Page 9 - RAFEW A

Avro Lancaster B Mk I and B Mk III

Origin: A V Roe Ltd; also Armstrong Whitworth,

Austin Motors, Metropolitan-Vickers and

Vickers Armstrong UK.

Type: Long range heavy bomber with crew of 7.

Engines: Mk I Four 1,460hp Rolls-Royce Merlin 20 or

22 vee-12 liquid cooled.

Mk III Four 1,460hp Packard built Rolls-

Royce Merlin 20 or 22 vee-12 liquid cooled.

Dimensions: Span 102ft 0in (31.10m); length 69ft 4in (21.10m); height 19ft 7in (5.97m).

Weight: Empty 36,900lb (16,705kg); loaded 68,000lb (30,800kg)

Performance: Maximum speed 287 mph (462km/h) at 11,500 ft (3,500m); cruising speed 210
mph (338km/h); climb at maximum weight to 20,000 ft (6095m) 41 minutes; service ceiling
24,500 ft (7467m) range with 14,000lb (6350kg) bombs 1,660miles (2675km).

Armament: Frazer Nash turrets situated at the front and dorsal positions each with two 0.303in
Browning machine guns. Frazer Nash turret at rear with four 0.303in machine guns. Bomb load
up to 14,000lb (6350kg) internally.

History