Photo: Robert Deering 5/4/2011
Delta Airlines Museum
Atlanta, Georgia
The Stinson Reliant was a popular single-engine four to five seat high-wing monoplane manufactured by the Stinson Aircraft Division of the Aviation Manufacturing Corporation of Wayne, Michigan.  It is a three-place high-wing fixed tailwheel land monoplane powered with a variety of radial engines.

1,327 Reliants of all types were made from 1933 to 1941, in different models, from SR-1 to SR-10. The final commercial model, the Stinson Reliant SR-10, was introduced in 1938. A militarized version was first flown in February 1942 and remained in production through several additional versions (all externally identical) until late 1943 for the US and British armed forces.

Reliant production can be broken into two distinct types - the straight wing Reliants (all models up to SR-6) and the gull wing Reliants (all models from SR-7 and after including the militarized V-77/AT-19) with there being little in common between the two groups of types. The straight wing Reliant had a wing of constant chord and thickness which was supported by two struts each side with additional bracing struts. In contrast the taper wing Reliant had the broadest chord and thickness of the wing at mid span, with the outer wing trailing edge heavily angled forward and a rounded cutout on the leading edge root, all supported by a single strut. The taper wing had a significant step up between the fuselage and the wing, and the changes in wing thickness gave it a distinct gull appearance from the front.

The Reliant was used by the U.S. Army in World War II as a utility aircraft, designated UC-81, and as trainer designated AT-19. They were also used by the Royal Navy and Royal Air Force for light transport and communication duties. After the war they were sold on the civilian market as the Vultee V-77.

The V-77 was a spartan version of the SR-10 with the 300hp Lycoming R680-E3B, a single door on the left side and the traditional "Bump" cowl was replaced with a simpler smooth cowl. Internal structure was beefed up significantly over the commercial models and a distinctive triangle shaped counterbalance was added to the rudder.

General characteristics (SR-10F)

  • Crew: one, pilot
  • Capacity: 3 to 4 passengers
  • Length: 27 ft 11 in (8.51 m)
  • Wingspan: 41 ft 7 in (12.68 m)
  • Height: 8 ft 6 in (2.59 m)
  • Wing area: 256.5 sq ft (23.84 m)
  • Empty weight: 3,045 lb (1,384 kg)
  • Loaded weight: 4,605 lb (2,093 kg)
  • Powerplant: 1 Pratt & Whitney Wasp Junior SB nine-cylinder air-cooled radial engine, 400 hp (298 kW)


  • Cruise speed: 154 knots (177 mph, 285 km/h)
  • Range: 739 nmi (850 mi, 1,369 km)
  • Service ceiling: 21,000 ft (6,400 m)
  • Rate of climb: 1,330 ft/min (6.8 m/s)

Source: Wikipedia