Message-Id: <5.1.0.14.2.20010611141548.02f609b8@mail.bluemtn.com>
Date: Mon, 11 Jun 2001 15:01:43 -0400
To: lancair.list@olsusa.com
From: Greg Richter <greg@bluemtn.com>
Subject: Blue Mountain Avionics -- the engineers reply
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Reply-To: lancair.list@olsusa.com

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Brent has some good points about the reliability of avionics systems in 
general, but has made some reasonable, but incorrect assumptions about our 
hardware.  We are currently pursuing type certification for it, so it can't 
be complete junk ....  ;-)

Here's the real story:

We use a COTS processor, Rockwell GPS and Honeywell magnetometer.  These 
devices are proven, available and suitable for the application.  We 
purpose-built everything else specifically for this product. Brent would 
have you think we cobbled EFIS/One together out of used computer parts and 
old Volkswagen mufflers.  It just ain't so.

 >>The vacuum powered mechanical gyro for attitude sensing is scary.

The vacuum ADI is our lowest cost option for Attitude, and comes with TSO 
approval, which means it's not complete junk either.  We will be showing 
our solid-state ADI at Osh, which is not yet approved.  Failure flags for 
both vacuum and major subsystems via cross-check is, of course, part of the 
package.

To Brent's dislike of my system all I can offer is to take a look at it 
first, and consider the source.  He is selling a similar product for 5x 
what we are, but the systems are different. There is certainly room for 
both in the marketplace.   As to why he is attacking it so vehemently 
without seeing it, please see above.

 >>Do not imagine for a moment that the Blue Mountain fellow has discovered a
 >> way to make a system comparable to the SFS EFIS-2000 for 1/2 to 1/3 the 
cost.

Closer to 1/5 the cost actually and, yes, we have done that very 
thing.  Come see it.  You'll agree.

Greg Richter
blue mountain avionics

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