World's smallest helicopter tested in Moscow

The world's smallest helicopter was tested in Moscow. This aircraft weighs only 70kg and it made an entry into the Guinness Book of Records.

	World's smallest helicopter tested in Moscow
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The helicopter was designed by the President of Engineering System Co. Japan, Mr. Gennai Yanagisawa. The company officials say that it usually takes about 40 hours to assemble the helicopter.

The aircraft looks like a chair on the wheels with two helicopter vanes.

The helicopter is capable of reaching a maximum speed of 60 mph and a height of 3,000 meters.

The frame of the GEN H-4 is made of two-inch aluminum pipes. Located in front of the pilot is the control pod with the throttle, tachometer, main switch, starter switch and yaw switch. Four GEN125 engines power this helicopter.

The helicopter is powered by four engines which make it safe. If one or two of the engines stop working, two other engines will be powerful enough to continue the flight. For emergency situations the helicopter is equipped with the parachute.

The lightweight transmission consists of cast aluminum upper and lower cases with a total of 27 precision ground, with heat-treated gears sandwiched in between. Two rotors travel in opposite directions, keeping the helicopter stable by counteracting each other's torque, so that there is no need for a tail rotor. Yaw is controlled through a differential gear within the transmission, driven by an electric motor. The fuel type required is a 30:1 mixture of automobile gasoline and two stroke oil.

For those Russians who want to become the owners of the aircraft, the helicopter is available at the price of 2 million rubles ($65,000).

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