I am pilot of EuroFox, Ultralight which one can consider as being asmall or large brother of KitFox. (AvidFlyert, AppoloFox),practically identical, both in its construction quality and its flight qualities.


https://photos.app.goo.gl/aMuSmvz2TUjqWznL6


Since October lastyear I installed the SuperEco in my EuroFox. After looking on Facebook for a certain number of comments on the use of such a solution on ULMs with Flaperons, I decided to put trim taps on the two Flaperons (Roll) and a trim tap for the Pitch. Thus I obtain a symmetry between the two Flaperons, especially when the flaps are used.


On the flaperons,the trim taps are of medium size (20 cm by 4 cm), which represents a little more than half of the surface recommended by Aircraft Automation. For the Pitch I made a trim tap of 30 cm by by 5 cm).
After assembling the servo motors fixed on the Flateron, I decided to put the servo motor inside the Flaperons in order to reduce drag and weight. The influence of trim tabs on Flaterons is positive. A flight test measures this influence, and the resulting pressure on the stick when they are in various positions. The SuperEco parameters allow this test to be carried out in flight.
So far I haven't had a flutter/balance problem.


https://photos.app.goo.gl/Ep37ABMirzY9pxfh7


I also watched theCory Robin's video about using the Supereco AP. I did not observe that the tabs was constantly in motion. Maybe, this may be due to an unstable atmosphere.


The adjustment of the whole is not very simple. A set of parameters in the SuperEco make it possible to adjust the reactions of the ULM to changes in altitude or direction. After several tries I am still not 100%satisfied, despite the help from the boss of Aircraft Automation(Carlos).


I will, when the weather will be better, continue my tests and adjustments of the SuperEco.


Note: please excuse my English.


Jean-Pierre