Apollo 50, 55, 60, 65 key, Holding Patterns, Approach Basics (GX50/60), ￿Third, enable sequencing, ￿First, suspend sequencing, ￿Second, set the inbound course

Approach Basics (GX50/60)

Holding Patterns

WPT SEQ

OBS/HLD

ENTER

ENTER

A holding pattern is operationally the same as a procedure turn except that you usually intend to make repeated crossings of the waypoint on a specific inbound course. Like the procedure turn, the steps will always be:

￿First, suspend sequencing￿Second, set the inbound course.￿Third, enable sequencing.

1.Verify that sequencing is suspended, the OBS/HLD annunciator is lit prior to crossing the waypoint. Suspend sequencing by pressing the

OBS/HLD key.

2.After crossing the waypoint, establish the desired inbound course to the waypoint by pressing ENTER at the “Set OBS Course” message. Select the inbound course with the SMALL and LARGE knobs. Set waypoint sequencing to manual. Now, press

ENTER.

3.Enter the holding pattern by the most appropriate entry method. For example, Direct, Teardrop, or Parallel, just as you would enter that holding pattern at a VOR. The following example shows holding at the Newburg VOR (UBG) with 020° inbound selected as the OBS course to UBG.

"TO" Side "FROM" Side

If sequencing is enabled on the "TO" side of a line perpendicular to the destination waypoint, the flightplan will sequence to the "NEXT" waypoint when you cross the line.

020

HIO (NEXT)

If sequencing is enabled on the "FROM" side of a

line perpendicular to the

UBG (TO) inbound course at the active destination waypoint, the flightplan will sequence immediately to the "NEXT" waypoint.

Perpendicular

to

020

3S2 (FROM)

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