I agree on the elevator servo location. We will send feedback to the factory and see about relocating those. As far as the bypass, I never use them. All my jets fly with just a bellmouth on the pipe. The L-39 fuse is very wide. Larger than most in the turbine area so I feel with the right setup and correct pipe size and pipe to turbine gap there should be no problems. I think the supplied pipe is a bit small for my P-70 and causing some heat related issues. Wagner has the factory working on a larger pipe. I think that will solve any heat issues.

I was planning to fly the L-39 today but the weather is a washout. Next weekend I have a full scale airshow to attend(Thunderbirds) so I am not sure I will get to do any flying before the Liberty Bell Jet Rally. My line up for that event is my FeiBao Panther and Tamjets A-4 Skyhawk. The L-39 takes a back seat again. I will hopefully get some time on this bird soon. I only have one flight on it!