Boeing X-32 vs Sikorsky–Boeing SB-1 Defiant
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 Boeing X-32 is faster: 1,931 km/h against 457 km/h for the Sikorsky–Boeing SB-1 Defiant. The Boeing X-32 flies further: 1,574 km against 900 km for the Sikorsky–Boeing SB-1 Defiant. The Sikorsky–Boeing SB-1 Defiant has the wider wingspan: 15.2 m against 11 m for the Boeing X-32. The Boeing X-32 is heavier at takeoff: 17 tonnes against 14 tonnes for the Sikorsky–Boeing SB-1 Defiant. The Boeing X-32 first flew in 2000, 19 years before the Sikorsky–Boeing SB-1 Defiant (2019).
| Boeing X-32 | Sikorsky–Boeing SB-1 Defiant |
|---|
| Top speed | 1,931 km/h (1,200 mph) | 457 km/h (284 mph) |
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| Range | 1,574 km (978 miles) | 900 km (559 miles) |
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| Length | 13.7 m (45 ft) | 15.5 m (51 ft) |
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| Wingspan | 11 m (36 ft) | 15.2 m (50 ft) |
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| Max takeoff weight | 17 t (37,919 lb) | 14 t (29,983 lb) |
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| First flight | 2000 | 2019 |
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| Crew and capacity | 1 pilot | 2 pilots and a cabin for troops |
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| Engines | 1 × afterburning turbofan | 2 × Honeywell T55 turboshaft, plus a pusher propeller |
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| Built by | Boeing | Sikorsky / Boeing |
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| Country | USA | USA |
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