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The UVH - 170 unmanned helicopter of UAVOS continues to prove its value to mountainous areas operations by flying surveillance missions at an altitude of 16,400ft (5000m). The UVH-170 has successfully conducted its first high altitude flight reaching out to the height of 16,400ft (5000m). The rotary-wing platform was carrying the Gyro-stabilized two-axis gimbal with integrated Radio data link. The payload was of 8,800lb (4kg) weight. The flight time was two hours and the climb rate over 1m/s was from 13,120ft to 16,400ft (4000m to 5000m). The UAV high altitude capability has been achieved through modifying the fuel injection system of the 4-stroke gasoline propulsion system. The enhancements of the fuel injection system enable the practical ceiling to be increased significantly. It can be very precisely tuned depending on the operating conditions. The UAV engine improved fuel injection technology significantly increases fuel-efficiency of rotary-wing UAV.
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