Mailing List lml@lancaironline.net Message #8219
From: Carl Cadwell <CarlC@cadwell.com>
Subject: Wet compass deflection
Date: Tue, 16 Jan 2001 11:14:08 -0800
To: 'lancair.list@olsusa.com' <lancair.list@olsusa.com>
         <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>>
          <<  Lancair Builders' Mail List  >>
          <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>>
>>
In switching on the power, the wet compass swung 40 degrees.  The wet
compass is located in the middle of the glare shield on our IVP.

The only solution that I came up with is a 6" x 6" mu metal sheet that
was placed under the glare shield and reduced the swing to 2-3 degrees
when the power is turned on.  I have not taken the airplane to a
compass rose to swing it yet.

Does anyone know if this is an acceptable solution?  Is this going to
cause some other problems when flying starts next month?  Note:  mu
metal is usually used to protect sensitive electronics from outside
electrical and magnetic interference.

N25CL
Carl Cadwell


>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
LML website:   http://www.olsusa.com/Users/Mkaye/maillist.html
LML Builders' Bookstore:   http://www.buildersbooks.com/lancair

Please send your photos and drawings to marvkaye@olsusa.com.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Subscribe (FEED) Subscribe (DIGEST) Subscribe (INDEX) Unsubscribe Mail to Listmaster