Although the 679 Manchester proved to be a relative disaster for Avro, it was clear the problems were a result of the engine choice rather than the airframe, the design was made a little larger in wing span and fitted with four Rolls-Royce Merlins, this proved to be a very good combination, the resultant aircraft was destined to be produced in great numbers as the Avro Lancaster.
Manchester Mk I Specifications:
- Crew: Seven
- Length: 70 ft (21.34 m)
- Wingspan: 90 ft 1 in (27.46 m)
- Height: 19 ft 6 in (5.94 m)
- Empty weight: 31,200 lb (14,152 kg)
- Maximum takeoff weight: 50,000 lb (22,680 kg)
- Engines: Twin 1,760 hp (1,310 kW) Rolls-Royce Vulture I 24-cylinder
- Maximum speed: 265 mph (230 kn, 402 km/h) at 17,000 ft (5,180 m)
- Range: 1,200 miles (1,930 km)with full bomb load
- Service ceiling: 19,500 ft (5,852 m)
Manchester Mk I Armament:
- Guns: Eight 0.303 in (7.7 mm) Browning machine guns, 2 nose, 2 dorsal, 4 tail.
- Bombs: 10,350 lb (4,695 kg) maximum