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Boeing B-29 Superfortress Military
Boeing B-17 Flying Fortress Military
Quick facts
ManufacturerBoeingBoeing
TypeBombersBombers
Origin🇺🇸 United States🇺🇸 United States
First flight19421935
StatusRetiredRetired
Units built3,97012,731
Unit cost——
Dimensions
Length30.18 m22.66 m
Wingspan43.05 m31.62 m
Height8.46 m5.82 m
Wing area161.3 m²131.9 m²
Weights & fuel
Empty weight33,800 kg16,391 kg
Max. take-off weight60,560 kg29,710 kg
Performance
Max. speed574 km/h462 km/h
Cruise speed350 km/h293 km/h
Range5,230 km3,219 km
Ferry range9,000 km—
Service ceiling9,710 m10,850 m
Crew & capacity
Crew1110
Powerplant
Engines44
Engine type——
Engine modelWright R-3350-23 Duplex-CycloneWright R-1820-97 Cyclone (turbocharged radial)
Power (each)1,640 kW890 kW

At a glance

Max. speed

Boeing B-29 Superfortress
574 km/h
Boeing B-17 Flying Fortress
462 km/h

Range

Boeing B-29 Superfortress
5,230 km
Boeing B-17 Flying Fortress
3,219 km

Max. take-off weight

Boeing B-29 Superfortress
60,560 kg
Boeing B-17 Flying Fortress
29,710 kg

Wingspan

Boeing B-29 Superfortress
43 m
Boeing B-17 Flying Fortress
32 m

Length

Boeing B-29 Superfortress
30 m
Boeing B-17 Flying Fortress
23 m

Service ceiling

Boeing B-29 Superfortress
9,710 m
Boeing B-17 Flying Fortress
10,850 m

Units built

Boeing B-29 Superfortress
3,970
Boeing B-17 Flying Fortress
12,731

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