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From: "Marvin Kaye" <marv@lancaironline.net>
Subject: Re: [LML] Re: MPH?
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Posted for "Dominic V. Crain" <domcrain@pacific.net.au>:

  So, from your reply, I can take that whenever I see anyone using the
  term, "MPH" in these posts, he or she really means knots?
  
"""
  Yes, I do.  KIAS and KTAS and Kts are all in Knots.
  
  Scott Krueger AKA Grayhawk
  N92EX IO320 Aurora, IL (KARR)
"""

[Dom, the convention to remember is that when folks specify a reading in MPH 
they are referring to statute miles per hour.  If they are talking nautical 
miles per hour they will use the term "knots", as in Scott's examples... KIAS 
is Indicated AirSpeed in knots, KTAS is True AirSpeed in knots, and kts is the 
usual abbreviation for knots.  If they specify a TAS or IAS in MPH it will be 
statue.  (A current local radio commercial here defines a nautical mile as 
being a lot like a regular mile, only wetter.  This has nothing to do with the 
current discussion, just some comic relief.)  Anyway, I hope this answers your 
question and clears up any confusion.  (except for the "wetter" thing, of 
course <g>.)    <Marv>       ]