Mark Supinski wrote:
> Great minds think alike -- that is exactly the same formula I have
> been
> planning on, Jerry.  The only difference is deciding which also feeds
> the VAM muffler -- gotta push some air through the center tube to cool
> the thing.

Y'know, the delta T between the fresh air and VAM metal isn't much
greater than the delta T between the under-cowl air and the VAM metal.
Maybe you can put a fan to pull under-cowl air and shove it through the
VAM muffler?

Russell Kent

Russell,
Maybe the under cowl air is higher because of the heat radiating from the
muffler.

I'm developing a VAM with cooling air through the centre and through a
double outer skin which also acts as a heat shield. It does add weight and
would be wonderful in Inconel but in 304 and 321 it's still expensive
because the design uses a number of cones.
George ( down under)


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