title: Beardmore W.B.1a
text: # Beardmore W.B.1a
  
  The Beardmore W.B.1a was a British two-seater long-distance bomber biplane of World War I developed by Beardmore. The pilot and observer were seated in the rear of the fuselage, just before the tail section.
  
  ## Specifications
  
  Data from
  
  General characteristics
  
  * Crew: 2
  * Capacity: 2
  * Length: 32 ft 10 in (10.01 m)
  * Wingspan: 70 ft (21 m)
  * Height: 15 ft 8 in (4.78 m)
  * Wing area: 946 sq ft (87.9 $m^2)$
  * Empty weight: 4,537 lb (2,058 kg)
  * Gross weight: 8,900 lb (4,037 kg)
  * Fuel capacity: 214 imp gal (257 US gal; 973 L)
  * Powerplant: 1 × Galloway Atlantic , 500 hp (370 kW)
  * Propellers: 4-bladed fixed-pitch propeller, 14 ft (4.3 m) diameter
  * Propeller speed: 900 rpm
  
  Performance
  
  * Cruise speed: 110 mph (180 km/h, 96 kn)
  * Endurance: 6 hours 30 minutes
  * Wing loading: 9.4 lb/sq ft (46 $kg/m^2)$
  * Power/mass: 0.058 hp/lb (0.095 kW/kg)
  