CG ON CMP CHRISTEN EAGLE 120  
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All Forums >> RC Airplanes >> ARF or RTF >> NitroModels Support >> CG ON CMP CHRISTEN EAGLE 120
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CG ON CMP CHRISTEN EAGLE 120 - 6/23/2009 10:21 PM   
Tbird 2


 

Posts: 1
Score: 100
Joined: 12/19/2007
Last Login: 6/24/2009
From: newcomb, TN, USA
Status: offline 		I can't get my cmp christen eagle 120 to balance at the mfg sugested mesurment of 150mm. the book says to balance the plane at 150mm back from the leading edge of the top wing. and 150mm is the only mesurement the book gives. i put a evolution 26gt gas engine in this plane which is 9oz heaver than the 120 4c engine recomended by cmp. the plane should be nose heavy but its tail heavy instead. there is two ways that i can make this plane balance. #1 i can add 2lbs to the nose. #2 i can move my balancer back to 182mm. did cmp make a mistake on the 150mm mesurement ? please help !

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RE: CG ON CMP CHRISTEN EAGLE 120 - 6/29/2009 5:28 PM   
opjose



Posts: 8256
Score: 128
Joined: 11/26/2005
Last Login: 11/6/2009
From: Poolesville, MD, USA
Status: offline 		No 150-160mm from the center of the top wing (with the plane upright and empty) is about right.

To achieve this you'll likely need to move the battery packs on to the motor mount itself and move all electronics as far forward as possible.

The plane will fly with the c.g. further back than 150-165mm but it will be fairly pitchy this way.



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All Forums >> RC Airplanes >> ARF or RTF >> NitroModels Support >> CG ON CMP CHRISTEN EAGLE 120
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