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OAT Outside Air Temperature is the free air static temperature. g g is acceleration due to gravity.
WEIGHT AND BALANCE TERMINOLOGY
Reference Reference Datum is an imaginary vertical plane from
Datum which all horizontal distances are measured for balance
purposes.
Station Station is a location along the airplane fuselage given in
terms of the distance from the reference datum.
Arm Arm is the horizontal distance from the reference datum to
the center of gravity (C.G.) of an item.
Moment Moment is the product of the weight of an item multiplied
by its arm. (Moment divided by the constant 1000 is used in this handbook to simplify balance calculations by reduc¬ing the number of digits.)
Center of Gravity (C.G.)
C.G. Arm
C.G. Limits
Standard Empty Weight
Basic Empty Weight
Useful Load
Gross (Loaded) Weight
Maximum Takeoff Weight
Center of Gravity is the point at which an airplane, or equipment, would balance if suspended. Its distance from the reference datum is found by dividing the total moment by the total weight of the airplane.
Center of Gravity Arm is the arm obtained by adding the airplane's individual moments and dividing the sum by the total weight.
Center of Gravity Limits are the extreme center of gravity locations within which the airplane must be operated at a given weight.
Standard Empty Weight is the weight of a standard air¬plane, including unusable fuel, full operating fluids and full engine oil.
Basic Empty Weight is the standard empty weight plus the weight of optional equipment.
Useful Load is the difference between takeoff weight and the basic empty weight.
Gross (Loaded) Weight is the loaded weight of the airplane.
Maximum Takeoff Weight is the maximum weight ap¬proved for the start of the takeoff run.
CESSNA SECTION 2
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