For the Airport Traffic Pattern final speed (flaps 40), what is the acceptable range for 66 KIAS final speed?

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Multiple Choice

For the Airport Traffic Pattern final speed (flaps 40), what is the acceptable range for 66 KIAS final speed?

The speed you aim for in final approach with flaps set to forty is sixty-six knots indicated, and the acceptable tolerance around that target is plus or minus five knots. So the range is sixty-one to seventy-one knots. This symmetrical buffer accounts for gusts, instrument lag, and small pilot adjustments while keeping you within a safe margin of stall resistance with flaps forty. It also ensures you don’t get too slow and risk a stall, or too fast and overshoot the desired approach path. Other suggested ranges either don’t include the full five-knot allowance on both ends or push beyond what’s considered safe for this configuration, so they don’t match the standard final-approach tolerance.

The speed you aim for in final approach with flaps set to forty is sixty-six knots indicated, and the acceptable tolerance around that target is plus or minus five knots. So the range is sixty-one to seventy-one knots.

This symmetrical buffer accounts for gusts, instrument lag, and small pilot adjustments while keeping you within a safe margin of stall resistance with flaps forty. It also ensures you don’t get too slow and risk a stall, or too fast and overshoot the desired approach path.

Other suggested ranges either don’t include the full five-knot allowance on both ends or push beyond what’s considered safe for this configuration, so they don’t match the standard final-approach tolerance.

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