By the mid-1930s, Stinson had developed the classic gullwing models, the SR-9 and SR-10, which were the standard of busi-nesses until the beginning of the War, when they became model V-77 personnel transports and navigation trainers.
AT-19 Reliant
The AT-19 was based on the civilian Reliant.
1933 Stinson SR 5 A Reliant Engine : Lycoming R-680-6, 246 hp Length : 27.264 ft / 8.31 m Height : 8.432 ft / 2.57 m Wingspan : 41.011 ft / 12.5 m Max take off weight : 3475.1 lb / 1576.0 kg Weight empty : 2326.3 lb / 1055.0 kg Max. speed : 117 kt / 217 km/h Service ceiling : 15502 ft / 4725 m Range : 560 nm / 1038 km
1937 Stinson Reliant SR-9B Base Price: $7,985 (1937) Engine: Lycoming R-680-13, 300 hp Fuel type: 80/100LL Propeller: Hamilton Standard constant speed Landing gear type: tailwheel Max ramp weight: 3750 lb Gross weight: 3750 lb Max landing weight: 3750 lb Empty weight, std: 2515lb Useful load, std: 980 lb Payload, full std. fuel: 728 lb Usable fuel: 82 USG Oil capacity: 5 qt Wingspan: 41 ft. 11 in Overall length: 27 ft. 11 in Height: 8 ft. 6 in Wing area: 258.5 sq. ft Wing loading: 14.5 lbs./sq. ft Power loading: 12.5 lbs./hp Wheel track: 96 in. Wheel size: 8.50 x10 in Seating capacity: 4 Cabin doors: 2 Cabin width: 52 in Cabin height: 48 in Baggage capacity: 150 lb Cruise speed 75% power: 124 kt Max range (w/ res) 75% power: 690 nm Fuel consumption 75% power: 14 USgph Stall speed (flaps up): 56 kt Stall speed (flaps down): 50 kt Best rate of climb: 900 fpm Service ceiling: 16,500 ft Takeoff ground roll: 780 ft Landing ground roll: 700 ft