(1) The F4U was originally designed with bombays in the wings, to drop 30-50lb bombs on enemy bombers.
(2)The landing gear doors on the P-51 would sometimes pop open in high speed dives, ripping the wing off the aircraft.
(3)Early models of the P-38 carried a 37mm cannon.
(4)Specially equipped radar versions of the B25H were very accurate. On one trial, a b25 locked onto the steel mast of a wooden sailing ship. From several thousand yards distance, the B25H severed the steel mast in two with a 75mm round.
(5) The B-25 was the first aircraft equipped with an aerial flamethrower.
(6) B-17s were originally equipped with an electronic ball turret. The gunner knelt on his knees and aimed the turret with a periscope. A manned turret replaced this system after gunners kept puking from getting motion sickness staring through the periscope.
(7) The first jet engine was built in 1911.