The F3H-3 was a proposed version of the Demon to be powered by the General Electric J73-GE-3 engine, rated at 9200 lb.s.t. dry and 12,900 lb.s.t. with afterburning. Ninety examples were ordered (BuNos 143403/143492), but none were completed. The ninety airframes ordered as F3H-3s were completed as J71-powered F3H-2s.
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