Thomas-Morse S-4C Aviation Section, US Army Signal CorpsThese are 1 72 scale decals for the Thomas Morse S 4C, serial SC38976, assigned to the Signal Corps Flying School, Aviation Section, U. S. Army Signal Corps one of the most beloved American trainer aircraft of World War I, used to prepare a generation of U. S. military pilots for combat in the skies over France. The Thomas Morse S 4C affectionately known as the "Tommy" was a single seat advanced trainer designed to bridge the gap between basic flight