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Navigationhard#243

The formula for PET distance from departure is:

A

D × GS_home / (GS_out + GS_home)

Correct

B

D / 2

C

D × GS_out / (GS_out + GS_home)

D

D × Wind / TAS

Explanation

PET distance = D × GS(home) / (GS(out) + GS(home)), where D is total distance, GS(out) is GS onward, GS(home) is GS returning.

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