Right now, it is off. Today was the first really high power run,
and I want to do a couple with the cowl off first. I can feed the hose in through
the hole between the cowl and firewall, so I can still get the cooling with the
cowl on.
From: Rotary motors in
aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bill
Bradburry
Sent: Saturday, April 24, 2010 7:55 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: cooling for ground runs
Chris,
Are you doing your ground running with the cowl on or off?
Bill B
From: Rotary motors in
aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Chris and
Terria
Sent: Saturday, April 24, 2010 4:06 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: cooling for ground runs
Here is how I solved the high temperatures during ground
runs. I bought $10 worth of stuff at Lowes, ½ inch PVC, 90 and 45 angles,
end caps, and misters for spraying plants in the garden (two in the oil cooler,
three for the water cooler). I hooked it up to the hose, and although
water flowed all over the ground, the engine remained within limits.
Before, I could get about 4-5 minutes of high power. With
this spray bar running, I had to push the power up above 2500 RPM to get it to
heat up above 135*, then after about 8 minutes at high power, I was still only
185*.
Easy, cheap, and it keeps the cooling system intact.
CHris