Bell V-280 Valor 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 Bell V-280 Valor is faster: 565 km/h against 457 km/h for the Sikorsky–Boeing SB-1 Defiant. The Bell V-280 Valor flies further: 1,480 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 14.2 m for the Bell V-280 Valor. The Bell V-280 Valor is heavier at takeoff: 14 tonnes against 14 tonnes for the Sikorsky–Boeing SB-1 Defiant. The Bell V-280 Valor first flew in 2017, 2 years before the Sikorsky–Boeing SB-1 Defiant (2019).
| Bell V-280 Valor | Sikorsky–Boeing SB-1 Defiant |
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| Top speed | 565 km/h (351 mph) | 457 km/h (284 mph) |
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| Range | 1,480 km (920 miles) | 900 km (559 miles) |
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| Length | 15.4 m (51 ft) | 15.5 m (51 ft) |
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| Wingspan | 14.2 m (47 ft) | 15.2 m (50 ft) |
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| Max takeoff weight | 14 t (30,864 lb) | 14 t (29,983 lb) |
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| First flight | 2017 | 2019 |
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| Crew and capacity | 4 crew, 14 troops | 2 pilots and a cabin for troops |
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| Engines | 2 × Rolls-Royce AE 1107F turboshaft, tilting rotors | 2 × Honeywell T55 turboshaft, plus a pusher propeller |
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| Built by | Bell | Sikorsky / Boeing |
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| Country | USA | USA |
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