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Subject: Re: [M]: 12.5" StarFinder Dob: Installing Fan & Magellan I
From: Valerie & Bob Goff
Reply To: mapug@shore.net
Date: Fri Nov 01 00:25:46 1996

>In a message dated 96-10-31 23:15:43 EST, you write:
>
><< which
> way should the fan blow: into the tube (afraid it might suck dirt from the
> ground into tube) or out from the tube? Or does it even matter? Maybe
> someone with a 7" Mak could comment on the way the fan blows from the back
> on those models (even though it's a closed tube, and the dob is open--may
> still give me an idea). >>
>
>Regardless of which way the Mak fan blows, it is on a tripod high above the
>ground. Your Dob's mirror is near the ground, and that is where the heat is.
>You want your fan to blow out...pull the cool air from above, across the
>mirror, and out. Air cools much faster than earth when the sun goes down.

AAHHHH! Sanity, at last.
Bob