The Farman F.51 was a 1920s French maritime reconnaissance flying boat designed and built by Farman.
The F.51 was an unequal-span four-bay biplane flying boat with a crew of four.
It was powered by two Lorraine 8bd engines mounted in tractor configuration.
Tested by the French Navy but it failed to win any orders, Farman did briefly consider a civil version but the project was abandoned.
Data from The Illustrated Encyclopedia of Aircraft (Part Work 1982–1985), 1985, Orbis Publishing, Page 1737General characteristics Performance Armament