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RVA
RVA 1 Radar vectoring area.
2 Régie des Voies Aériennes (Belgium, see RLW).
RvA National accreditation body (Netherlands).
RVC Radar video corridor.
RVD 1 Radar video.
2 Rear-view display.
3 See next.
RVD/B Rendezvous and docking/berthing of spacecraft.
RVDP Radar video data processor.
RVDT 1 Rotary, or rotating, variable, or voltage,
differential transformer, or transducer.
2 Rotating voltage-displacement transformer.
R/VGPO Synchronized range and velocity deception,
see RGPO, VGPO.
RVL Rolling vertical landing.
RVO Runway visibility by observer.
RVP 1 Reid vapour pressure.
2 Ramp void pressure.
RV-PVO Radioteknicheski-Voiska PVO, radiotechnical
air-defence troops (R).
RVR 1 Runway visual range; C adds centre, R rollout,
T touchdown area.
2 Rear-view radar.
3 Reverse-velocity rotor.
RVR system Various electro-optical instruments for
measuring RVR without subjective interpretation,
usually by calibrated light source and transmissometer
receiver separated by distance great enough to avoid too
much error from local smoke.
RVS Reduced vertical separation[s]; M adds minima
[US often minimums], MK minima kit.
RVSD Revised.
RVSM Reduced vertical-separation minima, or
minimum.
RVSN Strategic rocket forces (USSR).
RVSP Radar video signal processor.
RVT Remote video terminal.
RVV Runway visibility value.
RV/WH Re-entry vehicle/warhead.
RW 1 Radiological weapon(s).
2 Retractable wheel (sailplanes).
3 Rigged wet, ie for spraying (ag-aircraft).
RZI
4 Reconnaissance wing.
5 Rain shower.
6 Runway.
R/W 1 Marine aircraft on water total resistance divided
by weight, equivalent to an L/D ratio.
2 Runway.
3 Read/write.
RWA 1 Reaction wheel assembly.
2 Rhomboid-wing aircraft.
3 Rotating-Wing Aviation, RU adds Research Unit
(USA).
RWB Rotating warning beacon.
RW/D Rigged wet and dry, ie for both spraying and
dusting (ag-aircraft).
RWE Radar warning equipment.
RWG Rotorcraft Working Group (UK/US).
RWI Runway incursion.
RWIS Runway weather information system.
RWM 1 Code for SAR helicopter (ICAO).
2 Read-only wire (or composite-wire) memory.
3 Read/write memory.
RWR 1 Rear-warning radar.
2 Radar warning receiver.
RWRT Real world, real time.
RWS 1 Radar warning system.
2 Range while search.
3 Remote workstation.
RW+S Rigged wet plus spreader (ag-aircraft).
RWT Radar warning trainer.
RWTS Rotary-Wing Training School (RAF, WW2).
RWU Rain shower, intensity unknown.
RWY, rwy Runway (ICAO); -TDZ adds touchdown
zone.
RX 1 Report [when you are] crossing [specified point].
2 Receive.
Rx Receiver, or reception only.
R/X Range extension.
R(X) Correlation function.
Ryton A trade-name for PPS (4), with high opacity to
EMI(1) (Phillips Petroleum).
RZ 1 Recovery zone.
2 Reconnaissance zone.
3 Return to zero.
RZI Real-zero interpolation.
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