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A-20 Havoc

A-20 Havoc
DB-7/Boston/P-70
Douglas A-20G Havoc.jpg
A-20G of the United States Army Air Forces
Role Light bomber
Manufacturer Douglas Aircraft Company
Designer Ed Heinemann
First flight 23 January 1939
Introduction 10 January 1941
Retired (USAF) 1949
Primary users United States Army Air Forces
Soviet Air Force
Royal Air Force
French Air Force
Produced 1939–1944
Number built 7,478
Developed into Douglas DC-5

The Douglas A-20 Havoc (company designation DB-7) was an American attack, light bomber, and intruder aircraft of World War II. It served with several Allied air forces, principally the United States Army Air Forces (USAAF), the Soviet Air Forces (VVS), Soviet Naval Aviation (AVMF), and the Royal Air Force (RAF) of the United Kingdom. Soviet units received more than one in three (2,908 aircraft) of the DB-7s ultimately built. It was also used by the air forces of Australia, South Africa, France, and the Netherlands during the war, and by Brazil afterwards.

In British Commonwealth air forces, bomber/attack variants of the DB-7 were usually known by the service name Boston, while night fighter and intruder variants were usually known as Havoc. An exception to this was the Royal Australian Air Force, which referred to all variants of the DB-7 by the name Boston. The USAAF referred to night fighter variants as P-70.

In March 1937, a design team headed by Donald Douglas, Jack Northrop and Ed Heinemann produced a proposal for a light bomber powered by a pair of 450 hp (336 kW) Pratt & Whitney R-985 Wasp Junior radial engines mounted on a shoulder wing. It was estimated that it could carry a 1,000 lb (454 kg) bomb load at 250 mph (400 km/h). Reports of aircraft performance from the Spanish Civil War indicated that this design would be seriously underpowered, and it was subsequently cancelled.


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