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  • Douglas BTD Destroyer




    The Douglas BTD Destroyer is an American dive/torpedo bomber developed for the United States Navy during World War II.

    General Information

    A small number had been delivered before the end of the war, but none saw combat.


    On 20 June 1941, the United States Navy placed an order with the Douglas Aircraft Company for two prototypes of a new two-seat dive bomber to replace both the Douglas SBD Dauntless and the new Curtiss SB2C Helldiver, designated XSB2D-1. The resulting aircraft, designed by a team led by Ed Heinemann, was a large single-engined mid-winged monoplane. It had a laminar flow gull-wing, and unusually for a carrier-based aircraft of the time, a tricycle undercarriage. It was fitted with a bomb bay and underwing racks for up to 4,200 lb (1,900 kg) of bombs or one torpedo (typically the Mark 13), while defensive armament consisted of two wing-mounted 20 mm (0.79 in) cannon and two remote-controlled turrets, each with two .50 in (12.7 mm) machine guns.


    The prototype first flew on 8 April 1943, demonstrating good performance, being faster than the Dauntless and capable of carrying more bombload, but it was heavier and more complex. The U.S. Navy had made a request for a new torpedo bomber developed from the XSB2D-1. Douglas reworked the XSB2D-1 by removing the turrets and second crewman, while adding more fuel and armor, while wing racks could carry not just one but two torpedoes, producing the BTD-1 Destroyer. The orders for the SB2D-1 were converted to the BTD-1, with the first BTD-1 flying on 5 March 1944. The BTD-1 was heavier than the XS2BD-1 and had poorer performance. Ed Heinemann asked for cancelling of the BTD-1.


    The first production BTD-1s were completed in June 1944. By the time Japan surrendered in August 1945, only 28 aircraft had been delivered, and production was cancelled due to performance, along with other aircraft types that had been designed from the start as single-seaters, such as the Martin AM Mauler. None saw combat action. In any event, Heinemann and his team were already working on developing the single-seat BT2D that became the Douglas A-1 Skyraider.


    Total number built: 30.




    Prototype two seat torpedo/dive bomber. Two built.
    Proposed production version of XSB2D-1. 358 ordered, but order converted to BTD-1 before any completed
    Single seat variant. 26 built.
    Prototypes with mixed propulsion, the additional Westinghouse 19B turbojet in rear fuselage giving 1,500 lbf (6.7 kN) thrust did not sufficiently improve performance. First flight May 1944. Two built.



    Douglas_BTD_Destroyer 02.jpg

    Douglas_BTD_Destroyer 03.jpg

    Douglas_BTD_Destroyer 04.jpg

    Douglas_BTD_Destroyer 05.jpg


    Crew: 1
    38 ft 7 in (11.77 m)
    48 ft 0 in (14.64 m)
    16 ft 7 in (5.05 m) over airscrew, one blade vertical
    Wing Area:
    373 sq ft (34.7 sq m)
    Wing Loading:
    48.6 lb/sq ft (237 kg/sq m)
    Empty Weight:
    12,900 lb (5,851 kg)
    19,000 lb (8,618 kg), Gross weight: 18,140 lb (8,228 kg)
    1 × Wright R-3350-14 Cyclone 18 18-cyl. two-row air-cooled radial piston engine, 2,300 hp (1,700 kW)
    Maximum speed: 344 mph (554 km/h, 299 kn)
    Cruise Speed:
    188 mph (303 km/h, 163 kn)
    1,480 mi (2,380 km, 1,290 nmi), Ferry range: 2,140 mi (3,440 km, 1,860 nmi)
    Rate of Climb:
    1,650 ft/min (8.4 m/s)
    Service Ceiling:
    23,600 ft (7,200 m)

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