Northrop YA-9 vs Northrop YF-17 Cobra
Top speed, range, size and history side by side. Each was built for its own job, so this shows how they differ, not which is better.
The Northrop YF-17 Cobra is faster: 2,120 km/h against 837 km/h for the Northrop YA-9. The Northrop YA-9 flies further: 4,800 km against 4,500 km for the Northrop YF-17 Cobra. The Northrop YA-9 has the wider wingspan: 17.4 m against 10.7 m for the Northrop YF-17 Cobra. The Northrop YA-9 is heavier at takeoff: 19 tonnes against 14 tonnes for the Northrop YF-17 Cobra. The Northrop YA-9 first flew in 1972, 2 years before the Northrop YF-17 Cobra (1974).
| Northrop YA-9 | Northrop YF-17 Cobra |
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| Top speed | 837 km/h (520 mph) | 2,120 km/h (1,317 mph) |
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| Range | 4,800 km (2,983 miles) | 4,500 km (2,796 miles) |
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| Length | 16.3 m (53 ft) | 17.1 m (56 ft) |
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| Wingspan | 17.4 m (57 ft) | 10.7 m (35 ft) |
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| Max takeoff weight | 19 t (41,799 lb) | 14 t (30,644 lb) |
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| First flight | 1972 | 1974 |
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| Crew and capacity | 1 pilot | 1 pilot |
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| Engines | 2 × Lycoming YF102 turbofan | 2 × General Electric YJ101 afterburning engine |
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| Built by | Northrop | Northrop |
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| Country | USA | USA |
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