The Douglas A-20/DB-7 Havoc was a family of American attack, light bomber and night fighter aircraft of World War II, that served with several Allied air forces, principally those of the Soviet Union, United Kingdom, and United States. The DB-7 was also used by the air forces of Australia, South Africa, France, and the Netherlands during the war, and Brazil afterwards. The bomber aircraft was known as Boston among British and Commonwealth air forces, while the Royal Air Force night fighter variants were given the service name Havoc. The United States Army Air Forces assigned the DB-7 the designation "A-20" and gave it the popular name "Havoc".
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 high-mounted 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.
Although not the fastest or longest-ranged in its class, the Douglas DB-7 series distinguished itself as a tough, dependable combat aircraft with an excellent reputation due to its speed and maneuverability. In a report to the British Aeroplane and Armament Experimental Establishment (AAEE) at RAF Boscombe Down, test pilots summed it up as "has no vices and is very easy to takeoff and land... The aeroplane represents a definite advantage in the design of flying controls... extremely pleasant to fly and manoeuvre." Ex-pilots often consider it their favorite aircraft of the war due to the ability to toss it around like a fighter. Its true impact was that the Douglas bomber/night fighter was extremely adaptable and found a role in every combat theater of the war and excelled as a true "pilot's aeroplane."
When DB-7 series production finally ended on 20 September 1944, a total of 7,098 had been built by Douglas and a further 380 by Boeing.
Info: Douglas A-20G Havoc - "Miss Pam", 388th BS, 312th BG, USAAF, New Guinea, 1944