Yasutoshi Yokoyama flies in the air by GEN H-4, a compact single seat helicopter developed by Gen Corporation, during its test flight in Matsumoto in central Japan's Nagano Prefecture. The GEN H-4 has two rotors turning in opposite directions to maintain stability, and four engines that enable a 30-minute flight with a top speed of about 56 miles per hour.
This helicopter is the smallest model in the world in terms of weight and its rotor length of 3.9 meter. It has four twin cylinder engines and can remain in the air even if two of the engines of malfunction. The helicopter has two identical rotors that turn in opposite directions making the need for a tail rotor obsolete. The entire rotor head is supported on a gimbal, which is slanted towards the direction of travel by the control bar. The pilot can therefore change their direction by shifting their weight.
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