ORIGINAL: George
Okay, NOW I know what those pieces are and where they go!
Joe was correct, but I couldn't picture it in my head until I saw where they actually were after getting a good look in some light. They go on the outside of the inner pipe and are supposed the cover the ''small'' holes created at the top and bottom of the V. The reason I found it is because I can see ''daylight'' at the top and bottom of the V when looking in the pipe. If I can see daylight, then heat is escaping from the inner pipe and will eventually burn a bigger hole.
I guess this was a good exercise and I would suggest everyone do an inspection.
Yup that's exactly where they go George sorry I didn't explain it a little more clearly. Just curious you mentioned your sending your yellow pipe to Tam? What is he going to do with it? Use it for measurements? You can PM me if nesecerry.
Gunradd is Tams thrust vector pipe different in design from the YA? How much work is involved to make it work?