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Date: Wed, 18 Jul 2001 16:09:56 EDT
Subject: Re: IO-360 Cruise Charts
To: lancair.list@olsusa.com
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          <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>>
          <<  Lancair Builders' Mail List  >>
          <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> 
>>
Marcelo Pacheco wrote:

<<Lycoming probably assumes very poor ram air effect on their charts, as all 
certified aircraft with IO-360/320's don't go faster than 140 ktas.>>

In fact, if you examine the data on the Lycoming Altitude Performance curves 
(some of which defines in crystal-clear detail how to use these excellent 
charts) you will see it explicitly stated that the data presented therein 
assumes "...zero ram...".

Also, I think the statement about "..ALL certified aircraft..." can be 
adequately rebutted by the performance of the Twin Comanche and the Wing 
Derringer, to name only two such aircraft.

Jack Kane
EPI, Inc.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
LML website:   http://www.olsusa.com/mkaye/maillist.html
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Please send your photos and drawings to marvkaye@olsusa.com.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>