Question: How many separate models of the aircraft flown by the Flotille 17F were manufactured?
Sentence (from "Vought F4U Corsair"): From the first prototype delivery to the U.S. Navy in 1940, to final delivery in 1953 to the French, 12,571 F4U Corsairs were manufactured, in 16 separate models, in the longest production run of any piston-engined fighter in U.S. history (1942–53).
Relevant evidence: Yes