I do agree that if the elevator is in tact and functioning that the trim tab
can control the aircraft. And with the aid of power management climbs and
desents are quite possible. Make sure you install an inspection hole so
that you can take a good look for cracks. I personall am not aware of any
KR control system failures. On a lot of KR like mine you can see the
control horn. However, a failure of the elevator is not likely to happen
where both cables become unattached at the same time.. The only possible
way that the elevator could fail in that manner would be for the control
horn of the KR to fail on both sides at the same time. It is more likely
that only one side would fail, or another component could fail. If the
stick were to fail, the cables or push pull tube would be still attached.
If only one cable failed the other cable would be attached on one side and
the other would be dragging inside the belly. In that cases the trim tab
would have to compensate for what ever was left still attached, possibly the
one cable or the push pull tube. I still think that the biggest danger
would be from flutter from the inbalance created by the loss of only part of
the system.
Orma aka AviationMech
19 Years flying the KR-2
Orma L. Robbins Michigan
o...@aviation-mechanics.com
