6.8 INSTRUCTIONS FOR USING THE WEIGHT AND BALANCE PLOTTER.
This plotter is provided to enable the pilot quickly and conveniently to:
(a)
Determine the total weight and C.G. position.
(b)
Decide how to change his load if his first loading is not within the allowable envelope.
Heat can warp or ruin the plotter if it is left in the sunlight. Replacement plotters may be purchased from Piper
dealers and distributors.
When the airplane is delivered, the basic weight and basic C.G. will be recorded on the computer. These
should be changed any time the basic weight or C.G. location is changed.
The plotter enables the user to add weights and corresponding moments graphically. The effect of adding or
disposing of useful load can easily be seen. The plotter does not cover the situation where cargo is loaded in
locations other than on the seats or in the baggage compartments.
Brief instructions are given on the plotter itself. To use it, first plot a point on the grid to locate the basic
weight and C.G. location. This can be put on more or less permanently because it will not change until the
airplane is modified. Next, position the zero weight end of any one of the loading slots over this point. Using a
pencil, draw a line along the slot to the weight which will be carried in that location. Then position the zero
weight end of the next slot over the end of this line and draw another line representing the weight which will be
located in this second position. When all the loads have been drawn in this manner, the final end of the segmented
line locates the total load and the C.G. position of the airplane for takeoff. If this point is not within the allowable
envelope it will be necessary to remove fuel, baggage or passengers and/or to rearrange baggage and passengers
to get the final point to fall within the envelope.
Fuel burn-off does not significantly affect the center of gravity.
ISSUED: DECEMBER 16, 1976
REPORT: VB-880
REVISED: APRIL 17, 1989
6-15
PIPER AIRCRAFT CORPORATION
SECTION 6
PA-28-161, CHEROKEE WARRIOR II
WEIGHT AND BALANCE
Содержание CHEROKEE WARRIOR II
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