17 Flying Fortresses - escorted by squadrons of nimble P-47 Thunderbolts Ð miraculously fought their way through swarms of Messerschmitt Me-109Õs, Focke-Wulf FW-190Õs, Heinkel He-113Õs and more on their way to cripple the enemyÕs vital ball-bearings plant at Schweinfurt.