Final answer:
Class IIIA/B combined tower and RATCF provide control service to aircraft, en route radar service, and advisory service to pilots. These services ensure safe and efficient navigation of aircraft within and around airport airspace.
Step-by-step explanation:
Class IIIA/B combined tower and RATCF (Radar Approach Control Facility) provide several services with the primary objective of ensuring safe and efficient air navigation. Here are the services they provide:
- Control service to aircraft: This includes providing air traffic control services to aircraft operating in the vicinity of an airport. This typically involves managing takeoffs and landings to ensure separation between aircraft.
- En route radar service: This service is provided to aircraft navigating through a flight information region. It allows for the tracking and guidance of aircraft to ensure they remain on a safe and efficient flight path.
- Advisory service to pilots: This consists of offering advice and information useful for the safe and efficient conduct of flights, such as weather updates, navigation aid status, and other relevant air traffic services.
Maintenance service for facilities is not typically a direct service provided to pilots or aircraft but rather an internal operational function. Therefore, it is not included in the primary services offered by class IIIA/B combined tower and RATCF.