Mailing List lml@lancaironline.net Message #24683
From: <Sky2high@aol.com>
Sender: Marvin Kaye <marv@lancaironline.net>
Subject: Re: [LML] Re: Shannon Knoepflein's Legacy Accident
Date: Fri, 06 Aug 2004 11:40:32 -0400
To: <lml@lancaironline.net>
In a message dated 8/6/2004 8:52:59 AM Central Standard Time, lorn@dynacomm.ws writes:
According to Grayhawk in the last issue of the LML, The LNC2's have a
7:1 glide ratio with the prop in cruise pitch and a 22:1 glide ratio
with the prop in coarse pitch.

Shannon was said to be at 8,000 ft. This should give between (8,000 * 7
/ 6,072 =) 9.2 NM and (8,000 * 22 / 6,072 =) 29.0 NM of range. The
Madison airport was 10 miles away. What happened? Was the prop stuck in
cruise pitch?
Lorn, Et Al,
 
Please note that MY 320 at a particular gross weight and clean configuration had such a DEMONSTRATED glide ratio.  Each should determine their own and maybe a Legacy pilot will perform such a test and reply (Rob?).
 
Also, note that the terrain around Madison is 900-1000 feet MSL, thus reducing the range.
 
Considering the terrain height, I would only have 8 to 25 NM range.  This is assuming I could actually hold the best glide speed while screwing around with the GPS, fuel pumps, radios, checklists, problem analysis, etc.  Such is the risk of single pilot operation.
 
However, Lorn's question is certainly interesting.
 
Finally, consider this:  If one knows the descent rate associated with one or two weight configurations and prop settings and one has an autopilot that has altitude management capabilities like the Tru-Trak, the descent rate could be set into the A/P and the other busy work could be accomplished while the plane descended at an approximate optimum rate.  I have always believed that a good independent autopilot was a better investment than BRS, cockpit WX, etc. if one conducts single pilot operations.
 
Scott Krueger AKA Grayhawk
Sky2high@aol.com
II-P N92EX IO320 Aurora, IL (KARR)

LML, where ideas collide and you decide!
 
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