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Boeing B-17 Flying Fortress Military
Avro Lancaster Military
Quick facts
ManufacturerBoeingAvro
TypeBombersBombers
Origin🇺🇸 United States🇬🇧 United Kingdom
First flight19351941
StatusRetiredRetired
Units built12,7317,377
Unit cost——
Dimensions
Length22.66 m21.18 m
Wingspan31.62 m31.09 m
Height5.82 m6.25 m
Wing area131.9 m²120.5 m²
Weights & fuel
Empty weight16,391 kg16,571 kg
Max. take-off weight29,710 kg30,845 kg
Performance
Max. speed462 km/h454 km/h
Cruise speed293 km/h322 km/h
Range3,219 km4,073 km
Service ceiling10,850 m6,500 m
Crew & capacity
Crew107
Powerplant
Engines44
Engine type——
Engine modelWright R-1820-97 Cyclone (turbocharged radial)Rolls-Royce Merlin XX/22
Power (each)890 kW954 kW

At a glance

Max. speed

Boeing B-17 Flying Fortress
462 km/h
Avro Lancaster
454 km/h

Range

Boeing B-17 Flying Fortress
3,219 km
Avro Lancaster
4,073 km

Max. take-off weight

Boeing B-17 Flying Fortress
29,710 kg
Avro Lancaster
30,845 kg

Wingspan

Boeing B-17 Flying Fortress
32 m
Avro Lancaster
31 m

Length

Boeing B-17 Flying Fortress
23 m
Avro Lancaster
21 m

Service ceiling

Boeing B-17 Flying Fortress
10,850 m
Avro Lancaster
6,500 m

Units built

Boeing B-17 Flying Fortress
12,731
Avro Lancaster
7,377

Figures are compiled from public sources and may be approximate; they can vary by variant and configuration.