I once got to fly in, and briefly fly, a B-17G Flying Fortress and I loved this photo of a B-17G from head-on. My dad was a draftsmen working for Boeing in WWII on the B-17F and G and then on the top secret B-29 Superfortress.
B-17 Flying Fortress. The young men were given 300 hours of intensive training before being deployed to action. The initial rejection rate of applicants was 45%. Less than perfect eyesight was a major cause of rejection. rjp
The Nine-O-Nine, a B-17 Flying Fortress heavy bomber of the 323rd Bomb Squadron, 91st Bomb Group, completed 140 combat missions during World War II, believed to be the Eighth Air Force record for most missions, and never lost a crewman as a casualty. B-17G-85-DL, 44-83575, civil register N93012, owned and flown by The Collings Foundation, Stow, Massachusetts, currently appears at airshows marked as the historic Nine-O-Nine.