Comparison of Lockheed EC-121 Warning Star and Vickers Valiant [S]ave
| Attribute |  Lockheed EC-121 Warning Star × |  Vickers Valiant × |
|---|---|---|
| General | ||
| Manufacturer | Lockheed Martin Aeronautics | Vickers-Armstrongs |
| Model | Lockheed EC-121 Warning Star | Vickers Valiant |
| Country | United States | United Kingdom |
| Manufactured from (year) | 1953 | 1951 |
| Manufactured to (year) | 1958 | 1957 |
| Type | Military Propellor Planes | Military Aircraft |
| Icao | EC121 | - |
| Performance | ||
| Engine | 4x Wright R-3350-34 Turbo Compound radial engines other | Rolls-Royce Avon RA28 Mk 204 |
| Power, hp (hp) | 3,400 | - |
| Power, lbf (lbf) | - | 10,000 |
| Avionics | - | GE Aviation Systems, Green Satin doppler radar, Gee radio navigation, (ADF), VOR/Distance Measuring Equipment (DME) |
| Max cruise speed (km/h) | 482 | 913 |
| Travel range (km) | 6,852 | 7,223 |
| Service ceiling (m) | 7,620 | 16,459 |
| Rate of climb (m/sec) | 4.88 | 20.32 |
| Weights | ||
| Max take off weight (kg) | 65,000 | 63,500 |
| Max payload (kg) | 33,600 | 29,000 |
| Dimensions | ||
| Seats | 16 | 5 |
| Exterior length (m) | 35.4 | 33 |
| Tail height (m) | 7.54 | 9.8 |
| Fuselage diameter (m) | 3.5 | 3.3 |
| Wing span (m) | 38.45 | 34.8 |
| Wing tips | No Winglets | No Winglets |
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