Reference

ATC & Flight Glossary

Definitions for the air traffic control and flight planning terms used throughout PFControl — flight strips, clearances, ACARS, and the PFATC network. For a walkthrough of the app itself, see the How to Use PFControl guide.

Categories

Flight Planning & Clearance

Flight Plan
The set of details a pilot submits for a flight — callsign, aircraft type, flight rules, destination, cruising level, and route — either through a session's submit link or the guest-accessible submission form. Submitting one creates a flight strip on the controller's board.
Callsign
The identifier a flight operates under, such as an airline code followed by a flight number. PFControl parses recognized airline prefixes and displays them alongside the raw callsign on the strip board.
ICAO Code
The four-letter code identifying an airport, used when creating a session and as the departure/arrival fields on a flight plan.
Route
The planned path of airways and waypoints a flight follows between departure and arrival, entered as free text or built automatically with the Generate button, which picks a SID, STAR, and cruising altitude that respects altitude rules.
SID (Standard Instrument Departure)
A published departure procedure a flight follows out of an airport. PFControl infers the SID from the first token of a route string when it matches a procedure-like pattern, and displays it in its own column on the departures table.
STAR (Standard Terminal Arrival Route)
A published arrival procedure a flight follows into an airport, inferred from the route the same way as a SID and shown on the arrivals table.
RFL (Requested Flight Level)
The cruising altitude a pilot requests when submitting a flight plan, shown alongside the CFL on the departures table.
CFL (Cleared Flight Level)
The cruising altitude a controller has actually cleared the flight to, which may differ from the pilot's requested level.
Alternate Airport
A backup destination a pilot may list on their flight plan in case the primary arrival airport can't be used.
PDC (Pre-Departure Clearance)
The clearance a pilot requests and receives over ACARS before pushing back, confirming their route and cruising level are approved by the controller working that airport.
Clearance
Explicit permission from a controller for a pilot to take a specific action — push back, taxi, take off, or proceed on a route — tracked through a flight's status and PDC state.

Flight Strips & ATC Operations

Flight Strip
The live, editable row representing a single flight on a session's board — the digital equivalent of a paper strip, updating in real time for every controller in the session.
Squawk Code
A four-digit transponder code assigned to a flight so it can be distinguished on radar. PFControl includes a one-click button to generate a new random code for a strip.
Stand
The gate or parking position a departing flight is assigned before pushback, tracked as its own column on the departures table.
ADEP (Aerodrome of Departure)
The origin airport of an arriving flight, shown on the arrivals table.
ADES (Aerodrome of Destination)
The destination airport of a departing flight, shown on the departures table.
Wake Turbulence Category
A classification of an aircraft type based on the turbulence it generates, used alongside aircraft type on the strip board to help controllers apply appropriate spacing.
Status Flow
The sequence a flight strip's status moves through as a flight progresses. Departures run PENDING → STUP → PUSH → TAXI → RWY → DEPA; arrivals run APP → RWY → TAXI → GATE.

Communications

ACARS
PFControl's messaging terminal for a signed-in pilot's flight — a log of the submitted flight plan, PDC requests and clearances, and any messages a controller sends. Opening ACARS requires being signed in, since it's tied to your account. See ACARS & Requesting PDC in the guide.
ATIS
Automated Terminal Information Service — a recorded broadcast of current airport conditions and active runway. PFControl can auto-generate an ATIS formatted for the PFATC ATIS channel when you create a PFATC session.
Contact Me Message
A direct message a controller can send a pilot through ACARS — for example asking them to switch to a specific frequency — which appears in the pilot's terminal the same way a clearance does.

Network & Sessions

Session
A flight strip board for a single airport, created from Create Session. A Standard session is private to whoever has the link; a PFATC session publishes its traffic to the Network Overview.
PFATC Network
An organized, network-wide mode for controlling: PFATC sessions share departures and arrivals with each other and appear together on the Network Overview, rather than staying isolated to a single session.
Network Overview
A live, network-wide dashboard at /overview showing every open PFATC session's active departures and arrivals at once.
Sector
An area of airspace or set of airports a controller is assigned permissions for, determining which flights they can edit from the Network Overview and which airports' charts surface first in the Chart Drawer.

Flight Rules & Aircraft

IFR (Instrument Flight Rules)
A flight plan type indicating the flight will operate under instrument procedures, typically involving a full route, assigned altitudes, and ATC clearances at each stage.
VFR (Visual Flight Rules)
A flight plan type indicating the flight will operate visually rather than on instrument procedures, generally with a simpler clearance flow.

Profiles & Community

Controller Rating
Feedback a pilot can leave for a controller after a session, contributing to that controller's average rating shown on their public profile.
Developer API
PFControl's public REST API for reading session, flight, and account data with a scoped key. See the full API reference.