Instruments - P-12820128

T-45C TS INav-04; ADV INav-02

Components and Characteristics of the Instrument Landing System (ILS)

2. Instruments

Sg 5, fr 12

ILS Needles (ADI)

a. ADI

(1) Localizer steering needle displays ILS localizer deviation

(2) Glideslope steering needle displays glidepath deviation

b. HSI

Sg 5, fr 13-14

(1) ILS steering can only be selected in CDI mode

ILS indicator needles,

HSI and HUD

(2) When only ILS steering is selected on the HSI, the CDI

indicates aircraft deviation from the ILS localizer

(3) The ILS CDI localizer deviation is relative to the course line

arrow head regardless of the course entered in CRS

NOTE: Good pilot technique includes setting the published

ILS course in CRS to avoid confusion.

(4) Whenever another steering option, TCN, WYPT, or WO/S

is selected in addition to ILS steering, the course line

displays TCN, WYPT, or WO/S deviation, not ILS localizer

deviation

HUD

(1) The selected navigation steering mode is displayed

(a) TILS - TACAN and ILS steering

(b) TCN - TACAN steering

(d) O## - Waypoint Offset steering

(e) VOR - VOR steering

(f) ILS - ILS steering

(g) WILS - Waypoint and ILS steering

(h) OILS - Waypoint Offset and ILS steering

(2) Distance and time-to-go to selected steering point displayed

adjacent to selected navigation steering mode

NOTE: Distance and time-to-go not shown with ILS or

VOR steering.

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(2-02) Original