Martin Caidin wrote an entire book about the B-17's in that movie: "Everything But The Flak". https://www.amazon.com/Everything-But-Flak-Martin-Caidin/dp/B000G

Martin Caidin wrote an entire book about the B-17's in that movie: "Everything But The Flak". https://www.amazon.com/Everything-But-Flak-Martin-Caidin/dp/B000GWZTQ2 https://www.amazon.com/Everything-But-Flak-Martin-Caidin/dp/...