Hey guys thank you for visiting this channel, my name is Julius Perdana If you like to make RC plane with Depron or foam ...

This radical Sikorsky-Boeing helicopter just made its first flight The SB>1 Defiant has not one but two rotors on top, and in the rear, a pusher propeller designed to give it high-speed flight.

Some helicopter experts have questioned whether Sikorsky’s X2 should qualify as a pure helicopter, because of the propeller at its rear. Sikorsky says the “pusher prop” adds speed, but not ...

However, the twin rotor, pusher prop configuration can also be flown like a traditional helicopter if warranted. The first flight of the S-97 Raider is expected some time in 2014.

The pusher prop can also be reversed very quickly to provide negative thrust for quick braking power, and then turned off for a quieter sound signature, said Bill Fell, a former Army aviator and ...

Unlike the X2, which uses a pair of main rotors stacked one atop the other and a pusher propeller at the back, the X3 uses a more traditional main rotor layout and two propellers mounted on small ...