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<DIV><FONT face=Arial size=2>As I was making the cowl scoop for the Arresti, I
tried to locate it where maximum air flow would be directed to the area of the
crankcase in the vicinity of the main bearing. Through trial and error,
and directing airflow into the scoop, I found that without an internal dam, or
deflector, that practically no air was being forced onto the
engine.</FONT></DIV>
<DIV><FONT face=Arial size=2> Just wondering if this is an
accidental discovery, and everyone else already knew this?</FONT></DIV>
<DIV><FONT face=Arial size=2> And that there is an "optimum"
spacing aft of the spinner to force the greatest air in the area we
need?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Anyone else made similar
observations?</FONT></DIV><FONT face=Arial size=2>
<DIV><BR>Bob Pastorello, Oklahoma<BR>NSRCA 199, AMA 46373<BR><A
href="mailto:rcaerobob@cox.net">rcaerobob@cox.net</A><BR><A
href="http://www.rcaerobats.net">www.rcaerobats.net</A></DIV>
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