Beechcraft Duchess 76 - Page 29

BEECHCRAFT
Duchess 76
Loading
Condition
Reference
Datum
Station
Arm
Moment
Airplane
Center
of
Gravity (CG)
CG Arm
CG Limits
January 1978
section I
General
That combination of airplane weight
and corresponding moment applicable
to the various loadings computed for
weight and balance purposes.
An imaginary vertical plane from which
all horizontal distances are measured
for balance purposes.
A location along the airplane fuselage
usually given
in terms of distance from
the reference datum.
The horizontal distance from the refer-
ence datum to the center of gravity
(CG) of an item.
The product of the weight of an item
multiplied by its arm. (Moment divided
by a constant is used to simplify
ba-
lance calculations by reducing the
number of digits.)
The point at which an airplane would
balance if suspended. Its distance from
the reference datum is found by divid-
ing the total moment by the total weight
of
the airplane.
The arm obtained by adding the air-
plane's individual moments and divid-
ing the sum
by the total weight.
The extreme center of gravity locations
within which the airplane must be oper-
ated at a given weight.
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