Mailing List flyrotary@lancaironline.net Message #4609
From: Mark Steitle <msteitle@mail.utexas.edu>
Sender: Marvin Kaye <marv@lancaironline.net>
Subject: Re: [FlyRotary] Re: Heaters/defrosters
Date: Thu, 04 Dec 2003 12:28:49 -0500
To: <flyrotary@lancaironline.net>



Mark;

I'd say not if the NACA scoop is working properly.  My setup is made to
recirc cabin air.  Any fresh air still has to come in the vents.

I recall a NACA scoop on a Velocity that was somewhere back on the
fuselage under the wing for fresh air into the back seat.  Opening the
vent produced no air coming in.  Apparently improperly designed scoop,
or bad location; or both.

Al

For fresh air, Lancair uses a naca scoop located low on the vertical.
To help with cooling the cabin while sitting on the ramp I added an in-line
blower, same as what is used in marine apps. to purge gasoline fumes from the engine
compartments on boats.  It routes fresh air through an overhead console and finally
through adjustable overhead air vents.  Too bad I can't piggyback on that same system for the
heater/defroster.  But I don't see how that would work without running the hot water
lines the full length of the cabin.

So, it looks like I will have to figure another source for heater air, or just heat and
recycle the cabin air.

Mark  
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