Antonov An-225 Mriya vs Stratolaunch Roc
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 Antonov An-225 Mriya is faster: 850 km/h against 460 km/h for the Stratolaunch Roc. The Antonov An-225 Mriya flies further: 4,000 km against 3,700 km for the Stratolaunch Roc. The Stratolaunch Roc has the wider wingspan: 117 m against 88.4 m for the Antonov An-225 Mriya. The Antonov An-225 Mriya is heavier at takeoff: 640 tonnes against 590 tonnes for the Stratolaunch Roc. The Antonov An-225 Mriya first flew in 1988, 31 years before the Stratolaunch Roc (2019).
| Antonov An-225 Mriya | Stratolaunch Roc |
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| Top speed | 850 km/h (528 mph) | 460 km/h (286 mph) |
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| Range | 4,000 km (2,485 miles) | 3,700 km (2,299 miles) |
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| Length | 84 m (276 ft) | 72.5 m (238 ft) |
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| Wingspan | 88.4 m (290 ft) | 117 m (384 ft) |
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| Max takeoff weight | 640 t (1,410,944 lb) | 590 t (1,300,714 lb) |
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| First flight | 1988 | 2019 |
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| Crew and capacity | 250 t payload | Carries test vehicles between its hulls |
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| Engines | 6 × D-18T turbofan | 6 × PW4056 turbofan |
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| Built by | Antonov | Scaled Composites |
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| Country | USSR (Ukraine) | USA |
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