RTCA

formerly the Radio Technical Committee on Aeronautics

RWSL

runway status lights


SAMS

special-use airspace management system

SATORI

situation assessment through recreation of incidents

SDTF

surface development and test facility

SIMMOD

airport and airspace simulation model

SIMNET

simulation network

SMA

surface movement advisor

STAR

studies, tests, and applied research

STARS

standard terminal automation replacement system


TACAN

tactical navigation

TAP

terminal area productivity

TCAS

traffic alert and collision avoidance system

TDWR

terminal Doppler weather radar

TLS

tactical load smoother

TMA

traffic management advisor

T-NASA

taxi navigation and situation awareness

TP

telecommunications processor, trajectory predictor

TRACON

terminal radar approach control

TTT

total transmission time

TVSR

terminal voice switch replacement

TWIP

terminal weather information for pilots


UAT

universal access transceiver

URET

user request evaluation tool


VFR

visual flight rules

VSCS

voice switching communication system


WAAS

wide area augmentation system

WARP

weather and radar processor

WSP

weather systems processor



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