Question: How should I populate the approachGuidance attribute of the Obstruction Identification Surface (OIS) feature class?


Answer: Select the most stringent approach supported by the runway that defines the Obstruction Identification Surface. Possible values - from least to most stringent are:

NON_VERTICAL

PRECISION_CAT_I

PRECISION_CAT_II

PRECISION_CAT_IIIA

PRECISION_CAT_IIIB

PRECISION_CAT_IIIC

VERTICAL

VISUAL

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