Flying Lightning! Japan's High Speed Attack-helicopter taking shape HD

Japan develope High Speed Attack-helicopter that could reach speeds of up to 270kt (500km/h). Support us: https://www.paypal.com/paypalme/weaponsoftheworld When it comes to the most technically advanced helicopters on the planet, speed matters. Whether its reducing response times in emergencies or effectiveness on the battlefield, helicopter manufacturers continually push the boundaries of speed to showcase the capabilities of their latest and greatest aircraft. Helicopters reaching these high speeds, run into a phenomenon called the flow separation boundary which is greater in twin-rotor designs. Which is one reason why helicopter designs are becoming more elaborate, with many manufacturers turning to hybrid designs to achieve stable higher speeds.