Snipped...

For these and other reasons surface heat exchangers are not too promising.

Paul Lamar

Where would be the highest speed /lowest pressure in Perry's duct?

Anyone able to run a caculation exercise on the merrits of using this
speed/pressure as a suction pump to suck air through the regular radiator?

The max speed in the duct should be quite a bit higher than the actual
aircraft speed. Would be great if you could use it! With a clean circular
augmenter/extractor one might get away without losses and a net gain with
the resulting smaller intake needed. If there is suction, a Naca intake
might have a place there too.
On a previous discussion it was mentioned, that this typ of intake was
designed for a suction typ airflow, wasn't it?
Well here we might be able to get that requirement!

Thomas J.

Thomas you need Rhino :) I am not sure I follow what you are proposing.

Paul Lamar
 
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