Douglas T2D

The Douglas T2D was an American twin-engined torpedo bomber contracted by the military, and required to be usable on wheels or floats, and operating from aircraft carriers. It was the first twin-engined aircraft to be operated from an aircraft carrier.[1]

Douglas T2D
Douglas T2D-1 of VP-1
Role Torpedo bomber
Manufacturer Douglas Aircraft Company
First flight 27 January 1927
Introduction 1927
Retired 1937
Primary user United States Navy
Number built 31

Development and design

In 1925, the United States Navy's Bureau of Aeronautics designed a twin-engined torpedo bomber aircraft, intended to have greater performance than contemporary single-engined aircraft.[1] A single prototype was built by the Naval Aircraft Factory as the XTN-1, which was quickly followed by three identical aircraft built by Douglas, the T2D-1.

The XTN/T2D was a large two bay biplane, capable of easy conversion between floats and wheels, and carrying a crew of four.

Operational history

The first three T2D-1's were delivered to the torpedo bomber squadron VT-2 on 25 May 1927,[1] being used for successful trials aboard the aircraft carrier Langley. A further nine T2D-1's were ordered in 1927, these normally being operated as floatplanes, partly owing to criticism from the Army of the Navy operating large land-based bombers,[1] and partly as its large size prevented Langley from embarking a full airwing.[2]

A further 18 aircraft were ordered in June 1930 as patrol floatplanes, being designated P2D-1. These were operated by Patrol Squadron VP-3 in the Panama Canal Zone until they were replaced by Consolidated PBYs in 1937.[1]


U.S. Navy XTN-1 prototype
XTN-1 Prototype
Original prototype built by Naval Aircraft Factory. One built.
Production aircraft, convertible torpedo bomber/patrol floatplane, powered by Wright R-1750 Cyclones. 12 built.
Dedicated patrol floatplane. Fitted with twin tail for improved engine out performance and powered by two Wright R-1820 Cyclones. 18 built.


 United States

Specifications (T2D-1 landplane / floatplane)

Data from McDonnell Douglas aircraft since 1920 : Volume I[3]

General characteristics

  • Crew: 4
  • Length: 42 ft (13 m) (landplane)
44 ft 4 in (13.51 m) (floatplane)
  • Wingspan: 57 ft (17 m)
  • Height: 15 ft 11 in (4.85 m) (landplane)
44 ft 4 in (13.51 m) (floatplane)
  • Wing area: 886 sq ft (82.3 m2)
  • Empty weight: 6,011 lb (2,727 kg) (landplane)
6,528 lb (2,961 kg) (floatplane)
  • Gross weight: 9,986 lb (4,530 kg) (landplane)
10,503 lb (4,764 kg) (floatplane)
  • Max takeoff weight: 10,523 lb (4,773 kg) (landplane)
11,040 lb (5,010 kg) (floatplane)
  • Powerplant: 2 × Wright R-1750 Cyclone 9-cylinder air-cooled radial piston engines, 525 hp (391 kW) each
  • Propellers: 3-bladed fixed-pitch metal propellers


  • Maximum speed: 125 mph (201 km/h, 109 kn) at sea level (landplane)
124 mph (108 kn; 200 km/h) at sea level (floatplane)
  • Range: 457 mi (735 km, 397 nmi) (landplane)
384 mi (334 nmi; 618 km) (floatplane)
  • Ferry range: 454 mi (731 km, 395 nmi) (floatplane)
  • Service ceiling: 13,830 ft (4,220 m) (landplane)
11,400 ft (3,500 m) (floatplane)
  • Time to altitude: 5,000 ft (1,500 m) in 5 minutes 54 seconds (landplane)
5,000 ft (1,500 m) in 7 minutes 42 seconds (floatplane)
  • Wing loading: 11.4 lb/sq ft (56 kg/m2) (landplane)
11.9 lb/sq ft (58 kg/m2) (floatplane)
  • Power/mass: 0.105 hp/lb (0.173 kW/kg) (landplane)
0.1 hp/lb (0.16 kW/kg) (floatplane)



  1. ^ a b c d e Swanborough, Gordon; Bowers, Peter M. (1976). United States Navy Aircraft since 1911 (Second ed.). London: Putnam. pp. 161–162. ISBN 0-370-10054-9.
  2. ^ Donald, David (1997). The complete encyclopedia of world aircraft (Reprinted ed.). New York, NY: Barnes & Noble Books. ISBN 9780760705926.
  3. ^ Francillon, René J. (1988). McDonnell Douglas aircraft since 1920 : Volume I. London: Naval Institute Press. pp. 91–97. ISBN 0870214284.

External links

Douglas Aircraft Company

The Douglas Aircraft Company was an American aerospace manufacturer based in Southern California. It was founded in 1921 by Donald Wills Douglas Sr. and later merged with McDonnell Aircraft in 1967 to form McDonnell Douglas, when it then operated as a division of McDonnell Douglas. McDonnell Douglas later merged with Boeing in 1997.

List of Interwar military aircraft

Interwar military aircraft are military aircraft that were developed and used between World War I and World War II, also known as the Golden Age of Aviation.

For the purposes of this list this is defined as aircraft that entered service into any country's military after the armistice on 11 November 1918 and before the Invasion of Poland on 1 September 1939.

Aircraft are listed alphabetically by their country of origin. Civilian aircraft modified for military use are included but those that remained primarily civilian aircraft are not.

List of aircraft (Df-Dz)

This is a list of aircraft in alphabetical order beginning with 'Df-Dz'.

List of carrier-based aircraft

This List of carrier-based aircraft covers fixed-wing aircraft designed for aircraft carrier flight deck operation and excludes aircraft intended for use from seaplane tenders and submarines as well as dirigibles. Helicopters includes only those regularly operated from aircraft carriers and not those normally flown from other types of surface ships or land bases.

List of military aircraft of the United States (naval)

This list of military aircraft of the United States (naval) includes prototype, pre-production and operational types designations under the 1922 United States Navy aircraft designation system, which was used by the United States Navy, the United States Marine Corps, and the United States Coast Guard.

Prototypes are normally prefixed with "X" and often unnamed (note that these are not the same as the experimental X-planes, which are not generally expected to go into production), while pre-production models are usually prefixed "Y".

For aircraft designations prior to the adoption of this system, see List of military aircraft of the United States (1909–19).

For aircraft designations under the U.S. Army Air Force/U.S. Air Force USAF system or the post-1962 Tri-Service system and aircraft currently in service, see List of military aircraft of the United States.

List of seaplanes and amphibious aircraft

The following is a list of seaplanes and amphibious aircraft, which includes floatplanes and flying boats, by country of origin.

Seaplanes are any aircraft that has the capability of landing on water while amphibious aircraft are equipped with wheels to alight on land, as well as being able to land on the water. Flying boats rely on the fuselage or hull for buoyancy, while floatplanes rely on external pontoons or floats. Some experimental aircraft used specially designed skis to skim across the water but did not always have a corresponding ability to float.

This list does not include ekranoplans, 'Wing-In-Ground-effect' (WIG), water-skimmers, wingships or similar vehicles reliant on ground effect.

List of torpedo bombers

This is a list of torpedo bomber aircraft, designed or adapted to carry a primary weapon load of one or more aerial torpedoes in an anti-shipping role. It does not include types equipped for the more general anti-submarine warfare (ASW) role.


T2D can refer to:

Type 2 Diabetes

Technology Transfer Database

Type-2 Copper-Depleted

Douglas T2D, an American twin-engined torpedo bomber, 1927–1937

Douglas military aircraft
Ground attack
Training aircraft
USN/USMC patrol aircraft designations 1923–1962
Patrol Bomber
Patrol Torpedo Bomber
USN/USMC torpedo aircraft designations pre-1962
Torpedo Bomber
Torpedo Scout
Patrol Torpedo Bomber


This page is based on a Wikipedia article written by authors (here).
Text is available under the CC BY-SA 3.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.