The TA-1 (a United States military designation Trainer, Aircooled No. 1) was designed to meet a United States Army requirement for a training aircraft for the air service. The TA-1 was a conventional two-seat biplane. Three were built, two with a Lawrance R-1 engine and another with an ABC Wasp, the last two under McCook field project numbers Elias P-178 and Elias P-179. The aircraft performance was inferior to the other aircraft under evaluation (the Dayton-Wright TA-3) and no orders or further aircraft were built.