SOCATA
MODEL TB 20
SECTION 1
GENERAL
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. It is supplied in
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It must not be used for any purpose other than that for which it is supplied, nor
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Information in this document is subject to change without notice.
© 1988, 1991, 1992, 1994 to 1996, 1997, 2000 -
socata
- All rights reserved
June 30, 1988
Revision 2
1.8
g
:
Is acceleration due to gravity.
Usable Fuel
:
Fuel available for flight planning.
Unusable Fuel :
Fuel remaining after a runout test has been completed in
accordance with governmental regulations.
WEIGHT AND BALANCE TERMINOLOGY
Reference Datum :
Is an imaginary vertical plane from which all horizontal
distances are measured for balance purpose.
Arm
:
Is the horizontal distance from the reference datum to the
center of gravity (C.G.) of an item.
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 reducing the
number of digits).
Center of gravity (C.G.) :
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.
C.G. Limits :
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 :
Weight of a standard airplane including unusable fuel and full
operating fluids (oil and hydraulic fluids).
Basic Empty Weight :
Standard empty weight plus optional equipment.
Useful Load : Is the difference between take–off weight and the basic
empty weight.
