It's only fair that I post this, its Comp-Arf responce to the incident that occurred with the Australian teams SU-27...I have high regards towards Comp Arf and thier team in responding to my concerns.


Dear Jose,

even the owner himself does not know what might have caused this to happen. I personally am flying my airplane with even only one servo on the slat and never had a single issue. With dual servos there is absolutely no way that this can happen unless a linakage would fail, accidentally not be connnected, servos running asyncron, or whatever. As you know, the slat has even a lock pin in the root area so that it would never be able to fail all the way. It has been a totally isolated incidence. We tried to analyze this very seriously but we are at total loss of what has happened. We come to the conclusion that it must have been some un-noticed servo or linkage or programming issue.*

There is no failure potential or even the slightest risk of failure if servos and linkages are installed properly. Nothing is pointing towards anything to be modified, reinforced, changed….

Keep in mind if you have a taileron servo failure the potential of your SU going in is way higher than that ever a slat would fail.*

You and any other SU-27 owner should not *be concerned at all. If there was the slightest issue we would have been professional enough to post our findings to anyone who owns an airplane. But there is nothing wrong with the design or structure.


Best regards

Andreas