Boulton & Paul Overstrand - Specifications

Specifications

Data from the British Bomber since 1914

General characteristics

• Crew: three or four; pilot and two-three gunners
• Length: 46 ft 0 in (14.02 m)
• Wingspan: 72 ft 0 in (21.95 m)
• Height: 15 ft 6 in (4.73 m)
• Wing area: 980 ft² (91.1 m²)
• Empty weight: 7,936 lb (3,607 kg)
• Max. takeoff weight: 11,923 lb (5,420 kg)
• Powerplant: 2 × Bristol Pegasus II.M3 9 cylinder radial engine, 580 hp (433 kW) each

Performance

• Maximum speed: 148 mph (129 knots, 238 km/h) at 6,500 ft (1,980 m)
• Range: 545 mi (474 nmi, 872 km)
• Service ceiling: 21,300 ft (6,490 m)
• Wing loading: 12.2 lb/ft² (59.4 kg/m²)
• Power/mass: 0.097 hp/lb (0.16 kW/kg)
  
• Climb to 6,500 ft (1,980 m): 5 min 24 sec

Armament

• Guns: 3 × .303 in (7.7 mm) Lewis guns in nose turret, dorsal and ventral gun positions
• Bombs: 1,500 lb (680 kg) bombs (2 × 500 lb/227 kg and 2 × 250 lb/113 kg) and 4 × 20 lb (9 kg) bombs could be carried on fuselage racks by the cockpit and dorsal gun position