Power & Performance
Those special qualities that separate one aircraft design from another. Performance specifications presented assume optimal operating conditions for the Sikorsky-Boeing Defiant X Compound Helicopter Proposal.
2 x Honeywell HTS7500 turboshaft engines developing 7,500 horsepower each to drive 2 x Four-bladed main rotors in co-axial arrangement over the fuselage and 1 x Six-bladed tail rotor arranged in "pusher" configuration.
Propulsion
295 mph
475 kph | 256 kts
Max Speed
9,843 ft
3,000 m | 2 miles
Service Ceiling
280 miles
450 km | 243 nm
Operational Range