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Thread: Air powered *, Thanks & report
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face BY : Don Hyde email (remove spam text)



I'm no aerodynamicist, but I've been trying to absorb a little while
building a kitplane.

>From what I've been reading on engine cooling, what you need to do is to
convert the low-volume high-velocity airflow from your nozzle to high-volume
low-velocity for the fan.  The ideal shape for this is something similar to
an exponential horn that would feed that expanding air (to get from 8 bar to
1 it's going to get 8 times as big) to the whole fan.  It would also help to
round the upstream end of the nozzle hole.  That should improve both
efficiency and noise.

> {Original Message removed}
<117EC968C6D8D211A9520020AF155EB21A6061@ISERVER>

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