IFR Flight Services and ATC Control Facilities

The controller’s primary responsibility is separation of aircraft operating under IFR. This is accomplished with ATC facilities, to include the FSS, airport traffic control tower (ATCT), terminal radar approach control (TRACON), and air route traffic control center (ARTCC). Flight Service Stations (FSS) A pilot’s first contact with ATC is usually through FSS, either by radio … Read more

ATC Communication Equipment and Procedures

Communication Equipment Navigation/Communication Equipment Civilian pilots communicate with ATC on frequencies in the very high frequency (VHF) range between 118.000 and 136.975 MHz. To derive full benefit from the ATC system, radios capable of 25 kHz spacing are required (e.g., 134.500, 134.575, 134.600). If ATC assigns a frequency that cannot be selected, ask for an … Read more

The Air Traffic Control System for IFR Pilots

The Air Traffic Control (ATC) system is a coordinated network of people, procedures, and technology designed to ensure the safe, orderly, and efficient flow of air traffic within the National Airspace System (NAS). For pilots operating under Instrument Flight Rules (IFR), ATC becomes an essential partner, providing separation from other aircraft, terrain, and weather while … Read more

IFR Flight Control Sequence

The IFR system is flexible and accommodating if pilots do their homework, have as many frequencies as possible written down before they are needed, and have an alternate in mind if the flight cannot be completed as planned. Pilots should familiarize themselves with all the facilities and services available along the planned route of flight. … Read more

ATC Approach Control Facility and Approach Control Advances

Approach Control Facility An approach control facility is a terminal ATC facility that provides approach control service in the terminal area. Services are provided for arriving and departing VFR and IFR aircraft and, on occasion, en route aircraft. In addition, for airports with parallel runways with ILS or LDA approaches, the approach control facility provides … Read more

ATC Inflight Weather Avoidance Assistance

ATC Radar Weather Displays ATC radar systems are able to display areas of precipitation by sending out a beam of radio energy that is reflected back to the radar antenna when it strikes an object or moisture, which may be in the form of rain drops, hail, or snow. The larger the object, or the … Read more