TM 5-6675-325-14
NOTE
In contour map example of twin peak mountain, area is elevation where
volumes merge into common base.
Volume of left peak above merge point
will be measured first.
(11) Place planimeter at starting point of boundary line for measuring first
contour.
(12) Press INIT. key to clear calculator.
(13) Make practice trace to make sure tracer arm will cover area in one
operation.
(14) Press CLEAR button to clear auto-scaler.
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