Here is an interesting idea.
the spring keeps the heat shield spaced out
from the tangential muffler and allows air to
flow through for cooling.

Paul Lamar

To my mind, all that spring is doing is increasing the rate of heat transfer from the muffler to the heat shield. Sort of defeats the whole purpose of the shield.
Charlie Kuss

 
The AirCraft Rotary Engine NewsLetter.              Powered by Linux.

http://home.earthlink.net/~rotaryeng/            http://www.linux.org