How long will the ILS take to build?
The ILS will take 12-18 months from commencement of construction to approval for use by aircraft. It is anticipated that residents can expect to see aircraft flying the ILS in mid to late 2018. Before it is available to airlines the Civil Aviation Safety Authority will require that the ILS flight path be flown by a specialist calibration aircraft.
When will the ILS be used?
It is essential to remember that air traffic control are required to provide the most appropriate approach procedure available to ensure the safe landing of aircraft and in all weather conditions, pilots must be able to see the runway before landing.
The ILS will be available every day of the year to aircraft (international and domestic) arriving on Runway 14 at Gold Coast Airport, however use of this procedure will depend on a number of conditions.
The precise number of flights expected to use the ILS is difficult to predict as the decision to fly the ILS approach is made by the pilot based on a number of factors. These include weather conditions, as well as the type of landing technology used by respective airlines.
Aircraft arriving to Gold Coast Airport from the north onto Runway 14 prefer to use the satellite-based navigation procedure ‘Required Navigation Performance’ (RNP) as this approach is the most technologically advanced – with both horizontal and vertical guidance and provides the greatest safety and efficiency benefits. This approach keeps aircraft over water until Currumbin Creek.
If the aircraft is operated by an Australian or New Zealand carrier, the pilot is also permitted to request a visual approach, which follows a similar flight path to the RNP approach.
If the weather on the day is poor visual approaches may not be available, as the line of sight to the runway may be obscured by cloud. In this case, providing the cloud is high enough for the pilot to see the runway one of the satellite-based navigation procedures (RNP or Area Navigation (RNAV)) approaches will be used.
Primarily, when the weather is very poor and the cloud is low, with limited visibility it is likely that all aircraft arriving at Gold Coast airport from the north using Runway 14 will require the use of the ILS to see the runway.
The ILS may also be used if operationally required or required for emergencies such as a failure of the satellite or any equipment that prevents use of satellite-based navigation.
Will noise abatement procedures be used?
The Administrative Appeals Tribunal (AAT) decision has required that noise abatement measures be drafted for implementation.
Noise Abatement Procedures will be put in place before the ILS is available to airlines to ensure that alternative flight paths will be used unless operational conditions require or as a contingency if there are no other options available to the pilot.
Noise abatement procedures will also apply to military and jet training aircraft.
Will training aircraft be allowed to use the ILS in fine weather?
Light aircraft currently carry out pilot training on instrument approaches close to the ILS flight path and overfly similar residential areas to the ILS flight path. Whilst these flights will continue to be used, Airservices may limit the schedule for, or amount of, light aircraft using the ILS. Jet aircraft training will not be permitted.
Are military aircraft permitted to use the ILS?
Military aircraft will be subject to the same Noise Abatement Procedures as other aircraft. The ILS will only be available to these aircraft when operational conditions require.