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Control of flight speed
at the ornithopter model EV8

A flying model - especially an ornithopter in power flight - is flying optimally only in a relatively small speed range.

In gliding flight the elevator unit normally works as an automatic speed controller. Nevertheless in practice it comes to great speed fluctuations by radio-control commands and in powered flight (Please look at Flight stability of ornithopters).

With the EV8 an electric controller should ensure the keeping of the optimal power flight speed. Then the slope angle will only be influenced by thrust resp. by the stroke speed. More or less thrust results in more or less climbing.