Subject: Lancair rotary.
From: Paul
Date: 8/21/2000, 6:49 PM


Paul:
The heat exchangers are out of Lincoln Town Cars.

Tracy says he has never had water cooling problems with his installation.
Don't know what heat exchangers he used.

I bought an Earls heat exchanger 12"x8"x2" for the oil cooler and am moumting
it under the oil pan.  I am using the carb air inlet for cooling air source.

Looks like I will be able to cram everything in a stock Lancair cowling if I
modify the upper cowl foerward from about a foot behind the prop.

Hank - San Mateo, Ca. LNC2 Rotary


Ok I will see if I can find them. I am not sure what we will learn as I will
not be able to keep the pressure across the cores constant. I expect the
thin cores will flow more air with a lower pressure. I have a wind speed
meter that I will use to estimate the flow. Perhaps we can come up with
a mathematical relations ship with limited data points. 
Anybody got any suggestions along these lines.

IMHO it would be better to mount one thin core under the engine. Tracy's
system does not work all that great and it has more drag than necessary IMHO.

Paul Lamar
 
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