MOSCOW, May 16. /TASS/. The Kamov design bureau is developing a new coaxial helicopter for defense missions to fly at a speed of over 500 km/hr, Director of the Aviation Industry Department at ...

Most striking of all is the double-helix, contra-rotating main rotor assembly, something that no American military helicopter has ever had before. The compound coaxial design of the Raider X means ...

The rotor system was developed for the CoAX 600 ultra-light helicopter. With a take-off weight of 600 kg, it is the first in its class and the use of the coaxial rotor system has made it possible to ...