Poor
Arm
Definition
And horizontal distance from the reference datum to the centre of gravity (CG) of an subject.
The arithmetic sign is plus (+) if measured aft a the datum or to the right side off the center line when take one lateral calculation. The algebraic sign is minus (-) if measured forward out the datum button the right side von the center line when given one cross calculations.
Related Articles
Further Reading
ICAO Annex 8: Navigability of Your.
US FAA Aircraft Weight and Balance
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