Textron Cessna C172S PIM, Pilot Operating Handbook

Page: 198 / 322

SECTION 6 CESSNA
WEIGHT AND BALANCE/ MODEL 172S NAV III
EQUIPMENT LIST GFC 700 AFCS
U.S.
WEIGHT AND BALANCE
The following information will enable you to operate your Cessna within
the prescribed weight and center of gravity limitations. To determine
weight and balance, use the Sample Loading Problem (Figure 6-3),
Loading Graph (Figure 6-4), and Center of Gravity Moment Envelope
(Figure 6-7) as follows:
Enter the appropriate basic empty weight and moment/1000 from the
weight and balance records for your airplane in the YOUR AIRPLANE
column of the Sample Loading Problem.
NOTE
In addition to the basic empty weight and moment noted on
these records, the C.G. arm (FS) is also shown, but need
not be used on the Sample Loading Problem. The moment
which is shown must be divided by 1000 and this value
used as the moment/1000 on the loading problem.
Use the Loading Graph to determine the moment/1000 for each
additional item to be carried; then list these on the loading problem.
NOTE
Loading Graph information for the pilot, passengers and
baggage is based on seats positioned for average
occupants and baggage loaded in the center of the
baggage areas as shown on the Loading Arrangements
diagram. For loadings which may differ from these, the
Sample Loading Problem lists fuselage stations (FS) for
these items to indicate their forward and aft C.G. range
limitations (seat travel and baggage area limitation). Refer
to Figures 6-5 and 6-6 for additional loading information.
Additional moment calculations, based on the actual weight
and C.G. arm (FS) of the item being loaded, must be made
if the position of the load is different from that shown on the
Loading Graph.
Total the weights and moments/1000 and plot these values on the
Center of Gravity Moment Envelope to determine whether the point
falls within the envelope, and if the loading is acceptable.
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172SPHBUS-00
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