Originally Posted by Countryboy

Yes, notice in the second photo that I posted that the end of the jig in the pipe is at the location of the pipe opening and not at the face of the bellmouth . This is the distance I have come to understand that the correct turbine exhaust nozzle to pipe distance should be gauged by. Right or wrong, the stock Jet Legend pipe in my F-4 has shown no evidence of heat related issues after 30 flights and numerous ground runs. Granted, you did have a much smaller area to work in as compared to my F-4. I just think I might have done it a little differently, however you got the job done and that's what counts. Good luck on your maiden.