Figure 20 - P-8010134

INSTRUMENT NAVIGATION

your EFC expires. When it expires, leave holding, proceed to the IAF, and commence your

approach.

Frequently, you will be cleared for a specific number of turns in holding in lieu of being

given an EFC time. If, after receiving these instructions and clearance to commence the

approach, you should lose your radios, execute the prescribed number of turns, proceed to the

IAF and commence your approach.

Meeting An EFC Time

For example, if you have four minutes to the expiration of your EFC, you could fly a

pattern in which each 180 turn takes one minute (3 of turn/second), and in which each of the

legs requires one minute, making a total of four minutes. Any combination is acceptable, as

long as you stay on the holding side of the radial, do not exceed the outer DME limit of the

pattern, and fly the inbound course along the holding radial.

NON-DME HOLDING

When utilizing a navaid other than TACAN, or other DME equipped navaid, the

procedures will vary somewhat. Because no distance reference is available without DME, you

will have to time your legs.

The rules regarding timing legs are:

14,000' MSL and below

= 1 minute

Above 14,000' MSL

= 1 1/2 minutes

In the case of non-DME holding, the navaid, itself, is the holding fix. So, if you were told

to hold utilizing a VOR or NDB station, you would hold directly over the navaid itself, and

your inbound leg would be timed appropriately according to your altitude.

The holding clearance would retain the essential elements and might sound like this:

"1F47 hold east of Saufley VOR, 12,000'; left turns, EFC 1930Z." And the pattern would

look like this:

Figure 20

Headwind or Tailwind Corrections in a Timed Holding Pattern

6-16 HOLDING