Challis-hEliPlane.com provides resources about the Challis Heliplane aircraft
About Challis-hEliPlane.com
The development of the Heliplane has been in progress for over five decades. Many helicopter companies around the world have seriously pursued this goal of designing an aircraft that can effectively accomplish two separate functions, first; being capable of flying in a continuous stable hover, and second; being capable of flying at a reasonable cruising speed.
