X-Mozilla-Keys:                                                                                 

Huh. We measured the oil temp drop and pressure drop in the C177rg model  oil
cooler in cruise (we have a very extensive webpage of mods and tests at
http://cardinal.mlink.net/html.tech which includes the 'howl cowl mod that
didn't work-reverse airflow)  and it was only 6 degrees, and 0 in climb!  Of
course this is a small oil cooler, [an afterthought in the design dept], a
lousy air intake (NACA) and exhaust pathway (typical Cessna design, blows
directly on firewall). A 20 drop is a lot to ask for-and the C177rg is a
200hp engine. That is a type certified aircraft for ya.

-- Marc

 
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