BMS F-16C/D 4.34, Flight Manual

Page: 145 / 234

T.O. BMS1F-16CM-1 BMS 4.34 Change 2.00
BMS 4.34 Dash 1
© Red Dog 2012-2019
Page: 145
1.15 INSTRUMENT LANDING SYSTEM
The ILS is used to perform precision instrument approaches using azimuth (localizer) and vertical
(glideslope) approach cues in the cockpit independent of any airport precision radar. The system
operates on VHF frequencies of 108.10 to 119.95 MHz. The ILS is turned on and off using the ILS
volume control knob on the AUDIO 2 Panel on the left console. If the ILS system is left switched off
ILS cues are not displayed on any flight instrument, as the receivers are offline.
The system is controlled via the T-ILS DED page, which is accessed with the T-ILS button on the ICP.
Command steering (CMD STRG) behaves like a flight director and is automatically mode-selected on
FCC/MMC power up, but may be deselected/selected by positioning the asterisks around CMD STRG
and pressing the M-SEL 0 button.
The pilot tunes the ILS by entering the desired four or five digit ILS frequency in the scratchpad and
pressing ENTR. The system recognises that an ILS frequency has been entered and the asterisks
step to the Course (CRS) field. The pilot then keys in the course (runway heading) with the ICP keys
and presses ENTR.
ILS cueing is presented on the HUD (localizer, glideslope, command steering cue), ADI (localizer &
glideslope) and the HSI (localizer only). The deviation of each ILS bar is marked with 2 dots on each
side of the deviation. One dot corresponds to a deviation of 2.5°. The ILS cues are therefore able to
give accurate position within 5° each side of its centreline.