| Designation: B.I, B.II, B.III,B.X,XPP |
| Model No.: 683 |
| Role: Heavy Bomber |
| Quantity in Service Canadian Service: 229 |
| Service: RCAF / RAF |
| Taken on Strength: 1944 |
| Struck off Strength: 1965 |
| Specification: | Avro Lancaster Mk I, III, X |
| Manufacturer: | Avro, Metropolitan-Vickers, Vickers Armstrong, Austin Motors, Armstrong Whitworth, Victory Aircraft Ltd. which became Avro Canada |
| Crew/Passengers: | one pilot and up to 6 crew |
| Power Plant: | Four 1,620 hp Merlin 224 engines |
| Performance: | Max Speed: 272 mph (438 km/h) Cruising Speed: 200 mph (322 km/h) Service Ceiling: 24,700 ft (7,528 m) Range: 2,530 mi (4,072 km) |
| Weights: | Empty: 35,240 lb (15,999 kg) Gross: 60,000 lb (27,400 kg) |
| Dimensions: | Span: 102 ft 0 in (31.09 m) Length: 69 ft 6 in (21.18 m) Height: 20 ft 0 in (6.10 m) Wing Area: 1,297 sq ft (120.49 sq m) |
| Armament: | Eight 0.303-in machine guns in nose dorsal and tail turrets plus one 22,000-lb bomb or up to 18,000-lb of smaller bombs. |
| Cost: | Unknown |
| Specification: | Avro Lancaster Mk II |
| Manufacturer: | Avro Aircraft |
| Crew/Passengers: | one pilot and up to 6 crew |
| Power Plant: | Four Bristol Hercules Mk XIV engines |
| Performance: | Max Speed: 264 mph (4258 km/h) Cruising Speed: 200 mph (322 km/h) Service Ceiling: 24,700 ft (7,528 m) Range: 2,547 mi (4,099 km) |
| Weights: | Empty: 35,240 lb (15,999 kg) Gross: 63,083 lb (28,614 kg) |
| Dimensions: | Span: 102 ft 0 in (31.09 m) Length: 69 ft 6 in (21.18 m) Height: 20 ft 0 in (6.10 m) Wing Area: 1,297 sq ft (120.49 sq m) |
| Armament: | Eight 0.303-in machine guns in nose dorsal and tail turrets plus one 22,000-lb bomb or up to 18,000-lb of smaller bombs. |
| Cost: | Unknown |