"Ordered as a successor for the Martin T4M and Great Lakes TG torpedo-bombers, the XT3D-1
featured folding wings and a forward-looking window in the fuselage to assist in the aiming of
ordnance. It was delivered to the Navy in 1931, but flight testing revealed inadequate
performance, particularly with the Pratt & Whitney Hornet S2B1-G engine. Subsequently, the
aircraft was equipped with a Pratt & Whitney XR-1830-54 and enclosed cockpits. This XT3D-2
was delivered to the Navy in 1933, by which time the service had shifted its attention to
dive-bombing. The aircraft remained in use as an engine test bed until 1941, at which time it
was stricken from the Navy inventory."
General characteristics

Crew: 3 (pilot, bomb-aimer/gunner, gunner
Length: 35 ft 5 in (10.80 m)
Wingspan: 50 ft 0 in (15.24 m)
Height: 13 ft 2.5 in (4.026 m)
Wing area: 624 sq ft (58.0 m2)
Empty weight: 4,238 lb (1,922 kg)
Max takeoff weight: 7,857 lb (3,564 kg)
Powerplant: 1 ? Pratt & Whitney S2B1-G Hornet radial piston engine, 575 hp (429 kW)

Performance

Maximum speed: 128 mph (206 km/h; 111 kn) at 6000ft (1830m)
Range: 555 mi (482 nmi; 893 km)
Service ceiling: 14,000 ft (4,267 m)

Armament

Guns: 2 ? 0.3in (7.62mm) machine-gun (flexible mounted on forward and rear cockpits)
Bombs: 1835lb (832kG) torpedo or equivalent in bombs

Below XT3D-1



Below XT3D-2










Regards Duggy