WORLDS FASTEST HELICOPTER Airbus X3 Hybrid Helicopter 255 Knots 472 km h videos The Eurocopter X3 (X-Cubed) is an experimental high-speed compound helicopter under development by Eurocopter. On June, 20th 2013 a Bloomberg L.P. .\r
\r
The Eurocpter X3 display at the Paris Airshow, Le Bourget. This high-speed experimental helicopter Gyrodyne recently made 255kts equal to 472 km/h or 293 .\r
\r
WORLDS FASTEST HELICOPTER Airbus X3 Hybrid Helicopter 255 Knots 472 km/h. The Airbus X3 (X-Cubed) is an experimental high-speed compound .\r
\r
Stealth Aircraft, Air Defense, Military news, Tanks, Helicopters, World Best, Nuclear Missiles, Videos Populaires p VP8 Vorbis MiG-35 - multi-role fighter of 4 + + .