Mailing List lml@lancaironline.net Message #20600
From: <RWolf99@aol.com>
Sender: Marvin Kaye <marv@lancaironline.net>
Subject: Landing Gear Squat Switch
Date: Sun, 21 Sep 2003 16:09:49 -0400
To: <lml>
With respect to Ric Argente's "squat" switch -- actually an airspeed switch rather than a weight on wheels switch -- I have a comment and a question.

A fellow Lancair builder in Lompoc CA had a bypass switch behind the instrument panel so that he could defeat the airspeed switch for ground maintenance of the gear system.  He did not intend for this bypass switch to be accessible in flight.  He had one of those red switch guards over it that automatically flips the bypass switch when the cover is down.  It's hard to notice a switch in the wrong positrion but easy to see when a switch guard is flipped up.  I though that was a good idea and intend to install mine that way this winter.

As for the question, I assume that the airspeed switch is normally open unless pressure is applied, and the "landing gear down" signal goes from the landing gear switch through this pressure switch and thence to the landing gear up relay.  (Or from the pressure switch to the gear handle to the relay -- it doesn't matter).  Is this how all y'all are wiring it up?

- Rob Wolf
LNC2 70%

p.s.  I installed the horizontal and vertical tails this past week during a one-week vacation with the aid of a gullible friend.  Also, the bottom of the fuselage and wings are now filled and primed.  So I'm saying that my project is 70% complete.  Two weeks ago I was saying 51%.  (Gee, 19% progress in two weeks.  Sounds almost like a Legacy, doesn't it?)  High time, too -- we noticed that my vertical fin parts on my "Super Fast Build" 360 were made in the Philippines 10 years ago this month.  It now looks like a real airplane.  Walking into the garage is pretty cool....

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