Why not just pop the top and open the front canvas screen?  The vent
could be mounted to the upper mattress.  The screen would even keep the
bugs out.

Darren

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
Of 80 Westy Pokey
Sent: Friday, August 23, 2002 9:01 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Custom Scoop Update - Friday Edition

I don't think I want to cut a hole in my pop top for this
vent, could it be routed a different way? ;-)

Thanks,
Chris

---- Original message ----
>Date: Fri, 23 Aug 2002 08:47:33 -0500
>From: Fredrich Hesterberg <FredsVW@WEBTV.NET>
>Subject: Re: Custom Scoop Update - Friday Edition
>To: vanagon@GERRY.VANAGON.COM
>
>I like idea of chicken coop or barn vent on roof of Van to
remove hot
>air.
>Don't you think it would be loud ?
>They make big noise when spinning, no bearings.
>How high off roof should be to work good?
>
>Good Morning,
>
>Fred
>
>
>E-mail message
>
>OK here we go again!
>I worked for Triangle Engineering in 1975 as a marketing
manager.
>Triangle engineering was, at the time the worlds largest
manufacturer of
>Roof Top Turbine Ventilators.
>After exhaustive testing at Texas A&M university with about
ten
>varieties of ventilators that were designed to suck.
>None of them sucked, they all drafted exactly in proportion
to the size
>of the hole in the roof.
>Since heat rises and the wind blows when it rains it makes
them twirl.
>Its apparent to me that we need a twirling scoop. That way
it would
>perform exactly like the hole it covers.
>All of you folks have seen my half assed wind ram at
>http://williamwareagency.com/forsale/stanvan/vent.htm Now
this thing
>blows your sun glasses off at 60 mph as well as dehydrating
any fruit
>you happen to have in the van. So a ram vent is a real help
if you stick
>an oil cooler behind it. Granted you're going to get a fair
amount of
>dirt, insects, rain in your cooler and in your engine
compartment but
>wow! its great to be cool. Not me bubba, I just stop and
turn it around
>facing backwards and it becomes an exhaust vent on rainy
days.
>Stan Wilder
>
>On Fri, 23 Aug 2002 01:04:36 EDT Ben T
><BenTbtstr8@AOL.COM> writes:
>Why don't you all just say scoops suck because they don't
suck? Put a
>damned
>exhaust fan in the rear and ground touching skirts on your
damned vans
>and
>let's move on. You are all neglecting the fact that some
folks want
>scoops
>because they don't suck in the looks department though they
suck in the
>function department.
>BenT
>out of shape