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B-10 Martin, U.S. Medium Bomber


Photograph of B-10 Martin

USAF


Martin B-10


Specifications:


Crew 4 or 5
Dimensions 70’6” x 45’ x 15’5”
21.49m by 13.72m by 4.70m
Wing area 678 square feet
63.0 square meters
Weight 8870-14,600 lbs
4023-6622 kg
Speed 213 mph (343 km/h) at 10,000 feet (3000m)
196 mph (315 km/h) at sea level
Cruising speed       193 mph
311 km/h
Landing speed 65 mph
105 km/h
Climb rate 24 feet per second
7.4 m/s
Service ceiling 25,200 feet
7680 m
Power plant 2 775 hp (578 kW) Wright R-1820-33 9-cylinder radial engines driving three-blade variable pitch propellers.
Armament 1 0.30 machine gun in nose turret
1 0.30 machine gun in rear cockpit
1 0.30 machine gun in rear ventral hatch
Bomb load 2000 lbs
907 kg
Range 1240 miles (2000 km) with 2000 lbs (907 kg) bombs
1830 miles (2900 km) ferry.
Fuel 226-452 gallons (856-1710 liters)
720 gallons (2700 liters) ferry
Production 479 by 1936 at Glenn L. Martin Company, Cleveland, OH.
Variants The B-10, B-12, and B-14 were minor variations on the basic Model 139.

The Model 166 had an improved “greenhouse” canopy.


The Martin Bomber was an innovative bomber design when it first entered production in 1936, with such advanced features as cantilevered wings, flaps, all-metal monocoque construction, retractable landing gear, and variable pitch propellers. However, it was hopelessly obsolete by the start of the Pacific War, and most of those still with U.S. forces were converted to target tugs.

The Dutch had deployed about 138 in the Netherlands East Indies when war broke out, and they were more successful in combat than they had any right to be.

References

Gunston (1986)



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