Correction Section

By
Aviation Safety Staff
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0
A real Koch chart is reproduced above. To use it, draw a straight line between the temperature (85 degrees F) on the left and the pressure altitude (1000 feet) on the right. Read the results from the center (35 percent increase in takeoff distance and a 25 percent reduction in climb rate).
In the December 2023 issue, the figure on page 5 is not a Koch chart, but rather a chart for computing pressure altitude. A Koch chart normally has a pressure altitude scale on the right and temper…
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