The Murphy Builders Site

Ted the range is 9.5 to 21.38 inches Dale N269DF

Thanks!



Ted





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My empty CG is at 7.87 with an empty weight of 1844. Heavy Chevy puts the CG
a bit forward. But having worked a few theoretical loading scenarios I am
very glad of that. Everything moves the CG aft. Also, my first flight was
pretty close to 20 inches aft of the datum due to an error in my W&B
spreadsheet which led to too many salt bags in back and it flew terrible!
Wallowing, barely climbing, and not able to maintain altitude without a lot
of power. Part of the problem was too fine a pitch on the prop without being
able to increase pitch but I'm using a personal aft CG limit of 19 inches
until I can explore that region more carefully with a fully controllable
prop.

Mike
SR044

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Ted
Waltman
Sent: Wednesday, February 25, 2009 7:31 AM
To: rebel-builders@dcsol.com
Subject: [rebel-builders] Moose CG

My Moose CG comes in at 11.61" with a gross of 2,164 lb.



I've seen an allowable range that one person used of 10.5" - 21.9". Another
builder used an allowable range of 10.8" - 20.4".



Does anyone know what the factory recommends? I don't have the manual in
front of me now.



Thanks!



Ted





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