ceengland(at)bellsouth.ne
Guest
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 Posted: Tue Apr 03, 2007 6:41 pm Post subject: W&B |
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Paul Petty wrote:
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Gang,
Got this in a fax from Donnie today. It was simply hand written on a legal pad. It read as follows.
The % C.G.
Greater 23%
Less 36%
% C.G.= H x 100
63.5
152.9
Anyone wanna take a stab at what this means? Im Clueless [Question]
Here is what Tom had to say....Sounds like they are using % mac or mean aerodynamic cord.
[Shocked]
This stuff is way over this rednecks head guys. At any rate im off to do what I know I can do will sifer through this jungle later!
do not archive
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Paul Petty
Kolbra #12
Ms Dixie
Final assembly!
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=104764#104764
23% of the distance from the wing's leading edge to the trailing edge;
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36% of the distance from the wing's leading edge to the trailing edge.
A rough way to say it, but close enough for gummint work.
CG should fall between those two points.
The rest doesn't seem to make any sense.
You can do the w/b by picking your own datum somewhere in front of the
wing's leading edge & measuring from that point back to the wheel
centerlines, fuel tank, engine oil tank centerline, seat, etc. to get
the 'arm' for each one.
Isn't there an RV-x close by? Can the builder help you do the w/b?
Charlie
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