Message-ID: <025401bfb5f7$35e96120$0464a8c0@station4>
From: "John Barrett" <2thman@olympus.net>
To: "Lancair Mail List" <lancair.list@olsusa.com>
Subject: New electronic DG
Date: Thu, 4 May 2000 10:51:38 -0700
Mime-Version: 1.0

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Here's a new idea for a digital directional gyro.  Below are emails
detailing the information I have to date.  Anyone interested?

Regards,

John Barrett - LIVP
CARBINGE- "The World Hinges on Us"
360 385 1000


From: leighbeadle@mindspring.com
To: 2thman@olympus.net
Sent: Saturday, April 29, 2000 8:03 AM
Subject: new type compass/dg


I got your name from Christian Kongsore, who's building a Lancair. He said
you might be interested in looking at my patent. It's a solid state compass
that does not precess, has  instantaneous readout on digital numerics and
accurate to 2 degrees. It replaces the wet compass, DG, remote compass. It
calibrates itself every second, so no drifting.
Regards,  Leigh Beadle              888 929-8848

  leighbeadle@mindspring.com

-----Original Message-----
From: John Barrett <2thman@olympus.net>
To: leighbeadle@mindspring.com <leighbeadle@mindspring.com>
Date: 29mm2000 2:21 PM
Subject: Re: new type compass/dg


Dear Leigh,

Your invention sounds intriguing.  Is it electrical?  Do you  have any
details?  Size, weight, function, cost, availability, etc?  Any brochures or
pictures?

How would it replace my wet compass?   If all electrical fails and the GPS
system goes down, so even my handheld won't show my track, will your device
bail me out?

Do I need it if I'm using a Sierra Flight Systems EFIS MFD driven by an AHRS
unit that provides 3d situational data as well as heading?

Looking forward to more information.

----- Original Message -----
From: leighbeadle@mindspring.com
To: John Barrett
Sent: Wednesday, May 03, 2000 8:05 AM
Subject: Re: new type compass/dg


Dear John, I have the prototype unit in my Grumman Tiger. I'm interested in
selling the patent. The unit weighs about 2 ounces, is electrical, ND while
you wouldn't want to throw out the wet compass, a 2 hour battery can be
built into this unit to negate electrical failure. I'll mail you the patent
drawings of the unit. The circuit board is about the size of a credit card,
and the flux gate compass is attached to the top of the gyro inside the
vacuum horizon. arrangements could be made with an overhaul shop, or hire an
instrument overhauler to install it into the horizons. The cost of the
parts, not including the horizon itself, would be about $100. The digital
display would be located on the face of the horizon just above the
adjustment knob. This makes a very safe unit from the pilots standpoint
because all his references are on one instrument for attitude and heading,
instead of having to look back and forth from a DG to horizon. Naturally,
the EFIS will do the same, but especially for homebuilts, this unit saves
space and weight since every plane will already have a horizon, and the
standard DG is eliminated. Also the cost would be a fraction of the EFIS and
other flat display systems.           Regards, Leigh


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