GPS Holding Pattern

crtskills — Fri, 11 Jul 2008 08:12:48 GMT

Up to this point I have not done GPS approaches. Now I am doing GPS approaches and the holding patterns associated with them. I've noticed they have distance specified on the holding pattern (example 6NM) shown in the Plan view and 6NM Holding Pattern written in the Profile view as well. I'm used to doing one minute holding patterns, unless told to do otherwise. Is the distance given (from the holding fix) a remain within (i.e. remain within 6 NM) or an instruction to begin your turn inbound at 6NM?

"AIM para. 5-3-7(j)(5) describes use of DME or GPS Along-Track Distance (ATD) in lieu of time values that are necessary to ensure holding pattern airspace protection. When distance is used in lieu of time on a holding pattern, the distance value specified on the procedure chart or provided by ATC is applicable to the outbound leg of the holding pattern. When GPS is used for holding with a distance specified, the holding fix will be a waypoint in the database and the end of the outbound leg will be determined by the ATD."

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GPS Holding Pattern