Mailing List flyrotary@lancaironline.net Message #4386
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Re: gauges
Date: Wed, 19 Nov 2003 08:13:19 -0600
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
e.g. roughly speaking   boost PSI = (MAP - height thousands)-30/2
MAP = 42 @ SL = 6PSI
MAP = 48 @ 10,000 = 4PSI
 
Does this makes sense, or am I still missing something? 
 
 
Assuming you meant 14 psi for the last example, I think you've got it.  
 
I also agree (gasp <g>) with Marvin that the boost gauge will no longer be useful after you prove that you can't push the turbo outside it's normal range.   Of course I'll be changing turbos soon, so I get to start all over.   It's actually hard to think of a time where I won't be in "test" mode :-)
 
My voice annunciator and an LED annunciator panel will let me know if any of 8 parameters get out of line.  
 
Great, so you already have warning indicators.  That's all I was getting at.
 
Rusty (temporarily, the water rocketeer) 
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