Comparison of Boeing B-29 Superfortress and Boeing B-47 Stratojet [S]ave
| Attribute |  Boeing B-47 Stratojet × |  Boeing B-29 Superfortress × |
|---|---|---|
| General | ||
| Manufacturer | Boeing | Boeing |
| Model | Boeing B-47 Stratojet | Boeing B-29 Superfortress |
| Country | United States | United States |
| Manufactured from (year) | 1947 | 1943 |
| Manufactured to (year) | 1957 | 1946 |
| Type | Military Propellor Planes | Military Propellor Planes |
| Icao | B47 | B29 |
| Performance | ||
| Engine | 6x General Electric J47-GE-25 | 4x Wright R-3350-23 Duplex-Cyclone |
| Power, hp (hp) | - | 2,200 |
| Power, lbf (lbf) | 7,200 | - |
| Avionics | AN/APG-39, AN/APG-32, AN/APD-4 etc. | - |
| Max cruise speed (km/h) | 976 | 587 |
| Approach speed (km/h) | - | 169 |
| Travel range (km) | 7,478 | 9,382 |
| Service ceiling (m) | 12,344 | 9,708 |
| Rate of climb (m/sec) | 22.1 | 4.57 |
| Take off distance (m) | 2,240 | - |
| Weights | ||
| Max take off weight (kg) | 104,310 | 61,000 |
| Max payload (kg) | 11,340 | 10,000 |
| Fuel tank capacity (l) | 64,352 | 36,143 |
| Dimensions | ||
| Seats | 3 | 11 |
| Exterior length (m) | 32.64 | 30.18 |
| Tail height (m) | 8.53 | 8.46 |
| Fuselage diameter (m) | 2.8 | 2.9 |
| Wing span (m) | 35.36 | 43.05 |
| Wing tips | No Winglets | No Winglets |
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