The Curtiss B-2 Condor was a 1920s

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...

bomber A bomber is a military combat aircraft designed to attack ground and naval targets by dropping air-to-ground weaponry (such as bombs), launching torpedoes, or deploying air-launched cruise missiles. The first use of bombs dropped from an air ...

aircraft. It was a descendant of the

Martin NBS-1 The Martin NBS-1 was a military aircraft of the United States Army Air Service and its successor, the Army Air Corps. An improved version of the Martin MB-1, a scout-bomber built during the final months of World War I, the NBS-1 was order ...

, which was built by the

Curtiss Aeroplane and Motor Company Curtiss Aeroplane and Motor Company (1909 – 1929) was an American aircraft manufacturer originally founded by Glenn Hammond Curtiss and Augustus Moore Herring in Hammondsport, New York. After significant commercial success in its first decade ...

for the Glenn L. Martin Company. There were a few differences, such as stronger materials and different

engines An engine or motor is a machine designed to convert one or more forms of energy into mechanical energy. Available energy sources include potential energy (e.g. energy of the Earth's gravitational field as exploited in hydroelectric power g ...

, but they were relatively minor.

Development

The B-2 was a large fabric-covered

biplane A biplane is a fixed-wing aircraft with two main wings stacked one above the other. The first powered, controlled aeroplane to fly, the Wright Flyer, used a biplane wing arrangement, as did many aircraft in the early years of aviation. While a ...

aircraft. Its two engines sat in

nacelle A nacelle ( ) is a "streamlined body, sized according to what it contains", such as an engine, fuel, or equipment on an aircraft. When attached by a pylon entirely outside the airframe, it is sometimes called a pod, in which case it is attache ...

s between the wings, flanking the

fuselage The fuselage (; from the French ''fuselé'' "spindle-shaped") is an aircraft's main body section. It holds crew, passengers, or cargo. In single-engine aircraft, it will usually contain an engine as well, although in some amphibious aircraft t ...

. It had a twin set of rudders on a twin

tail The tail is the section at the rear end of certain kinds of animals’ bodies; in general, the term refers to a distinct, flexible appendage to the torso. It is the part of the body that corresponds roughly to the sacrum and coccyx in mammal ...

, a configuration which was becoming obsolete by that time. At the rear of each nacelle was a gunner position. In previous planes, the back-facing gunners had been in the fuselage, but their view there was obstructed. A similar arrangement (using nacelle-mounted gun platforms) was adopted in the competing Keystone XB-1 aircraft. The XB-2 competed for a

United States Army Air Corps The United States Army Air Corps (USAAC) was the aerial warfare service component of the United States Army between 1926 and 1941. After World War I, as early aviation became an increasingly important part of modern warfare, a philosophical r ...

production contract with the similar Keystone XB-1, Sikorsky S-37, and Fokker XLB-2. The other three were immediately ruled out, but the Army board appointed to make the contracts was strongly supportive of the smaller Keystone XLB-6, which cost a third as much as the B-2. Furthermore, the B-2 was large for the time and difficult to fit into existing

hangar A hangar is a building or structure designed to hold aircraft or spacecraft. Hangars are built of metal, wood, or concrete. The word ''hangar'' comes from Middle French ''hanghart'' ("enclosure near a house"), of Germanic origin, from Frankish ...

s. However, the superior performance of the XB-2 soon wrought a policy change, and in

1928 Events January * January – British bacteriologist Frederick Griffith reports the results of Griffith's experiment, indirectly proving the existence of DNA. * January 1 – Eastern Bloc emigration and defection: Boris Bazhano ...

a production run of 12 was ordered. One modified B-2, dubbed the B-2A, featured dual controls for both the pilot and the copilot. Previously, the control wheel and the pitch controls could only be handled by one person at a time. This "dual control" setup became standard on all bombers by the 1930s. There was no production line for the B-2A. The B-2 design was also used as a transport. The B-2 was quickly made obsolete by technological advances of the 1930s, and served only briefly with the Army Air Corps, being removed from service by

1934 Events January–February * January 1 – The International Telecommunication Union, a specialist agency of the League of Nations, is established. * January 15 – The 8.0 Nepal–Bihar earthquake strikes Nepal and Bihar with a maxi ...

. Following production of the B-2, Curtiss Aircraft left the bomber business, and concentrated on the ''

Hawk Hawks are birds of prey of the family Accipitridae. They are widely distributed and are found on all continents except Antarctica. * The subfamily Accipitrinae includes goshawks, sparrowhawks, sharp-shinned hawks and others. This subfa ...

'' series of pursuit aircraft in the 1930s.

Variants

;Model 52: Company designation of the B-2. ;XB-2: Prototype. ;B-2: Twin-engined heavy bomber biplane. Initial production version; 12 built. ;B-2A: Redesignation of one B-2 fitted with dual controls. ;Model 53 Condor 18: Civil version of the B-2. Six built.

Military operators

; *

US Army Air Corps The United States Army Air Corps (USAAC) was the aerial warfare service component of the United States Army between 1926 and 1941. After World War I, as early aviation became an increasingly important part of modern warfare, a philosophical r ...

** 7th Bombardment Group, Rockwell Field,

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...

***

11th Bomb Squadron The 11th Bomb Squadron is a unit of the United States Air Force, 2d Operations Group, 2d Bomb Wing located at Barksdale Air Force Base, Louisiana. The 11th is equipped with the Boeing B-52H Stratofortress. The 11th is one of the oldest units in ...

- operated 1928-1931

Specifications (B-2)

References

Bibliography

* Bowers, Peter M. ''Curtiss Aircraft 1907-1947''. London: Putnam & Company, 1979. .

External links

Curtis B-2 Condor page of Joe Baugher, part of his Encyclopedia of American Aircraft

* {{Authority control B-02 Condor Curtiss B-02 Biplanes Aircraft first flown in 1929 Twin piston-engined tractor aircraft