Apr 29, 12:16 AM EDT
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Media & Culture
Roll-Royce powered Eurocopter X3 completes major milestone
on 12/23/10 AT 9:42 AM
The Rolls Royce-powered Eurocopter X3 completed its Step 1 speed objective attaining a total airspeed of 180 kts (333 km/hr) in level flight at a reduced level of engine power.