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TSF
ministry for civil defence, emergencies and natural
disasters (R).
TSF 1 Technical Supply Flight (RAF).
2 Originally telegraphie sans fil, = radio, now Télécoms
sans Frontières (F).
3 Terascale Simulation Facility (LLNL).
tsfc, TSFC Thrust specific fuel consumption; SFC of
air-breathing jet engine.
TSFE Thermally stimulated field emission.
TSGR Thunderstorm plus hail (ICAO).
TSGT Transportable satellite ground terminal.
TSHWR Thundershower.
TSI 1 Turn and slip indicator.
2 Track-situation indicator.
3 Transportation Safety Institute (US, from 1971).
4 Training Systems Integrator.
5 Trading Standards Institute (UK).
6 Total-sky imager.
TsIAM Common Western rendition of Central
(research) Institute for Aviation Motors (USSR, R).
TSIC Touch-screen interactive control.
TSIO US piston-engine code: turbosupercharged,
direct injection, opposed; now called TIO.
TSIP Trimble Standard interface protocol.
TSIR Total system-integration responsibility (AFSC).
TsKB Common Western rendition of Central
Construction (design) Bureau (USSR, closed).
TSM 1 Autothrottle servo mount.
2 Trouble-shooting, or technical-support, manual.
TSMO Time since major overhaul.
TSMP Terminal-segment master plan.
TSMT Transmit.
TSMTR Transmitter (alternative to XMTR).
TSN Time, or total, since new.
TsNII English rendition of CSRI, Central Science
Research Insitute (R).
TSNM Transportation Sector Network Management
(TSA3).
TSNT Transient.
TSO 1 Time since overhaul.
2 Technical service order (FAA).
3 Technical standard(s) order (CAA, from 1947).
4 Also interpreted as technical standing order.
5 Transportation Screening Officer (TSA).
TSOC Touch-screen operator console.
TSOM See Tom.
TSOR Tentative specific operational requirement.
TSP 1 Turret stabilized platform.
2 Transonic small perturbation.
3 Thermal scanning polygon [M adds motor].
4 Time/space position [I adds indication or information].
5 Total support package (industry/RAF).
6 Transmitted signal power.
7 Twisted shielded pair.
8 Transmitter/responder.
9 Tailstrike protection.
TSPG Training Systems Product Group (USAF).
TSPR Total system-performance, or program,
responsibility (AFSC).
TSQLS Thundersqualls.
TSPI Time/space position information.
TSR 1 Torpedo spotter reconnaissance.
2 Tactical strike/reconnaissance.
TTC
3 Twin side-by-side rotors (helicopter).
TSRA Thunderstorm plus rain.
TSS 1 SST (F).
2 Tunable solid-state (laser).
3 Tethered satellite system.
4 Tacco sub-system.
5 Tactical surveillance sonobuoy, or supervisor.
6 Tail-strike sensor.
7 Target sight system.
8 Tangential signal sensitivity.
9 Technology support and services.
10 Tactical satcom system.
TSSA 1 Thunderstorm plus duststorm or sandstorm
(ICAO).
2 Transport Salaried Staff Association (UK trade
union).
TSSAM Tri-Service stand-off attack missile.
TSSC 1 Technical supply subcommittee (AEA).
2 Training System Support Center (F-22).
3 Technical and Safety Standing Committee.
TSSR Total-systems support responsibility.
TSSTS Tactical sigint system training simulator.
TST 1 Transonic transport (usually M 1.1–1.2).
2 Threshold sampling time.
3 Technical support team.
4 Time-sensitive target, or targeting.
TSTA Takeoff safety training aid.
TTSM Time-source transition module.
TSTM[S] Thunderstorm[s].
TSTO Two stage to orbit.
TSU Telebrief-[ing] switching unit.
t SU Total wheel spin-up time on landing.
TSUS Tariff schedules of the US.
TSV 1 Time since shop visit.
2 Through-sight video.
TSW 1 Tactical Supply Wing (RAF).
2 Transverse shear-wave.
TT 1 Total time.
2 Dry-bulb [total] temperature.
3 Teletypewriter (ICAO).
4 Turnround time.
5 Target towing (role prefix, UK, defunct).
6 All-weather (F).
7 Threat transmitter.
8 Twin-tandem landing gear.
9 Torpedo tube.
10 True track.
11 Test tools.
TTA Total-terrain avionics.
TTAE See TTAF/E.
TTAF Total time on airframe.
TTAF/E, TTAF&E Total time, airframe and engine.
TT&C Telemetry, tracking and control, or command.
TT&L Tracking, targeting and locating (USA).
TTB 1 Tanker/transport/bomber (USAF aircrew).
2 Target-triggered burst.
TTBT Threshold Test-Ban Treaty.
TTBTS TTB(1) training system.
TTC 1 Tracking, telemetry and command.
2 Technical Training Center (USAF), or Command
(RAF, formerly).
3 Tape-transport cartridge.
4 Top-temperature control.
5 Temperature trim control.
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