Martin XB-27 - Definition and Overview

The Martin XB-27 (Martin Model 182) was a plane proposed by the Glenn L. Martin Company to fill a strong need in the United States Army Air Corps for a high-altitude medium bomber. Its design was based approximately on that of the B-26 Marauder. The XB-27 never made it past paper, and no prototypes were built.

Specifications (XB-27)

General Characteristics

• Crew: seven
• Length: 60 ft 9 in (18.52 m)
• Wingspan: 84 ft 0 in (25.61 m)
• Height: 20 ft 0 in (6.10 m)
• Wing area: ft² ( m²)
• Empty: lb ( kg)
• Loaded: 32,970 lb (14,986 kg)
• Maximum takeoff: lb ( kg)
• Powerplant: 2× Pratt & Whitney R-2800-9 radial engines, 2,000 hp (1,492 kW) each

Performance (estimated)

• Maximum speed: 279 mph (446 km/h)
• Range: 2,900 miles (4,640 km)
• Service ceiling: 33,500 ft (10,213 m)
• Rate of climb: ft/min ( m/min)
• Wing loading: lb/ft² ( kg/m²)
• Power/Mass: 0.12 hp/lb (0.20 kW/kg)

Armament

• 3× .30-calibre machine gun
• 1× .50-calibre machine gun
• > 4,000 lb (1,818 kg) of bombs

References

• USAF Museum (http://www.wpafb.af.mil/museum/research/bombers/b3-26.htm)

Related content

Related development:

Comparable aircraft:

Designation sequence: B-24 - B-25 - B-26 - XB-27 - XB-28 - B-29 - XB-30

See also:

• List of military aircraft of the United States
• List of bomber aircraft