BK117 C-2 Helicopter
World’s Most Quiet Helicopter
The C-2 achieves a large margin (6.7 EPNdB: approx. 50% reduction) from the external noise regulation standard set by Japan’s Civil Aeronautics Act, making it one of the quietest helicopters in its class.
The BK 117 is a twin-engine, multi-purpose, high-performance helicopter, jointly developed with Airbus Helicopters Deutschland (AHD) of Germany. It was certified in 1982 by JCAB as the first domestically manufactured helicopter in Japan. As the latest model, the C-2 features improved performance, owing to composite materials and a one-piece cabin frame, among others.