The Thomas-Morse S-4C biplane was designed by B. Douglas Thomas, who was also
responsible for the Curtiss "Jenny" aircraft. The S-4C was certainly the best
advanced trainer produced in the United States during World War I. Nearly 500
of these single seaters were produced, but they came too late to play a significant
part in wartime activity. Such problems as they created stemmed more from the
characteristics of the early rotary engine that powered them than from any airframe
defects. It was its motor that caused the Thomas-Morse to be phased out of service
in the very early 1920's. But before that occured these advanced trainers were a
common sight at Rockwell Field here in San Diego where they were flown by both Army
Air Service and the Naval Air Detachments of the Pacific Fleet.
After they were phased out of military service a number of S-4C's had lengthy careers
in films, as fake Nieuports in the flying epics of the early 1930's. This accounts
for the survival of this original machine which was acquired from the "Wings and Wheels"
Museum in Orlando, Florida, in December 1981. It is presently on loan to the Museum.
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