The Martin B-26 Marauder was a World War II twin-engined medium bomber built by the Glenn L. Martin Company. First used in the Pacific Theater in early 1942, it was also used in the Mediterranean Theater and in Western Europe.

After entering service with the U.S. Army, the aircraft received the reputation of a "Widowmaker" due to the early models' high rate of accidents during takeoff and landings. The Marauder had to be flown at exact airspeeds, particularly on final runway approach and when one engine was out. The 150 mph (241 km/h) speed on short final runway approach was intimidating to pilots who were used to much slower speeds, and whenever they slowed down below what the manual stated, the aircraft would 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). After aerodynamic and design changes, the aircraft distinguished itself as "the chief bombardment weapon on the Western Front" according to a United States Army Air Forces dispatch from 1946. 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 service separate from the Army in 1947, all Martin B-26s had been retired from US service. The Douglas A-26 Invader then assumed the B-26 designation.

General characteristics

• Crew: 7: (2 pilots, bombardier, navigator/radio operator, 3 gunners)
• Length: 58 ft 3 in (17.8 m)
• Wingspan: 71 ft 0 in (21.65 m)
• Height: 21 ft 6 in (6.55 m)
• Wing area: 658 ft² (61.1 m²)
• Empty weight: 24,000 lb (11,000 kg)
• Loaded weight: 37,000 lb (17,000 kg)
• Powerplant: 2 × Pratt & Whitney R-2800-43 radial engines, 2,000-2,200 hp (1,491 kW) each

Performance

• Maximum speed: 287 mph (250 knots, 460 km/h) at 5,000 feet (1,500 m)
• Cruise speed: 216 mph (188 knots, 358 km/h)
• Landing speed: 114 mph (90 knots, 167 km/h))
• Combat radius: 1,150 mi (999 nmi, 1,850 km)
• Ferry range: 2,850 mi (2,480 nmi, 4,590 km)
• Service ceiling: 21,000 ft (6,400 m)
• Wing loading: 46.4 lb/ft² (228 kg/m²)
• Power/mass: 0.10 hp/lb (170 W/kg)

Armament

• Guns: 12 × .50 in (12.7 mm) Browning machine guns
• Bombs: 4,000 pounds (1,800 kg)