If the uncorrected PAPI distance is 765 feet, the correction is 90 feet, and the elevation at the threshold is higher than the PAPI location, what is the corrected PAPI distance?

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Multiple Choice

If the uncorrected PAPI distance is 765 feet, the correction is 90 feet, and the elevation at the threshold is higher than the PAPI location, what is the corrected PAPI distance?

When adjusting PAPI distance, you factor in elevation differences between the PAPI location and the runway threshold. If the threshold is higher, you need more horizontal distance to maintain the same glide path angle, so you add the correction to the measured distance. Here, the uncorrected distance is 765 feet and the correction is 90 feet, so you get 765 + 90 = 855 feet.

When adjusting PAPI distance, you factor in elevation differences between the PAPI location and the runway threshold. If the threshold is higher, you need more horizontal distance to maintain the same glide path angle, so you add the correction to the measured distance. Here, the uncorrected distance is 765 feet and the correction is 90 feet, so you get 765 + 90 = 855 feet.

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