REFLECTOR: Retrofit NACA from armpit scoops

[Andrew Ellzey]

Andrew,

I know this doesn't answer your question, but why don't you just re-design you armpit ducting to do away with the scat duct. I am not flying yet, but I also have an updraft engine and I am also going to use the armpit inlets for my engine cooling. I have designed a ducting system that allows the lower cowling to be installed or removed without having to remove or install the cooling ducts. I would be glad to share some pictures off line if you are interested. All of my photo's are too large to make it on the reflector. I am interested in seeing your installation for your up exhaust. My IO540E1A5 also has the up exhaust. I will probably just shoot the six exhaust pipes straight up for now, rather than try any other configuration at this time. My engine installation is finished except for this issue.

Andy Ellzey



________________________________
From: Andrew Judge <ajudge at grovenetworks.com>
To: reflector at tvbf.org
Sent: Sun, October 25, 2009 11:32:47 AM
Subject: REFLECTOR: Retrofit NACA from armpit scoops



I was wondering if anyone on the list done the change from armpit scoops to NACA cooling?

I really want to make the change due to maintenance and cooling on my Standard Fixed. The SCAT is killing me every time I have to remove the cowlings.

If so, what difference in ease of maintenance, cooling and speed (if any) have you noticed? I'll probably do the down exhaust too.

I also have a second oil cooler aft. How do you route air into that?

Andy Judge
N55AJ
KTMB 
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