Following the formation of the Thomas-Morse Aircraft Corp., the company introduced the aircraft they are most
remembered for the Model S-4, or “Tommy.” This single-seat advanced trainer was used extensively by the USAAC.
Seen here is one of the few flyable, and very early, S-4Bs owned by the Old Rhinebeck Aerodrome
, USAAC 4328, N74W). (AAHS photo archives, Gerald Balzer collection)

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