- Nov 13, 2006
- Madrid, Spain
- ELA R-100 and Magni M24 autogyros
- Total Flight Time
- 628 gyro (Sept. 2020)
Great explanation, Sportcopter!
Being from a helicopter background myself, I have always felt that the higher the RRPM during pre-rotation, the easier to manage the take off roll, because there will not be much of a take off roll. Both yours and Wolfy's videos show this concept quite clearly. IMHO, reducing the disc AOA after pre-rotation to build up forward speed is inviting a blade flap and not worth the risk for shortening the T/O distance. I prefer to build up the speed low to the ground after getting airborne.
Look forward to some more videos in calm winds.
And the barrel rolls and loops are incredible!
With gyros during the take-off run, things are different, because the flow, during pre-rotation and in the first stage of the run, is 'from above to below' (antirotating) and has to change to 'from below to above' (autorotating) so that the rotor may behave as a wing and make take-off possible... That flow inversion should take place as soon as possible, minimizing the length of 'lost runway'...