French float plane fighter Loire 210
The good-idea-on-paper Loire 210 was a single-seat catapult-launched fighter seaplane that, powered by a 720hp Hispano-Suiza 9Vbs, could only make 162 knots. Armed with four wing-mounted 7.5mm machine guns, they were prone to structural failure of the wings. Just 21 were delivered, flying with Escadrille HC.1 and HC.2 for six months in 1939.