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Airplane Manual FK 12 S2
Revision 1
c) Weight and Balance
Reference
Datum
Arm
Moment
Airplane center
of gravity (C.G.)
C.G. arm
C.G. limits
Empty weight
d) Conversions
1 Liter (Ltr)
=
1 m
=
1 km/h
=
1 cm
=
1 bar
=
1 kg
=
General
An imaginary vertical plane from which all horizontal
distances are measured for balance purposes
The horizontal distance from the reference datum to the
center of gravity of an item
The product of the weight of an item multiplied by its arm
The point at which an airplane would balance if sus-
pended. Its distance from the reference datum is found by
dividing the total moment by the total weight of the
airplane
The arm obtained by adding the airplane's individual
moments and dividing the sum by the total weight
The extreme center of gravity locations within which the
airplane must be operated at a given weight
Weight of the airplane including unuseable fuel, full
operating fluids and full oil; equipment as indicated
0,264 USG
3,28 ft
0,54 kt
0,394 inch
14,5 psi
2,2 lbs
1 USG
=
1 ft
=
1 kt
=
1 inch
=
1 psi
=
1 lbs
=
FK Lightplanes
page 1-5
3,785 Ltr
0,3048 m
1,852 km/h
2,54 cm
0,069 bar
0,45 kg
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