Definition
A term used by air traffic control to inform a pilot that the aircraft has been identified on the controller's radar display and that radar flight following will be provided until radar identification is terminated. When 'radar contact' is established, the pilot is no longer required to make position reports over compulsory reporting points.
Plain English
The controller is telling you, 'I can see you on my screen.' From this point on, they are watching your aircraft and tracking your position, so you don't need to call in over each reporting point anymore.
Context Anchor
Heard on the radio after a controller identifies your aircraft, often during departure, approach, or when requesting traffic advisories.
Derivation
Radar comes from “radio detection and ranging,” meaning finding an object and its distance by using radio waves. Contact comes from the idea of being connected or in touch; in this phrase, it means the controller has connected your aircraft with a specific radar target, not that anything is physically touching.
Why Pilots Care
Radar Contact confirms you are under active radar surveillance, enabling ATC to issue vectors, altitude assignments, and traffic advisories that increase situational awareness and safety.
Intuition Check
Do not read “contact” here as just radio contact. “Radar contact” means the controller has identified your aircraft on radar.
Example Sentence 1
After takeoff from Centennial, the pilot checked in with Denver Departure and heard, 'Cessna 12345, radar contact, climb and maintain 8,000.'
Example Sentence 2
Once radar contact was lost in the mountains, ATC instructed us to report position at the next fix.