The F6F included conditions to carry additional external fuel tanks or two 1,000lb. bombs, stubs for establishing six HVAR 5in. rockets and another armament arrangement consisting of two 20mm cannon and four 50cal. machine firearms or the standard six. 50cal. weapons. A smoother closer fitting cowling had been installed around the P&W R2800-10W engine. At 23,000 ft. the F6F-5 would fly at 380mph, using just seven minutes to climb to 20,000ft, a corner screen ended up being removed on all but a number of the very early F6F-5s.930 with this model Hecat had been provided to England during WWII and later in smaller amounts to France and Uruguay.