Stinson Reliant

Reliant

Role: Liaison and training monoplane
National origin: United States
Manufacturer: Stinson Aircraft Company
First flight: 1933
Primary user: United States Army Air Corps
Number built: 1327

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.

Design and development

The Reliant is a three-place high-wing land monoplane powered with a Lycoming Model R-680-13 Engine. The engine is fitted with an 8'6" constant speed propeller and the conventional landing gear is equipped with hydraulically-operated brakes. Wing flaps are vacuum-operated." 1,327 were made from 1933 to 1941, in different models, from SR-1 to SR-10. The final model, the Stinson Reliant SR-10, was introduced in 1938.

Operational history

The SR-10 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.

Variants

Picture - SR-6 Reliant at the Historic Aircraft Restoration Museum, Dauster Field, Missouri in 2006

The SR-10 Reliant was available as a landplane, seaplane and skidplane in the following configurations:

Ambulance (2 Stretchers)
Cargo/Ambulance
Target Towing
Firefighting
Photographic

Civilan variants

SR Reliant Powered by a 215-hp (160-kW) Lycoming R-680 radial piston engine. SR-1 Powered by a Lycoming R-680-2 radial piston engine. SR-2 Powered by a 240-hp (179-kW) Lycoming R-680-7 radial piston engine. SR-3 Similar to the SR-1, but with minor structural changes. SR-4 Powered by a 250-hp (186-kW) Wright R-760-E radial piston engine. SR-5 Improved version, powered by a 225-hp (168-kW) Lycoming R-680-4 radial piston engine. SR-5A Powered by a 245-hp (183-kW) Lycoming R-680-6 radial piston engine. SR-5B Powered by a 240-hp (179-kW) Lycoming R-680-2 radial piston engine. SR-5C Powered by a 260-hp (194-kW) Lycoming R-680-5 radial piston engine. SR-5E Powered by a 225-hp (168-kW) Lycoming R-680-4 radial piston engine. SR-5F Powered by a 250-hp (186-kW) Wright R-760-E radial piston engine. SR-6 Five-seat cabin aircraft, powered by a Lycoming R-680-6 radial piston engine. SR-6A Four-seat cabin aircraft, powered by a 225-hp (168-kW) Lycoming R-680-4 radial piston engine. SR-6B Four-seat cabin aircraft, powered by a Lycoming R-680-5 radial piston engine. SR-7 SR-7A Four-seat cabin aircraft, powered by a Lycoming R-680-6 radial piston engine. SR-7B Five-seat cabin aircraft, powered by a Lycoming R-680-G radial piston engine. SR-7C Five-seat cabin aircraft, powered by a Lycoming R-680-D5 radial piston engine. SR-8A Four-seat cabin aircraft. SR-8B Four-seat cabin aircraft, powered by a Lycoming R-620-B6 radial piston engine. SR-8C Four-seat cabin aircraft, powered by a Lycoming R-680-B5 radial piston engine. SR-8D Four-seat cabin aircraft, powered by a Wright R-760-E2 radial piston engine. SR-8DM Utility transport version of the SR-8D. SR-8E Five-seat cabin aircraft, powered by a 320-hp (239-kW) Wright R-760-E23 radial piston engine. SR-8DE Utility transport version of the SR-8E. SR-9 SR-9A SR-9B Powered by a Lycoming R-680-B2 radial piston engine. SR-9C Powered by a Lycoming R-680-D5 radial piston engine. SR-9D Powered by a Wright R-760-E1 radial piston engine. SR-9E Powered by a Wright R-760-E2 radial piston engine. SR-9F Powered by a Pratt & Whitney R-985 radial piston engine. SR-10 SR-10B SR-10C Powered by a Lycoming R-680-B5 radial piston engine. SR-10D SR-10E Powered by a Wright R-760-E2 radial piston engine. SR-10F Powered by a Lycoming R-680 radial piston engine. SR-10G Powered by a Lycoming R-680-E1 radial piston engine.

Military variants

AT-19 USAAF designation for a training variant of the UC-81 for the Royal Navy under Lend-Lease as the Reliant I, 500 built. AT-19A Original designation of the L-9A which was a Voyager not a Reliant. AT-19B Original designation of the L-9B which was a Voyager not a Reliant. AT-19C Conversions of AT-19s for photo-survey aircraft for the USAAF, 51 conversions. UC-81 Four impressed SR.8Bs. UC-81A Two impressed SR.10Gs. UC-81B One impressed SR.8E. UC-81C Three impressed SR.9Cs. XC-81D One civil SR.10F operated by the military for the development of glider pick-up techniques. UC-81E Four impressed SR.9Fs. UC-81F Seven impressed SR.10Fs. UC-81G Three impressed SR.9Ds. UC-81H One impressed SR.10E. UC-81J Nine impressed SR.9Es. UC-81K Five impressed SR.10Cs. UC-81L Two impressed SR.8Cs. UC-81M One impressed SR.9EM. UC-81N Two impressed SR.9Bs. L-12 Two SR.5As impressed into service with the USAAF during World War II. L-12A Two SR.7Bs impressed into service during World War II. RQ-1 One SR-5 Reliant was acquired by the US Coast Guard in 1935. XR3Q-1 One SR-5 Reliant was acquired by the US Navy in 1935. Reliant I 500 Reliants were supplied to the Royal Navy under Lend-Lease. The Reliants were used for light transport and communications, navigation and radio training duties.

Operators

Picture - Stinson V77 Reliant

Picture - Stinson V77 Reliant

Military operators

Argentina

Argentine Navy

Australia

Royal Australian Air Force - 1

Philippines

Philippine Army Air Corps

United Kingdom

Royal Air Force
No. 510 Squadron RAF
Fleet Air Arm

United States

United States Army Air Force
United States Coast Guard
United States Marine Corps
United States Navy
Civil Air Patrol

Civil operators

Brazil

Aerolloyd Iguassu

El Salvador

Grupo TACA

Mexico

Aerovx­as de México

Norway

Widerx¸e

Paraguay

Lx­neas Aéreas de Transporte Nacional (LATN)

United States

Northwest Airways

Specifications (SR-10)

General characteristics

Crew: one, pilot
Capacity: 3 to 4 passengers
Length: 29 ft 6 in (8.4 m)
Wingspan: 41 ft 10 in (12.76 m)
Height: 9 ft 2 in (2.61 m)
Empty weight: 2,530 lb (1,150 kg)
Useful load: 1,345 lb (611 kg)
Powerplant: 1x— Lycoming, 245 hp / Wright, 350 hp / Pratt & Whitney, 450 hp, ()

Performance

Cruise speed: 132 knots (152 mph, 244 km/h)
Range: 565 nm (650 mi, 1,046 km)
Service ceiling: 12,700 ft (3,871 m)

Related lists

List of aircraft of the U.S. military, World War II
List of aircraft of the RAF
List of aircraft of the Fleet Air Arm
List of military aircraft of the United States
List of military aircraft of the United States (naval)

Andrade, John (1979). U.S.Military Aircraft Designations and Serials since 1909. Midland Counties Publications. ISBN ISBN 0 904597 22 9.

Stinson Reliant Pictures

Living Warbirds: The best warbirds DVD series.

Source: WikiPedia