Sukhoi Su-47 Berkut vs NASA X-43A
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 NASA X-43A is faster: 11,000 km/h against 2,200 km/h for the Sukhoi Su-47 Berkut. The Sukhoi Su-47 Berkut flies further: 3,300 km against 500 km for the NASA X-43A. The Sukhoi Su-47 Berkut has the wider wingspan: 16.7 m against 1.5 m for the NASA X-43A. The Sukhoi Su-47 Berkut is heavier at takeoff: 35 tonnes against 1.36 tonnes for the NASA X-43A. The Sukhoi Su-47 Berkut first flew in 1997, 7 years before the NASA X-43A (2004).
| Sukhoi Su-47 Berkut | NASA X-43A |
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| Top speed | 2,200 km/h (1,367 mph) | 11,000 km/h (6,835 mph) |
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| Range | 3,300 km (2,051 miles) | 500 km (311 miles) |
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| Length | 22.6 m (74 ft) | 3.7 m (12 ft) |
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| Wingspan | 16.7 m (55 ft) | 1.5 m (5 ft) |
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| Max takeoff weight | 35 t (77,161 lb) | 1.36 t (2,998 lb) |
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| First flight | 1997 | 2004 |
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| Crew and capacity | 1 pilot | No crew: it is a robot plane |
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| Engines | 2 × Aviadvigatel D-30F6 turbofan | 1 × scramjet (an air-breathing engine for hypersonic speed) |
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| Built by | Sukhoi | NASA |
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| Country | Russia | USA |
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