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V

VDA —  VI —  VOC

ACRONYM	DEFINITION	CONTRIBUTOR
v	volt (Symbol) (SI unit of electric potential difference)	Langley
V&T	Verification and Test	Goddard
V&V	Verification and Validation	Goddard
V/F	Voltage-to-Frequency	Goddard
V/STOL	Vertical/Short Takeoff and Landing	CASI
V/T	Voltage/Temperature	Goddard
VAB	Vehicle Assembly Building (KSC NASA) (Also SAB Satellite (or Spacecraft) Assembly Building)	CASI
VAC	Volts Alternating Current	Goddard
Vac	Volts Alternating Current	CASI
VADE	Vandenberg Automatic Data Evaluation	CASI
VAFB	Vandenberg Air Force Base	CASI
VAL	Vehicle Assembler/Loader	Goddard
VALT	VTOL Automatic Landing Technology (Program)	CASI
VANG 1	Variable Area Nozzle Gas Injection	CASI
VAP	Verification and Acceptance Program	Goddard
VAS	Variable Angle Scatterometer	CASI
VAS	VISSR Atmospheric Sounder	CASI
VAS/CCOPE	Vertical Atmospheric Sounder/Cooperative Convective Precipitation Experiment	CASI
VASC	Virginia Air and Space Center	Langley
VASI	Visual Approach Slope Indicator	CASI
VASIMR	Variable Specific Impulse Magnetoplasma Rocket	CASI
VASLA	Virginia Chapter Special Libraries Assocation	Langley
VAST	Versatile Avionics Shop Test System	CASI
VATA	Vertical Assembly and Test Area	Goddard
VATS	Vertical Assembly Test Stand	Goddard
VAX	Virtual Address Extender	Goddard
VC	Virtual Channel	Goddard
VCD	Vapor Compression Distillation	CASI
VCDU	Virtual Channel Data Unit [CCSDS]	Goddard
VCE	Variable Cycle Engine	CASI
VCG	Vapor Crystal Growth	CASI
VCHP	Variable Conductance Heat Pipe	Goddard
VCHS	Visibly Clean Highly Sensitive	Goddard
VCID	Virtual Channel Identification (CCSDS)	Goddard
VCIP	Volcano-Climate Interaction Program	Langley
VCL	Vegetation Canopy Lidar Mission	Goddard
VCLAD	Vertical Cavity Laser Amplifier Detector	CASI
VCM	Velocity Control Mode	CASI
VCM	Volatile Condensable Material	Goddard
VCO	Voltage Controlled Oscillator	CASI
VCP	Virtual Control Panel	Goddard
VC-PDU	Virtual Channel-Protocol Data Unit	Goddard
VCR	Video Cassette Recorder	CASI
VCS	Vapor Cooled Shields	Goddard
VCS	Vapor Cooled Shroud	Goddard
VCS	Vehicle Computer Simulation	Goddard
VCS	Voice Controlled System	CASI
VCWS	Velocity vector Control Wheel Steering	CASI
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VDA	Vacuum Deposited Aluminum	Goddard
VDA	Vapor-Deposited Aluminum	Goddard
VDC	VCL Data Center	Goddard
VDC	Voltage Direct Current	Goddard
Vdc	Volts Direct Current	CASI
VDD	Version Description Document	Goddard
VDE	Valve Drive Electronics	Goddard
VDMA	Verbund Deutscher Maschinen und Anlagenbau eV	CASI
VDOP	Vertical Dilution of Precision	CASI
VDS	Vehicle Dynamics Simulation	Goddard
VDS	Voice Distribution System	Goddard
VDT	Video Display Terminal	CASI
VDU	Visual Display Unit	Goddard
VE	Value Engineering	Langley
VEFR	Vehicle Frame	Goddard
VEM	Vibro Elastic Material	Goddard
VEMAP	Vegetation/Ecosystem Modeling and Analysis Project	Goddard
VER	Vertical Ejection Rack (for bomb ejection)	CASI
VERSACOMM	Versatile Contour Measuring Machine	CASI
VESPER	Venus Sounder for Planetary Explorer	Goddard
VEST	Vehicle Electrical System Test	Goddard
VETIME	Vehicle Elapsed Time Word	Goddard
VEU	Very Extreme Ultraviolet	CASI
VEUV	Very Extreme Ultraviolet	CASI
VFR	Visual Flight Rules	CASI
VFT	Visual Function Test in Space	CASI
VGA	Video Graphics Adaptor	Goddard
VGH	Velocity Gravity Height	CASI
VGP	Virtual Geomagnetic Poles	CASI
VGRF	Variable Gravity Research Facility	CASI
VGT	Variable Geometry Truss	Langley
VHBW	Very High Speed BlackandWhite (film)	CASI
VHDL	VHSIC (Very High Speed Integrated Circuit) Hardware Description Language	CASI
VHDL	Vhsic Hardware Description Language	Langley
VHF	Very High Frequency	CASI
VHOL	Very High Order Language	CASI
VHRR	Very High Resolution Radiometer	CASI
VHRS	Visible and Infrared Imaging Radiometer Suite	Goddard
VHSIC	Very High Speed Integrated Circuit	Goddard
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VI	Vegetation Index	Goddard
Vi	Internal Velocity	CASI
VIAF	Virtual International Authority File	CASI
vib	vibration (Printing)	Langley
VIC	Variable Infiltration Capacity	Goddard
VIC	Vehicle Identification Code	Goddard
VICAR	Video Image Communication and Retrieval	CASI
VICI	Velocity Indicating Coherent Integrator Electronic Countermeasure	CASI
VID	Vehicle Identification	Goddard
VIF	Vertical Integration Facility	Goddard
VIK	Voltage Improvement Kit	Goddard
VIL	Volume Imaging Lidar	CASI
VIM	Visual Inspection Module	CASI
VIMS	Visible and Infrared Mapping Spectrometer	CASI
VIP	Virtual Interface Processor	Goddard
VIPOR	Visual Investigation Program on Orbiter Operations	CASI
VIPR	Video Imaging and Photographic Requirements System	Goddard
VIPS	Video Image Processing System	Langley
VIR	Visible Infrared Radar	CASI
VIRA	Venus International Reference Atmosphere	Goddard
VIRGO	Variability of solar Irradiance and Gravity Oscillations	Goddard
VIRGS	VISSR Image Registration and Gridding System	CASI
VIRS	Visible Infrared Scanner	Goddard
VIRSR	Visible Infrared Scanning Radiometer	Goddard
VIS	Visible (or visibility)	Langley
VIS/UV	Visual/Ultraviolet	CASI
VISAR	Velocity Interferometer System for Any Reflector	CASI
VISAR	Video Image Stabilization And Registration	CASI
VISSR	Visible and Infrared Spin Scan Radiometer on GOES	Langley
VISSR	Visible-Infrared Spin Scan Radiometer (NASA)	Langley
VISSR	Visible Infrared SpinScan Radiometer (GOES B and C)	CASI
VIT	Technical Research Centre of Finland	Goddard
ViTS	Video Teleconferencing System	Goddard
VLA	Verification Loads Analysis	Goddard
VLA	Very Large Array	CASI
VLBA	Very Long Baseline Array	CASI
VLBI	Very Long Baseline Interferometry	CASI
VLF	Very Low Frequency	CASI
VLIW	Very Long Instruction Word	CASI
VLS	Vandenberg Launch and Landing Site	CASI
VLSI	Very Large Scale Integration	CASI
VLSIC	Very Large Scale Integrated Circuit	CASI
VM	Virtual Manufacturing	Langley
VM	Virtual Memory	CASI
VMAG	Vector Magnetometer	Goddard
VMD	Vertical Magnetic Dipole	CASI
VMIC	VME Microsystems International Corporation (company)	Goddard
VML	Vibration Monitor Limiter	Goddard
VMS	Virtual Memory System	Goddard
VMS	Visual Motion Simulator	Langley
VNAV	Vertical Navigation	CASI
VNIR	Visible and Near Infrared	Goddard
VNIR	Visible and Near-Visible Infrared	Langley
VNIR	Visible Near Infrared	CASI
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VOC	Volatile Organic Compounds	Goddard
VOC	Voltage Open Circuit	Goddard
VOCC	VEST Operations Control Center	Goddard
VOI	Venus Orbit Insertion	Goddard
VOIR	Venus Orbiting Imaging Radar	CASI
VOLT	Visual Observation Layout Tool	CASI
VOR	Very High Frequency Omnidirectional Range	CASI
VOR/DME	Very High Frequency Omni-directional Range/Distance Measuring Equipment	CASI
VOTS	Voice Teleconferencing Services	Goddard
VOX	Voice-Operated Transmission	CASI
VP	Verification Plan	Goddard
VP	Visibility Period	Goddard
VPA	Variable Power Amplifier	CASI
VPF	Vertical Processing Facility	Goddard
VPGS	VCL Precision Geolocation System	Goddard
VPHD	Vertical Payload Handling Device	Goddard
VPI&SU	Virginia Polytechnic Institute and State University	Langley
VPPA	Variable Polarity Plasma Arc	CASI
VPU	Video Processing Unit	Goddard
VR	Virtual Recorder	Goddard
VR	Visiting Researcher	Goddard
VRAM	Video Random Access Memory	Goddard
VRCS	Vernier Reaction Control System	Goddard
VRM	Venus Radar Mapper	CASI
VRM	Viscous Remanence Magnetization	CASI
VRML	Virtual Reality Modeling Language	CASI
VRSD	Verification Requirements and Specification Document	Goddard
VRV	Visual Range Visibility	CASI
VS	Verification Specification	Goddard
VSA	Vibrating String Accelerometer	CASI
VSB	Vestigial Sideband	CASI
VSI	Velocity and Steering Indicator	CASI
VSI	VLBI Standard Interface	CASI
VSL	Viscous Shock Layer	Langley
VSMF	Visual Search Microfiche Film (Trademark) (Computer science)	Langley
VSOP	VLBI Space Observatory Program	CASI
VSWR	Voltage Standing Wave Ratio	CASI
VTAM	Virtual Telecommunications Access Method	Langley
VTF	Valve Testing Facility (for HTAH for magnetohydrodynamics power plants)	CASI
VTL	Vertical Tracking Log	Goddard
VTOL	Vertical Takeoff and Landing	CASI
VTPR	Vertical Temperature Profile Radiometer	CASI
VTR	Video Tape Recorder	CASI
VTRE	Vented Tank Resupply Experiment	Langley
VUE	Visible-light/Ultraviolet Experiment	Goddard
VXI	VME bus Extension for Instrumentation	Goddard
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