The Martin XB-27 (Martin Model 182) was an aircraft 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 Martin's own B-26 Marauder. The XB-27 remained on paper, and no prototypes were built.

Specifications (as designed)

Data from ^[1]

General characteristics

• Crew: 7
• Length: 60 ft 9 in (18.52 m)
• Wingspan: 84 ft 0 in (25.60 m)
• Height: 20 ft 0 in (6.10 m)
• Powerplant: 2 × Pratt & Whitney R-2800-9 , 2,000 shp (1,500 kW) each
• Propellers: 4-bladed constant-speed propellers

Performance

• Maximum speed: 280 mph (450 km/h, 240 kn)
• Range: 2,900 mi (4,700 km, 2,500 nmi)
• Service ceiling: 33,500 ft (10,200 m)
• Power/mass: 0.12 hp/lb (0.20 kW/kg)

Armament

• Guns:
  
  • 3 × .30 in (7.6 mm) machine guns
  • 1 × .30 in (7.6 mm) machine gun
• Bombs: >4,000 lb (1,800 kg)