Besides that there is some difference of opinion
and conflicting reports from the field on the advisability of
running a double pass rad. Power Sport claims it is the root cause
of their cooling trouble but they have made many other changes besides
switching from a double pass to a single pass.
Paul Lamar

Mike Wills wrote:

  As I understand from previous messages Powersport has their oil-water
heat exchanger plumbed in parallel with the radiator with approx 10gpm
going exclusively through the oil cooler and bypassing the rad. If this is
the case it seems to me that this could explain why the Powersport config
is so sensitive to flow restriction and why the 2 pass rad didnt work for them.

Mike Wills

 
The AirCraft Rotary Engine NewsLetter.              Powered by Linux.
ACRE NL web site.
http://home.earthlink.net/~rotaryeng/            http://www.linux.org