On Jul 8, 6:21*pm, "Stuart & Kathryn Fields" wrote:
I'm looking for a source of 1 1/2" flexible exhaust tubing. *Mild steel is
acceptable. *I want to use it for a model of the headers of a tuned exhaust
for my 0320 Lycoming engine that I have mounted in my Baby Belle helicopter.
The idea is to have 4 equal length pieces attached to exhaust flanges bolted
to the cylinders, arrange the 4 pieces to intercept the 4-into-1 collector,
coat the tubing with epoxy resin so that the shape is maintained and then
present these pieces to be copied by the exhaust bender.

Stu

http://www2.cip1.com/ProductDetails....ode=C13%2D3499

Aluminum "wrinkle belly" tubing should hold it's shape nicely. This
stuff is a little oversize. Great Plains Aircraft Supply carries this
stuff too, if you want to support an aviation vendor.