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Steve,
It certainly sounds as though, at flying speed, airflow could be creating a low pressure zone where your vent tube opens to the atmosphere. How about terminating it in a known high pressure zone, such as the NACA plenum?
Dale R.
COZY MkIV #1254
From: Steve Brooks <prvt_pilot@yahoo.com>
Date: 2005/01/16 Sun PM 10:08:40 EST
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: Need Advise
Rusty,I'll have to take a look at this more when I get
back home. I'm staying with freinds and using their
computer, which is definitely bandwidth challenged.
I don't like the sounds of the side seal issue, but I
hope it is something simple. I've got about 12 hours
on the engine since overhaul, and don't know why I
would have a side seal issue now, but who knows.
One thing that I forgot to mention.... it only does it
while flying. I ran it on the ground with the cowling
off for a total of 15 minutes or so. Not a drop. That included some full power runs up to about 40 kts
or so.
Maybe the hose location is the issue and has to have
flying speeds ? Don't know. Wishful thinking maybe
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