I had the safe RX from my brothers crashed corsair safe, and I used it in the Parkzone PNP T-28, and it works great. I have talked with others that have used both this RX and the Apprentice Safe RX in many planes and as long as you keep the orientation of the rx the same, and check servo directions many planes can be adapted to use the Safe RX. There are gain issues on some planes, but moving servo horns around usually takes care of the issues.
