The Wildcat had been the primary shipboard fighter once the United States entered WWII. The F4F was barrel-shaped, with angular wingtips and rudder and a narrow-track undercarriage. The F4F was well-armed and dependable, and ended up being a natural shipboard aircraft, probably more straightforward to secure on a carrier deck than on land. The F4F never really had a operational speed limitation.
The FM-1 ended up being basically a F4F-4 built by the Eastern Aircraft, in its factory at Linden, nj-new jersey. There was clearly one modification: The FM-1 had just four guns, with ammunition risen up to 430 rounds per gun. This version of the Wildcat was primarily intended for escort providers, while the F6F was changing the F4F on fleet providers.
