Mailing List lml@lancaironline.net Message #19437
From: Marvin Kaye <marv@lancaironline.net>
Subject: Re: [LML] LIV-Nose Gear Doors
Date: Sat, 05 Jul 2003 12:02:52 -0400
To: <lml>


Posted for "F. Barry Knotts" <bknotts@buckeye-express.com>:

Thank you all for your help.  I'm checking alignment now and will plan
on adding microswitch(es) for an in-transit and a locked-up gear
indication.  Any more suggestions about the action of the gear up
indicators?  Should the switches sense the gear leg or the doors?

  

Barry Knotts

bknotts@earthlink.net

L-IV P, Conti-TSIO 550, 20%, Toledo, Ohio.


[I thought I'd pass along the schematic that depicts how we did the gear lights on Ted's airplane, see the attached JPG.  You'll notice that there is a diode hooked into the Right Main gear down circuit... that feeds the signal required by the AOA to shut off the gear warning.  Additionally, there seem to be differing opinions about whether the "gear unsafe" indicators should be yellow or red.  From my POV it kind of depends on the current flight regime... during cruise, knowing that one of the gear isn't completely seated in its retracted position would probably only rate a yellow (caution, something's not quite right) light.  But in the landing configuration that light is a definite (red light) warning that the gear is still somewhere between retracted and extended.  We chose red because that issue in the landing mode is more important than when in cruise.  We installed the main gear-up switches over those inverted-U-shaped cutouts in the gear box where the gear legs start their bend.  The nose gear up switch is mounted to the inside of the stainless heat shield box that separates the engine compartment from the tunnel.  The P19... legends indicate the plug that interfaces this circuitry to the Aerotronics-built panel.  I hope this helps.

        <Marv>       ]
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