Forums


  • "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
    1atNASAnacostaNotethemannerinwhichthewingswerefoldedandtheobservationwindowbeneaththeengine
    1931
    1BuNo8730inSeptember1931
    Below XT3D-2
    2picturedonthegroundattheNavalProvingGroundDahlgrenVA
    2picturedonthegroundatNASAnacostia
    2
    1
    3
    2aircraftonthegroundatanunidentifiedlocation
    2onthegroundshowingdetailsofthecanopiedcockpits
    1
    2picturedinthemarkingsoftheNavalProvingGroundDahlgrenVANotetheenclosedcockpits
    1
    Regards Duggy
     

Moderator(s): Boelcke, Buhli, cheruskerarmin, Cpt_Farrel, Duggy, Graf, Gumpy, Hayate, HBPencil, HEERDT, Jarink, Jaypack44, Juri_JS, kristorf, mapal, MarcoPegase44, monguse, PatCartier, PIPS, RAF_Loke, Rudi_Jaeger, Tailhook, Tomi_099, US_Grant