wrote:


The Aeronca muff often involved a deflector plate, attached to a small
strut across the pipe vee, that prevented the air from travelling
straight across the chamber from the inlet to the outlet. The
deflector made the air flow around the pipes to get from one side to
the other. Lots more heat. Does your have that?

Dan

Aha! No, mine do not have anything inside them. The only thing that
deflects any air is the exhaust pipes...this might be something to
investigate

Scott