Wikipedia
Keystone B-4
Read the full article about the Keystone B-4 on Wikipedia: history, variants, operators and specifications.
Read on Wikipedia- First flight1930
- StatusRetired
- Number built30
Specifications
01
Crew & dimensions
- Crew
- 5
- Length
- 14.9 m (48 ft 10 in)
- Wingspan
- 22.8 m (74 ft 8 in)
- Height
- 4.8 m (15 ft 9 in)
02
Performance
- Maximum speed
- 210 km/h (130 mph, 110 kn)
- Range
- 1,400 km (850 mi, 760 nmi)
- Service ceiling
- 4,300 m (14,000 ft)
03
Powerplant
- Powerplant
- 2 × Pratt & Whitney R-1860-7 radial engines (575 hp / 429 kW / shp / lbf / kN)
04
Armament
- Armament
- Guns: 3 ×.30 in (7.62 mm) Browning machine guns; Bombs: 2,500 lb (1,100 kg); 4,000 lb (1,800 kg) on short runs
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