Vought XSO2U


1st Flight 1939

Crew: 2 (pilot and observer)

Length: 36 ft 1 in (11.00 m)

Wingspan: 38 ft 2 in (11.63 m)

Height: 15 ft 11 in (4.85 m)

Wing area: 300 sq ft (28 m2)

Empty weight: 4,016 lb (1,822 kg)

Max takeoff weight: 5,624 lb (2,551 kg)

Fuel capacity: 128 US gallons (480 l; 107 imp gal)

Powerplant: 1 × Ranger XV-770 inline engine, 450 hp (340 kW)

Propellers: 2-bladed Hamilton Standard constant-speed


Maximum speed: 190 mph (310 km/h, 170 kn) at 9,000 feet (2,700 m)

Service ceiling: 22,200 ft (6,800 m)


Guns: 2 x M2 Browning machine guns, one fixed forwards-firing, one flexible rear-firing.

Bombs: Two light bombs or depth charges on under wing racks.


The Vought XSO2U was an American observation floatplane developed by Vought-Sikorsky for the United States Navy during the late 1930s.

Intended to replace the Curtiss SOC Seagull in service as a scout aboard cruisers, it proved superior to the Curtiss SO3C in evaluation, but failed to win a production contract due to Vought’s lack of manufacturing capacity.

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