Weight And Balance Terminology - Beechcraft Bonanza V35B Pilot Operating Handbook

WEIGHT AND BALANCE TERMINOLOGY

Reference An imaginary vertical plane from which all horizontal distances are measured for balance
Datum purposes.
Station A location along the airplane fuselage usually given in terms of distance from the reference
datum.
Arm The horizontal distance from the reference datum to the center of gravity (C.G.) of an item.
Moment The product of the weight of an item multiplied by its arm. (Moment divided by a constant is
used to simplify balance calculations by reducing the number of digits.)
Airplane The point at which an airplane would balance if suspended. Its distance from the reference
Center of datum is found by dividing the total moment by the total weight of the airplane.
Gravity
(C. G.)
C.G. Arm The arm obtained by adding the airplane's individual moments and dividing the sum by the
total weight.
C.G. The extreme center of gravity locations within which the airplane must be operated at a
Limits given weight.
Usable Fuel available for flight planning.
Fuel
Unusable Fuel remaining after a runout test has been completed in accordance with governmental
Fuel regulations.
Standard Weight of a standard airplane including unusable fuel, full operating flu ids and full oil.
Empty
Weight
Basic Standard empty weight plus optional equipment.
Empty
Weight
Payload Weight of occupants, cargo and baggage.
Useful Difference between take off weight, or ramp weight if applicable, and basic empty weight.
Load
Maximum Maximum weight approved for ground maneuvering. (It includes weight of start, taxi, and
Ramp run up fuel).
Weight
Maximum Maximum weight approved for the start of the take off run.
Take-off
Weight
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Beechcraft V35B Bonanza
Pilot Operating Handbook