Fun Helicopter Facts for Springdale, AR

The first version was produced as the R22, followed by the R22 HP, R22 Alpha, R22 Beta and R22 Beta II. Superficially, the aircraft appear similar. The R22 HP was fitted with a 160 bhp Lycoming 0-320-B2C engine, an increase of 10 bhp (7.5 kW) over the original R22.

Fun Helicopter and Airplane Facts for Springdale, AR

The first version was produced as the R22, followed by the R22 HP, R22 Alpha, R22 Beta and R22 Beta II. Superficially, the aircraft appear similar. The R22 HP was fitted with a 160 bhp Lycoming 0-320-B2C engine, an increase of 10 bhp (7.5 kW) over the original R22.

The Boeing/Sikorsky RAH-66 Comanche unveiled in 1999 is the first helicopter using stealth technology. It is made of carbon-fiber and other composite materials, and the rotor hub is hidden.