(See USER REQUEST EVALUATION TOOL.)
TRAJECTORY MODELING- The automated pro-cess of calculating a trajectory.
TRANSCRIBED WEATHER BROADCAST-A continuous recording of meteorological and aeronau-tical information that is broadcast on L/MF and VOR facilities for pilots. (Provided only in Alaska.)
(Refer to AIM.)
TRANSFER OF CONTROL- That action whereby the responsibility for the separation of an aircraft is transferred from one controller to another.
(See ICAO term TRANSFER OF CONTROL.)
TRANSFER OF CONTROL [ICAO]- Transfer of responsibility for providing air traffic control service.
TRANSFERRING CONTROLLER- A controller/ facility transferring control of an aircraft to another controller/facility.
(See ICAO term TRANSFERRING
UNIT/CONTROLLER.)
TRANSFERRING FACILITY-
(See TRANSFERRING CONTROLLER.)
TRANSFERRING UNIT/CONTROLLER [ICAO]-Air traffic control unit/air traffic controller in the process of transferring the responsibility for providing air traffic control service to an aircraft to the next air traffic control unit/air traffic controller along the route of flight.
Note: See definition of accepting unit/controller.
TRANSITION-
a..The general term that describes the change from one phase of flight or flight condition to another; e.g.,
transition from en route flight to the approach or transition from instrument flight to visual flight.
b..A published procedure (DP Transition) used to connect the basic DP to one of several en route airways/jet routes, or a published procedure (STAR Transition) used to connect one of several en route airways/jet routes to the basic STAR.
(Refer to DP/STAR Charts.)
TRANSITION POINT- A point at an adapted number of miles from the vertex at which an arrival aircraft would normally commence descent from its en route altitude. This is the first fix adapted on the arrival speed segments.
TRANSITION WAYPOINT-The waypoint that defines the beginning of a runway or en route transition on an RNAV SID or STAR.
TRANSITIONAL AIRSPACE- That portion of controlled airspace wherein aircraft change from one phase of flight or flight condition to another.
TRANSMISSOMETER- An apparatus used to determine visibility by measuring the transmission of light through the atmosphere. It is the measurement source for determining runway visual range (RVR) and runway visibility value (RVV).
(See VISIBILITY.)
TRANSMITTING IN THE BLIND- A transmis-sion from one station to other stations in circumstances where two‐way communication cannot be established, but where it is believed that the called stations may be able to receive the transmission.
TRANSPONDER- The airborne radar beacon receiver/transmitter portion of the Air Traffic Control Radar Beacon System (ATCRBS) which automati-cally receives radio signals from interrogators on the ground, and selectively replies with a specific reply pulse or pulse group only to those interrogations being received on the mode to which it is set to respond.
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