United States' Martin B-26 Marauder bomber
Design
On January 25, 1939, the United States Army Air Corps (USAAC) put out a specification for a medium bomber that had high speed, long range, and could fly at a high altitude.4
The Martin Model 179 Marauder was designed for the United States Air Corps on July 5, 1939 and went straight into production without a prototype or trials.1,2 The head designer was Peyton M. Magruder.2,4 A total of 1,100 were ordered in September 1939.2,4
The first flight of the B-26 Marauder was at the factory in November 1940.1
Undercarriage
The engine nacelles housed the wheels of the tricycle undercarriage.1 The nose wheel retracted towards the rear, under the cockpit.1
Control Surfaces
To save on weight the flying control surfaces were wood ribs with fabric covers.1
Wings
The wings were placed high in the fuselage.4
Prototype
None made.1
Production
The first production model flew on November 25, 1940 (November 25, 19413).2,3,4 Production ended in April 1945.3
The B-26 Marauder cost $261,000 in 1940 and $192,000 in 1944 to build.1
- Martin B-26: 2013
- Martin B-26A: 1393,4
- Martin B-26B: 1,8832,3,4
- Produced at Martin's Baltimore, Maryland plant.2
- Production: May 1942 - ?4
- Martin B-26C: 1,2103, 1,2352,4
- Produced in Omaha, Nebraska.2,4
- Martin B-26F: 3003
- Martin B-26G: 8933
- Martin TB-26G: 573
- Total: 4,6833, 5,1571,2,4
- Manufacturer: Glenn L. Martin Company4
- Production: February 1941 - March 30, 19454
Variants
- Martin B-26: First production model.3
- Martin B-26A: Carried more fuel.3 Delivered in 1941.4
- Martin B-26B: Additional armor added.2,4 More gun added.2,3,4 Starting at aircraft 642 the wings were wider and had a taller fin.3
- Martin B-26B-10: Had 6' longer wings.4 Later designated the B-26C.4
- Martin B-26C: Similar to B-26B, but produced at a different factory.3
- Martin B-26F: Wing incidence increased by 3.5°.2,3,4
- Martin B-26G: Wing incidence increased by 3.5°.2,4
- Martin TB-26G: Trainer.3
- Martin JM-1: US Navy version of the TB-26G.3
- Martin JM-2: US Navy version of the TB-26G.3
- Martin AT-23: Target tug.3 A conversion.3
Usage
The countries that used the Marauder were Australia, Britain, France, South Africa, and the United States.3
Due to its bad reputation it was nicknamed "Widowmaker"4 and "Flying Coffin."1,3 However, by VE Day B-26s had the lowest loss rate of any American bomber in World War II.1,3 The B-26 needed an experienced pilot to concentrate on flying the B-26.4
Flak Bait
From August 16, 1943, to the end of World War II, "Flak Bait" flew 200 missions.4 It had over 1,000 flak holes covered by over 300 patches.4
Australia
The B-26 Marauders were first used by the 22nd Bomb Group, based in Australia, shortly after Pearl Harbor.1,2 They went into action over New Guinea in April 1942.2,3,4
Midway
B-26s carrying torpedoes were used at the Battle of Midway.3,4
Lyndon B. Johnson
Future president Lyndon B. Johnson received a Silver Star in a Marauder mission in New Guinea.1
Danger over Ijmuiden, Holland
An entire group of ten B-26 Marauders were lost to fighters, flak, and collisions in a mission in May 1943 over Ijmuiden, Holland.1
Royal Air Force
The Royal Air Force received 522 B-26 Marauders.1,2,4 The South African Air Force also flew the B-26 Marauder.1,2,4 In the Mediterranean the B-26 replaced the Blenheims.1
Specifications
| Martin B-26 Marauder | |
|---|---|
| Type | Medium bomber3,5 |
| Crew | 5 - 73 |
| Engine (Type) | 2: Pratt & Whitney R-2800-5 Double Wasp3 2: Pratt & Whitney Twin Wasp5 |
| Cylinders | Radial 183 |
| Cooling | |
| HP | 1,850 each3,5 |
| Propeller blades | 4 each3 |
| Dimensions | |
| Span - early models | 65'3,5 19.81 m3 |
| Span - late models | 71'3 21.64 m3 |
| Span | |
| Length | 56' - 58' 3"3, 58' 2"5 17.07 m - 17.75 m3 |
| Height | 19' 10" - 21' 6"3, 20'5 6.05 m - 6.55 m3 |
| Wing area | |
| Weight | |
| Empty | |
| Loaded | 26,600 lb5 |
| Performance | |
| Speed | 350 mph5 |
| Cruising speed | |
| Climb | |
| Service ceiling | |
| Range | 2,400 miles5 |
| Armament | |
| Nose | 1: MG5 |
| Top turret | 2: MG5 |
| Tail | 1: MG5 |
| Bombs | 1 Ton5 |
| Martin B-26A Marauder | |
|---|---|
| Type | |
| Crew | |
| Engine (Type) | 2: Pratt & Whitney R-2800-5 Double Wasp3 |
| Cylinders | Radial 183 |
| Cooling | |
| HP | 1,850 each3 |
| Propeller blades | 4 each3 |
| Dimensions | |
| Span | |
| Length | |
| Height | |
| Wing area | |
| Weight | |
| Empty | |
| Loaded | |
| Performance | |
| Speed | |
| Cruising speed | |
| Climb | |
| Service ceiling | |
| Range | |
| Armament |
| Martin B-26B Marauder | |
|---|---|
| Type | Bomber4, Medium bomber1 |
| Crew | 71,4 |
| Engine (Type) | 2: Pratt & Whitney R-2800-393, 2: Pratt & Whitney R-2800-41 Double Wasp4 |
| OR | 2: Pratt & Whitney R-2800-43 Double Wasp piston1,3 |
| Cylinders | Radial 184 |
| Cooling | Air4 |
| HP | 39: 2,000 each3 41: 2,000 each4 43: 1,920 each1, 2,000 each3 |
| Propeller blades | 4 each1 |
| Dimensions | |
| Span - early models | 63'1 19.12 m1 |
| Span - late models | 71'1 21.64 m1 |
| Span | 65'4 |
| Length | 58'1, 58' 3"4 17.75 m1 |
| Height | 19' 10"4, 21'1 6.55 m1 |
| Wing area | 679 ft2 1 61.13 m2 1 |
| Weight | |
| Empty | 22,380 lb3, 23,950 lb1 10,152 kg3, 10,886 kg1 |
| Loaded | 34,000 lb3,4, 36,923 lb1 15,422 kg3, 16,783 kg1 |
| Performance | |
| Speed @ 14,500' | 317 mph4 |
| Speed @ 15,000' / 4,570 m |
317 mph1 454 kph1 |
| Cruising speed | |
| Climb | |
| Climb to 15,000' / 4,600 m |
13 minutes1 |
| Service ceiling | 23,500'1,4 6,400 m1 |
| Range | 1,150 miles4 |
| Range with 2,994 lb / 1,351 kg of bombs |
1,148 miles1 1,851 km1 |
| Armament | 6: MG4 8: 12.7 mm MG1 4: 0.5" MG3 2: 0.3" MG3 |
| Bomb-bay | 3,000 lb4, 4,000 lb3, 5,170 lb1 1,814 kg3, 2,359 kg1 |
| Martin B-26C Marauder | |
|---|---|
| Type | Light bomber2 Medium bomber2 |
| Crew | 72 |
| Engine (Type) | 2: Pratt & Whitney R-2800-43 piston2 |
| Cylinders | Radial2 |
| Cooling | |
| HP | 2,000 each2 |
| Propeller blades | |
| Dimensions | |
| Span | 71'2 21.64 m2 |
| Length | 58' 3"2 17.75 m2 |
| Height | 20' 4"2 6.2 m2 |
| Wing area | 658 ft2 2 61.13 m2 2 |
| Weight | |
| Empty | 22,380 lb2 10,152 kg2 |
| Loaded | 34,200 lb2 15,513 kg2 |
| Performance | |
| Speed @ 15,000' / 4,570 m |
282 mph2 454 kph2 |
| Cruising speed | |
| Climb | |
| Climb to 15,000' / 4,570 m |
24.5 minutes2 |
| Service ceiling | 21,700'2 6,615 m2 |
| Range | |
| Range with 2,994 lb / 1,351 kg of bombs |
1,150 miles2 1,850 km2 |
| Armament | |
| Nose | 2: 12.7 mm MG2 |
| Fuselage sides | 4: 12.7 mm MG2 |
| Dorsal turret | 2: 12.7 mm MG2 |
| Ventral position | 2: 12.7 mm MG2 |
| Tail | 2: 12.7 mm MG2 |
| Bomb-bay | 3,000 lb2 1,361 kg2 |
| Margin B-26G Marauder | |
|---|---|
| Type | Bomber4 |
| Crew | 74 |
| Engine (Type) | 2: Pratt & Whitney R-2800-393 |
| OR | 2: Pratt & Whitney R-2800-43 Double Wasp piston1,3,4 |
| Cylinders | Radial 184 |
| Cooling | Air4 |
| HP | 39: 2,000 each3 43: 2,000 each3,4 |
| Propeller blades | 4 each3 |
| Dimensions | |
| Span | 71'4 |
| Length | 56' 1"4 |
| Height | 20' 4"4 |
| Wing area | |
| Weight | |
| Empty | 23,800 lb3 10,796 kg3 |
| Loaded | 38,200 lb3,4 17,327 kg3 |
| Performance | |
| Speed @ 5,000' / 1,524 m |
283 mph3,4 455 kph3 |
| Cruising speed | 216 mph3 347 kph3 |
| Climb | 1,000'/minute3 305 m/minute3 |
| Service ceiling | 18,800'4, 19,800'3 6,035 m3 |
| Range | 1,100 miles3,4 1,770 km3 |
| Armament | 11: MG4, 0.5" MG3 |
| Bomb-bay | 4,000 lb3,4 1,814 kg3 |
Sources:
- Aircraft of WWII, General Editor: Jim Winchester, 2004
- Fighting Aircraft of World War II, Editor: Karen Leverington, 1995
- Aircraft of WWII, Stewart Wilson, 1998
- World War II Airplanes Volume 2, Enzo Angelucci, Paolo Matricardi, 1976
- Aeronautics Aircraft Spotters' Handbook, Ensign L. C. Guthman, 1943

