Specifications (Y1B-9A)
Data from United States Military Aircraft since 1909
General characteristics
- Crew: 4
- Length: 52 ft 0 in (15.85 m)
- Wingspan: 76 ft 10 in (23.42 m)
- Height: 12 ft 0 in (3.66 m)
- Wing area: 954 ft² (88.7 m²)
- Empty weight: 8,941 lb (4,064 kg)
- Max. takeoff weight: 14,320 lb (6,500 kg)
- Powerplant: 2 × Pratt & Whitney R-1860-11 Hornet radial engine, 600 hp (448 kW) each
Performance
- Maximum speed: 188 mph (163 knots, 302 km/h) at 6,000 ft (1,830 m)
- Cruise speed: 165 mph (143 knots, 265 km/h)
- Range: 540 mi (470 nmi, 869 km)
- Service ceiling: 20,750 ft (6,325 m)
- Rate of climb: 900 ft/min (4.6 m/s)
Armament
- Guns: 2× .30 in (7.62 mm) machine guns
- Bombs: 2,260 lb (1,030 kg) bombs
Read more about this topic: Boeing YB-9