When density altitude is beyond capability as indicated on the performance chart,
A
interpolate the data and attempt takeoff.
B
extrapolate the data and attempt takeoff.
C
do not attempt takeoff until conditions permit calculations to provide the data to determine a safe takeoff and climb out.✓ Correct Answer
Explanation
PHAK Chapter 11 cautions that performance data should never be extrapolated beyond the chart; if the density altitude is outside the published data, performance cannot be determined and the takeoff should not be attempted until conditions allow a valid calculation. Interpolating within the chart is fine, but not outside it.
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