I.L.S. - INSTRUMENT LANDING SYSTEM
LEADING PARTICULARS
| Manufacturer: | Standard Telephones and Cables (STC) |
| Installation: | A.R.I. 18011 |
DESCRIPTION
The Instrument Landing System is a radio navigation aid, used when aligning the aircraft with runways equipped with I.L.S. localiser, glidepath and marker transmitters.
The localiser signal provides a port/starboard alignment, while the glidepath signal provides vertical alignment. The marker beacons provide indication of the distance left to the runway.
The I.L.S. localiser and glidepath signals are displayed by moving bars on the navigation display, while the marker beacons illuminate a flashing lamp below te display, the frequency of flashing depends on which marker beacon has been passed.
ADVERTS
Adverts by S.T.C. for the I.L.S. system as used in the Lightning.
STC advert - SR14 and SR15 I.L.S. receivers
Published: Flight, 12-01-1950
Source: Aviation Ancestry
The diagram in this advert demonstrateds the outer, middle and boundary beacons, and illustrates the glidepath angle.
STC advert - SR14 and SR15 I.L.S. receivers
Published: Aeroplane, 01-09-1950
Source: Aviation Ancestry
REFERENCES
T Mk.5 electrical "Vol. 1":
AP4700E, Vol.1, Book 2, Sect.8, Chap.2, A.L.1, Nov 64 - Paragraph 5
Flying, Aircraft and Equipment:
AP129, Volume 1, Part 2, Section 4, Chapter 1, August 1954, I.L.S..
WANTED
The following AP manual would help in fully understanding the system:
AP116B-0408 - I.L.S. Airborne Equiipment (A.R.I.18011)