United States Army Air Corps (USAAC) Curtiss P-1 Hawk Pursuit AT-4 airplane, with smaller engines, used for training pursuit pilots in Michigan, United States. A stationary AT-4 aircraft. Propellers are spinning. USAAS personnel work on the aircraft. The AT-4 taxis on a runway. A pilot in the cockpit.
A United States Army Air Service (USAAS) Curtiss XNBS-4 bombardment airplane in Michigan, United States. A Curtiss XNBS-4 bomber taxis.
A United States Army Air Service (USAAS) Huff-Daland LB-1 light bomber aircraft in Michigan, United States. A pilot in a cockpit. The propellers spin. The aircraft taxis.