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Aerodrome Procedures

Liverpool

Air Controller:

The AIR controller is responsible for all movements on all runways. AIR operates on frequency 126.350.

AIR is responsible for deciding on the runway in use.

Ground Movement Controller:

GMC is responsible for all ground movements. GMC operates on frequency 121.950. GMC is a continuous operation and all surface movement of aircraft, vehicles and personnel on the Manoeuvring Area is subject to ATC authority. As there is no separate GMP controller at Liverpool, GMC is responsible for issuing aircraft with their departure clearances.

Aerodrome Traffic Monitor (ATM):

Liverpool is fitted with an ATM and this can be simulated on IVAO. It has a range of about 15nm and displays SSR labels with mode C read out. The ATM may be used to:

Determine the landing order, spacing and distance from touchdown information of arriving aircraft
Identify departing aircraft and validate the SSR codes.
Monitor the progress of over flying aircraft
Establishing separation between departing aircraft
Pass traffic information
Establish separation in the event of a missed approach
Assist in taking corrective action when separation between arriving aircraft becomes less than the prescribed minima.

Wind Shear:

When a pilot reports wind shear, this must be passed to inbound and outbound aircraft until the report appears on the ATIS. Reports should contain the following information:

Warning of the presence of wind shear
Height or height band and time the wind shear was encountered
Details of the effect on the aircraft

Braking Action:

If there is a cause to believe that braking action is less than good, this must be confirmed and information should be passed to departing and arriving aircraft.