Specifications (NBS-1)
General characteristics
- Crew: 4
- Length: 42 ft 8 in (13.0 m)
- Wingspan: 74 ft 2 in (22.7 m)
- Height: 14 ft 8 in (4.8 m)
- Wing area: 1,121 ft² (104.2 m²)
- Empty weight: 7,232 lb (3,280 kg)
- Loaded weight: 12,027 lb (5,460 kg)
- Powerplant: 2 × Liberty 12-A liquid-cooled V12 engine, 420 hp (325 kW) each
Performance
- Maximum speed: 99 mph (85 kn, 160 km/h)
- Cruise speed: 92 mph (80 kn, 150 km/h)
- Range: 400 mi (345 nmi, 650 km)
- Service ceiling: 7,700 ft (2,350 m)
- Rate of climb: 391 ft/min (2.0 m/s)
Armament
- Guns: 5× .30 in (7.62 mm) Lewis machine guns
- Bombs: 1,800 lb (820 kg) internal; 2,000 lb (907 kg) external
Read more about this topic: Martin NBS-1