ILS Operation

TM 11-5826-258-24

(3) When the VOR station is reached, set the

Continue to fly on the procedure turn until the final

course card to the published vor-to-outer marker ra-

approach line is intercepted and the VOR/localizer

dial. Fly past the VOR station and become established

needle centers. When the VOR/localizer needle cen-

on the vor-to-outer marker radial. The to/from in-

ters, turn to the final approach course. If the needle

dicator should indicate FR.

deviates from the center, fly toward the needle to keep

(4) Before the outer marker is reached, switch the

the aircraft on course and center the needle.

receiving set to the localizer frequency. The to/from in-

(6) After the runway comes into view, make a fi-

dicator is blanked and the course card has no effect on

nal approach and landing,

localizer.

2-6. ILS Operation

(5) As the outer marker is reached, the final ap-

proach course LO the runway is intercepted and the

a. ILS Approach. The ILS approach is executed

VOR/localizer needle will be centered.

when the desired landing runway has ILS facilities and

(6) Turn to the reciprocal of the final approach

the VOR station is not in line with the desired runway

and keep the VOR/localizer needle centered. The

(fig. 2-4). Proceed as follows:

FLY TO CENTER VOR/LOCALIZER AND

GLIDE SLOPE NEEDLES COURSE

CARD POSITION HAS NO EFFECT AND

TO/FROM INDICATOR IS BLANKED

ON LOCALIZER FREQUENCY.

Figure 2-4. ILS Approach.

VOR/localizer needle normally deviates toward the

(1) As the aircraft comes within range of the VOR

proper path. but when outbound on the localizer front

station, set the course card to the specified radial

course (or inbound on the localizer back course), the de-

(240 radial) or a convenient inbound radial and tune

viation is reversed or away from the proper path.

the receiving set to the VOR station.

Therefore, fly away from the needle to center the nee-

(2) Fly toward the desired radial to center the

dle when outbound.

VOR/localizer needle.

2-4