I have had this idea in the back of my mind since I was a kid... and reading all the posts and watching the videos of all the 3D flight... I have finally decided to ask this question... my idea is for a profile "helicopter" which is built for all intents and purposes like a profile "plane" except that it is intended to fly in hover mode indefinitely.... the biggest problem will be to get the thrust to weight ratio correct.... the second biggest would be to get the control surfaces sized appropriately... and thirdly... build it so it balances nicely... any comments or suggestions would be welcome... thank you