F4F-4 and later models of Wildcat received a similar folding wing and the F6F Hellcat (both designed by Grumman) employed this mechanism as well. The engine used was the Wright R-2600-20 (which produced 1,900 hp /1,417 kW). There were three crew members: pilot, turret gunner and radioman/bombardier/ventral gunner. One .30 caliber