Vought O2U Corsair

 

1st Flight 1926

The Vought O2U Corsair was a 1920s biplane scout and observation aircraft.

Made by Vought Corporation, the O2U was ordered by the United States Navy in 1927.

Powered by a 400 hp (298 kW) Pratt & Whitney R-1340 Wasp engine, it incorporated a steel-tube fuselage structure and a wood wing structure with fabric covering.

Many were seaplanes or amphibians.

Variants

XO-28

Single example taken on charge by the U.S. Army Air Corps for evaluation with serial 29-323, Wright Field Project Number P-547, powered by a 450 h.p. R-1340-C engine.

Destroyed in hangar fire at Wright Field, Ohio, 18 March 1930.

O2U-1

two prototypes followed by 130 production aircraft for USN with interchangeable wheel/float landing gear and 28 aircraft for other customers. 450 hp (336 kW) Pratt & Whitney R-1340-88 Wasp engine

O2U-2

37 built, increased span and larger rudder

O2U-3

110 built (30 for export), revised wing rigging, redesigned tail surfaces and Pratt & Whitney R-1340-C engine

O2U-4

43 built (1 for export. Also seven civilian O2U were built), similar to O2U-3 but with equipment changes

O3U-1

87 built as observation seaplanes incorporating Grumman amphibious float

O3U-2

29 built, strengthened airframe, Pratt & Whitney R-1690 Hornet engine

O3U-3

76 built, 550 hp (410 kW) Pratt & Whitney R-1340-12 Wasp engine.

O3U-4

65 built, Pratt & Whitney R-1690-42 Hornet engine.

XO3U-5

test aircraft with Pratt & Whitney R-1535 engine

XO3U-6

test aircraft converted from O3U-3 with NACA cowling and enclosed cockpits

O3U-6

32 built, 16 with Pratt & Whitney R-1340-12 Wasp and 16 with Pratt & Whitney R-1340-18 Wasp engines

SU-1

Scout version of the O3U based on the O3U-2, 28 built

SU-2

Scout version of the O3U based on the O3U-4, 53 built

SU-3

Variant of the SU-2 with low-pressure tires, 20 built

XSU-4

SU-2 converted as a prototype SU-4 variant with a 600 hp R-1690-42 engine, later became an SU-4.

SU-4

SU-4 re-engine with a 600 hp R-1690-2 engine, 41 built

One United States Navy O2U-3 evaluated by the United States Army Air Corps.

Vought V-65B

Export version for Brazil – 36

Vought V-65C

Export version for Nationalist China

Vought V-65F

Export version for Argentine Navy

Vought V-66B

Export version for Brazil

Vought V-66E

Export version, one evaluated by the Royal Air Force

Vought V-66F

Export version for Brazil – 15, and Argentine Navy

Vought V-80F

Export version for Argentine Navy

Vought V-80P

Export version for Peruvian Air Force

Vought V-85G

Export version for Germany

Vought V-92C

Export version for Nationalist China

Vought V-93S

Export version of the O3U-6 for Thailand

Vought V-99M

Export version for Mexico

TNCA Corsario Azcárate

31 O2U-4A aircraft built under license in Mexico.

Vought AXV1

A single O2U supplied to the Imperial Japanese Navy Air Service for evaluation in 1929.

Specifications

Crew: Two

Capacity: 500 lb (227 kg)

Length: 27 ft 5.5 in (8.37 m)

Wingspan: 36 ft 0 in (10.97 m)

Height: 11 ft 4 in (3.45 m)

Wing area: 337 sq ft (31.31 m2)

Empty weight: 3,312 lb (1,502 kg)

Max take-off weight: 4,765 lb (2,161 kg)

Powerplant: 1 × Pratt & Whitney R-1690-42 Hornet radial, 600 hp (447 kW)

Performance

Maximum speed: 167 mph (269 km/h, 145 kn) at sea level

Range: 680 mi (1,094 km, 591 nmi)

Service ceiling: 18,600 ft (5,670 m)

Power/mass: 0.13lb/hp (0.21 kW/kg)

Armament

Guns: 3x .30 cal (7.62 mm) Browning machine guns, one forward firing in upper wing and two on a trainable mount in rear cockpit

Bombs: 4x 116 lb (53 kg) or 10 30 lb (14 kg) bombs under lower wings.

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