Martin XB-27

The Martin XB-27 (Martin Model 182) was an aircraft proposed by the Glenn L. Martin Company to fill a strong need in the United States Army Air Corps for a high-altitude medium bomber. Its design was based approximately on that of Martin's own B-26 Marauder. The XB-27 remained on paper, and no prototypes were built.

XB-27
Role High-altitude medium bomber
National origin United States
Manufacturer Glenn L. Martin Company
Developed from Martin B-26 Marauder

Specifications (as designed)

Data from [1]

General characteristics

  • Crew: 7
  • Length: 60 ft 9 in (18.52 m)
  • Wingspan: 84 ft 0 in (25.60 m)
  • Height: 20 ft 0 in (6.10 m)
  • Powerplant: 2 × Pratt & Whitney R-2800-9 , 2,000 shp (1,500 kW) each
  • Propellers: 4-bladed constant-speed propellers

Performance

  • Maximum speed: 280 mph (450 km/h, 240 kn)
  • Range: 2,900 mi (4,700 km, 2,500 nmi)
  • Service ceiling: 33,500 ft (10,200 m)
  • Power/mass: 0.12 hp/lb (0.20 kW/kg)

Armament

  • Guns:
    • 3 × .30 in (7.6 mm) machine guns
    • 1 × .30 in (7.6 mm) machine gun

See also

Related development

Aircraft of comparable role, configuration and era

Related lists

References

  1. ^ Heyman, Jos (2015). UNITED STATES MILITARY AIRCRAFT : Air Force : B=Bomber.
B27

B27 may refer to:

Bundesstraße 27, a German road

HLA-B27, an HLA B serotype

Glenn L. Martin Company

The Glenn L. Martin Company was an American aircraft and aerospace manufacturing company founded by aviation pioneer Glenn L. Martin. The Martin Company produced many important aircraft for the defense of the US and allies, especially during World War II and the Cold War. During the 1950s and 60s, the Martin Company moved from the aircraft industry into the guided missile, space exploration, and space utilization industries.

In 1961, the Martin Company merged with American-Marietta Corporation, a large sand and gravel mining company, forming Martin Marietta Corporation. In 1995, Martin Marietta merged with aerospace giant Lockheed to form the Lockheed Martin Corporation.

List of United States bomber aircraft

This is a list of United States bomber aircraft

List of bomber aircraft

The following is a list of bomber airplanes and does not include bomber airships, organized by era and manufacturer. A bomber is a military aircraft designed to attack ground or sea targets.

List of cancelled military projects

This is a list of cancelled military projects.

Martin B-26 Marauder

The Martin B-26 Marauder is an American twin-engined medium bomber built by the Glenn L. Martin Company in Middle River, Maryland (just east of Baltimore) from 1941 to 1945. First used in the Pacific Theater of World War II in early 1942, it was also used in the Mediterranean Theater and in Western Europe.

After entering service with the United States Army aviation units, the aircraft quickly received the reputation of a "widowmaker" due to the early models' high accident rate during takeoffs and landings. This was due to the fact that the Marauder had to be flown at exact airspeeds, particularly on final runway approach or when one engine was out. The unusually high 150 mph (241 km/h) speed on short final runway approach was intimidating to many pilots who were used to much slower approach speeds, and whenever they slowed down to speeds below what the manual stipulated, the aircraft would often stall and crash.The B-26 became a safer aircraft once crews were re-trained, and after aerodynamics modifications (an increase of wingspan and wing angle-of-incidence to give better takeoff performance, and a larger vertical stabilizer and rudder). The Marauder ended World War II with the lowest loss rate of any USAAF bomber.A total of 5,288 were produced between February 1941 and March 1945; 522 of these were flown by the Royal Air Force and the South African Air Force. By the time the United States Air Force was created as an independent military service separate from the United States Army in 1947, all Martin B-26s had been retired from U.S. service. After the Marauder was retired the unrelated Douglas A-26 Invader then assumed the "B-26" designation which led to confusion between the two aircraft.

North American XB-28 Dragon

The North American XB-28 (NA-63) Dragon was an aircraft proposed by North American Aviation to fill a strong need in the United States Army Air Corps for a high-altitude medium bomber. It never entered into production, with only two prototypes being built.

Martin and Martin Marietta aircraft
Model numbers
Airliners
Attack aircraft
Bombers
Maritime patrol
Military transports
Military trainers
Scout/Torpedo bombers
Reconnaissance aircraft
Martin Marietta
USAAS/USAAC/USAAF/USAF bomber designations, Army/Air Force and Tri-Service systems
Original sequences
(1924–1930)
Main sequence
(1930–1962)
Long-range Bomber
(1935–1936)
Non-sequential
Tri-Service sequence
(1962–current)

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