SECTION 6
CESSNA
MODEL 172R (180 HP)
WEIGHT & BALANCE/ EQUIPMENT LIST
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3. Weighing:
a. Weigh airplane in a closed hangar to avoid errors caused
by air currents.
b. With the airplane level and brakes released, record the
weight shown on each scale. Deduct the tare, if any, from
each reading.
4. Measuring:
a. Obtain measurement A by measuring horizontally (along
the airplane centerline) from a line stretched between the
main wheel centers to a plumb bob dropped from the
firewall.
b. Obtain measurement B by measuring horizontally and
parallel to the airplane centerline, from center of nose
wheel axle, left side, to a plumb bob dropped from the line
between the main wheel centers. Repeat on right side and
average the measurements.
5.
Using weights from item
3
and measurements from item
4,
the
airplane weight and C.G. can be determined.
6. Basic Empty Weight may be determined by completing Figure
6-1.
WEIGHT AND BALANCE
The following information will enable you to operate your Cessna
within the prescribed weight and center of gravity limitations. To
ldetermine
weight and balance, use the Sample Loading Problem,
Loading Graph, and Center of Gravity Moment Envelope as follows:
Take the basic empty weight and moment from appropriate
weight and balance records carried in your airplane, and enter them
in the column titled YOUR AIRPLANE on the Sample Loading
Problem.
NOTE
In addition to the basic empty weight and moment noted on
these records, the C.G. arm (fuselage station) 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 momenV1000 on the loading problem.
Use the Loading Graph to determine the momenV1000 for each
additional item to be carried; then list these on the loading problem.
6-6
Oct 4/01
Summary of Contents for 172R180HP
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