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> The cars, especially the 13Btt do the same thing. Heat soak-I
added a temp
gauge that reads in degrees on my car and it goes over 226F easily if you
let it-then the electric radiator fans come on. I added a boat
blower in the
engine compartment on my 94 rx7. One will go in the plane as well........
> Marc Wiese
After shut-down, I usually run the EWP for an additional few minutes and I
see the temps drop, however as there is no airflow through the rads without
the prop blast, cooling is limited. I've been thinking about adding a fan to
help with this, but didn't want something too big or restrictive of airflow
during flight. On Friday I was picking up some parts at a heavy truck dealer
when I saw a possible solution. You know the little fans that some older
rigs used to have on the dash? Well they are cheap($36), light(1.5lbs), and
durable. So I bought one for an experiment. As seen in the attached pic, I
mounted it to blow out through one rad so it will draw cool air through the
cowl, before blowing it through the rad. I'll run it and one of the EWP's
for 5 minutes after shutdown for a test. If it doesn't adversely effect
airflow during flight and gives some measurable benefit, then I'll wire both
to a timer and make it a permanent installation.
S. Todd Bartrim
Turbo 13B RV-9Endurance
C-FSTB
http://www3.telus.net/haywire/RV-9/C-FSTB.htm
"Whatever you vividly imagine, Ardently desire, Sincerely believe in,
Enthusiastically act upon, Must inevitably come to pass".
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