When a course is plotted at minimum time track, one passes from the air isochrone to the corresponding ground isochrone by applying to the air isochrone a vector which is equal to:

Question

Question ATPL - Airline Transport Pilot license - Operational Procedures

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Mean wind from the preceding ground isochrone.

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Wind at K.

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Wind at K'.

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Mean wind up to the next ground isochrone.

Id 184 - ATPL - When a course is plotted at minimum time track, one passes from the air isochrone to the corresponding ground isochrone by applying to the air isochrone a vector which is equal to: