Thank You for the kind words.
Wayne-RCU,
Did I insult you?
With all due respect, do you have any idea how difficult it was for me to watch that Heli video? I have less than absolutely no interest in Helis.
That's just the way it is.
Also, I saw no "rings" in the exhaust of that heli, unless I missed it? A possibility, I did blink a bit.
Charles, I used the 70mm R/C Lander system like Phil was talking about. I know they make also a 90mm and a 120mm light set. I was told there is smaller a 50mm set.
OK, that's fine, but it doesn't help me. I'm setting my airframe up for a Stumax 100mm, what I need is "EXACT" measurements of the rings, ID and OD. Nothing else said will work or help me.
If you cut a cardboard ring from the measurements that Phil gave you (this is how i did it also) and then you will know for sure if it will fit in you airframe.
Yes, I can figure that one out and I did that.
Is "Phil's/Chanco's ring from a 70mm, a 90mm? That's the next question?
Maybe it doesn't sound like it, but this is helping me and I honestly appreciate it.
The manufacturer should list the sizes available.
Charles