Mailing List lml@lancaironline.net Message #27552
From: Robert Overmars <robert.overmars@tiscali.it>
Sender: Marvin Kaye <marv@lancaironline.net>
Subject: LEAD SLEDS
Date: Mon, 10 Jan 2005 20:36:06 -0500
To: <lml@lancaironline.net>

" " Some of the engineering has already been done. The IV at 3550 lbs is rated at +4.4 and -2.2 "Gs". At 4,000 lbs the allowable "G" loading would be +3.9 and -1.95. A little weight in forward would take care of the CG problem" "
 
 
 The figures above must be plucked from cloud cuckoo land. A quick check of Lancair Kits Web Site reveals LIV/P  'G' loadings as; +4.4,  -2.2 UTILITY Category.  +3.8, -2.0 NORMAL category. Figures which are of course utterly and completely meaningless without given weights for the respective categories.......  
 
Best to ask Lancair Company what weights they specify for Utility and Normal categories. If you are lucky enough to ask Lancair Company on the rare occasion when they are specifiying specifications, you might find out that the LIV/P take-off weight is given as 3,550lbs, the landing weight as 3,200lbs. And that's about as far as it goes with Lancair Company's specifications. Utilility and Normal Category weights????  What's that??? 
 
From the mouth of the designer, and best you Lead Sled builders/pilots read his books, the specs for the LIV read 4.4gs at 2,900lbs with a 150% ULTIMATE LOAD FACTOR.
 
Flirt with the margins and, as Brent R writes, best you stay anonymous....
 
ciao,
 
Roberto d'Italia.
 
 
 
 
 
 
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