351st Combat Photos:

B-17s of the 351st Bomb Group fly through heavy flak on their way to the target, Berlin, on March 4, 1944.  It was, as they used to say, "Flak so thick you could walk on it."

A 351st Bomb Group Navigator plots his course.

The waist gunners take a moment before needing to man their guns.

A German fighter, the Messerschmitt Bf-109 or more commonly know as the Me-109.

A B-17 from a 510 Bomb Squadron enroute to the target.  (notice the ball turret guns pointing straight down).