Challis Heliplane
World's Fastest Rotorcraft - 300+ mph Heliplane

Challis Heliplane Animated Demonstration

Welcome to Challis Heliplane  

The Challis Heliplane was developed to expand the flight envelope of present day rotorcraft and challenge the current technology of tilt rotor aircraft, such as the Bell/Boeing V-22 "Osprey".

This heliplane design offers simplicity, lower production and maintenance cost, while still providing the high-speed capabilities and maneuverability.

The Challis Heliplane can demonstrate smooth easy transition from hover to cruise, excellent control in the hover, capable of autorotation-engine off emergency landing, capable of high rate of descent, can be scaled to meet various civilian or military needs.



Learn more about Heliplane
The Challis Heliplane is a high-speed, long-range rotorcraft capable of power-off emergency landings, allowing design certification for civilian missions: presidential transport, medi-vac, search & rescue, etc.

Due to safety requirements, like the ability to execute an emergency power-off landing, there are presently no high-speed, long-range heliplanes available for civilian use.
 
Preview the Challis Heliplane Design

Challis Heliplane Flight Demonstration

Heliplane Retreating Blade Stall Solution

Retreating Blade Stall Solution  

Challis Heliplane

Investor Interests  

Learn more about the limiting factor of helicopters and how the Challis Heliplane design can overcome them.

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If you are interested in buying a challis heliplane UAV or if you have any questions or comments, please feel free to contact us.

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