|STANDARD DATA: Seats 2. Gross wt. 1,600. Empty wt. 1,027. Fuel capacity 24. Engine 125-hp Menasco C-4.
PERFORMANCE: Top mph 150. Cruise mph 127. Stall mph 42. Initial climb rate 1,200. Range 350. Ceiling 17,500.
The Ryan Aeronautical Co. was a successor to the Ryan Co. that produced the airplane Charles Lindbergh used to cross the Atlantic. The company benefited from the airplane boom that followed but succumbed to the Depression in 1931. In 1934, the company was revived and began building the ST two-seat monoplane series. There were three models: the ST with a 95-hp Menasco, the STA with a 125-hp Menasco, and the STA Special with a 150-hp Menasco. For military purposes, the STM1 was built with the 150-hp engine and sold to many Latin American countries. It was followed by the STM2, which embodied several modifications specified by the U.S. Army Air Corps and was designated the PT-20. Numerous aircraft of this type are still active.