Grumman was forced to abandon its tricky wing-folding system (used on wartime F6F Hellcats and TBF Avengers) on its new F9F jet fighter due to low ground clearance of the new craft. After extensive design studies, Grumman and Navy finally came up with this arrangement of simply folding them straight up. Short outer panels still hold airplane height to less than 30-ft. minimum required for carrier hangar-deck stowage. First deliveries of production Panther fighters are now being made on orders totaling 317.
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