Message-ID: <003801c05634$80101680$e5b188ce@pavilion>
From: "J. N. Cameron" <toucan@The-I.net>
To: "Lancair List" <lancair.list@olsusa.com>
Subject: Charlie Kohler's comments on fuel vent scoops
Date: Fri, 24 Nov 2000 10:35:02 -0600
Reply-To: lancair.list@olsusa.com
Mime-Version: 1.0

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NACA vent scoops:

    The ES fast-build kits now have another new wingtip molding that already
has the NACA scoop molded into it.  Since the little NACA molds are also
still included in the kit, I called tech support several months back, asking
should I grind out the molded vents and use the extra ones supplied, or just
use what's already there?  The answer was that the molded ones were ready to
go.  Seeing Charlie's comment on LML this morning, however, prompted me to
go back and look at them, and, as I remembered, they have no cover at the
back.  That is,  back of the scoop is simply a wall that comes up and meets
the edge of the skin.  Are these going to work OK, or should I have ground
out a proper scoop, with the vent line recessed back in?

Fuel filters:

    On my last ES, I had a problem with a little metal chunk ending up in
the Dukes boost pump.  The chunk of metal was small, but the repair bill
wasn't.  Seems to me that a lot of builders are planning a fuel filter
between the fuel selector and the boost pump, but that violates Charlie's
dictum not to have one ahead of the pump, and also poses real problems of
fuel on the cockpit floor when you change the filter element.  What to do?
    The standard gascolator low on the firewall protects the engine's fuel
system just fine, but what's the best way to provide some extra filtration
protection that would include the boost pump?

Jim Cameron, ES #2 in progress


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