National Aircraft Division Of American Airmotive Corp was established in 1956 to remanufacture Boeing-Stearman PT-13/17 Kaydet trainers as the NA-75 agricultural aircraft. Modifications included new high-lift wings of all metal construction and metal-panelled fuselage sides. The NA-75 was offered either in completed form or as a conversion.
Various engine options from 220hp Continental to 450hp P&W were offered.
Wingspan (upper): 33’0″
Wingspan (lower): 29’6″
Hopper loads: 500-2000 lb
Stall speed 500 lb load: 35 mph
Engine: 220hp Continental R-670 or 225hp Lycoming R-680-B4 (also others as available)
Wingspan: (upper) 33’1″ (lower) 29’5″
Length: 24’9″
Payloads: up to 2000 lb
Seats: 1
All Aero 