TNAG-1448-FCO40-1947-Executive-Council-of-Hong-Kong-memoranda-and-minutes-of-meet-1986 — Page 177

SECOL THETFORD NORFOLK

Restriction Criteria

ANNEX C

There are a total of 19 different restriction criteria applicable in the 50° Sector area to serve various protection purposes and they are described in the plans by reference to Area Codes. A brief descrip- tion of the purposes is given below, also by reference to Codes :-

AA

AB

AC

AD, AE

AG

AF, АН, АК

AL, AM

AJ

AI, AN, AO AQ1-AQ3

AF

-

To safeguard the operation of navigational lights.

To ensure the reception of a radio- navigational aid at Tathong Point by aircraft on the runway using the aid for departure.

To safeguard the take-off climbs of aircraft.

To safeguard the approaches of aircraft.

To ensure the proper reception of glidepath signals by aircraft approaching using the Instrument Landing System.

To protect the proper operation of aeronautical radio-communication equipment at Cape D'Aguilar.

To ensure proper operation and rece ption of radio navigational aids at Tathong Point by aircraft in flight.

To safeguard the operation of air- craft using radar vectoring procedures.