Mailing List lml@lancaironline.net Message #54346
From: Colyn Case at earthlink <colyncase@earthlink.net>
Sender: <marv@lancaironline.net>
Subject: Re: [LML] Re: Airspeed sensing switch /Auto gear extension / Engine out gear down Issue!
Date: Thu, 28 Jan 2010 12:43:45 -0500
To: <lml@lancaironline.net>
Chris said,
AOA will compensate for weight very nicely.  It doesn't know, however, what descent rate is being flown and how much energy is needed to arrest that sink.  The energy needed goes up as a squared function of the vertical speed.  In the 360, I span descent rates from 500 to 2,000 fpm on final (ILS to short approaches).  The energy thus varies by a factor ~16.  It is the higher end of the scale where one can get into trouble.  
 
Is "energy" equivalent to mv^2 in this case?  
so if you double your sink rate you would need to double your speed above stall to compensate?
 




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