V
VAC Volts of Alternative Current
VACF Variable Amplitude Corrosion Fatigue of High Strength Steels UK/Norway research project
VAM  Vynil Acetate Monomer 
VAR Voltage-Ampere-Reactive
VCE  Vapour Cloud Explosion 
VCG Vertical position of the Center of Gravity (ship)
VDC Volts of Direct Current
VDOP Vertical Dilution Of Precision
VDU Visual Display Unit
VERISTAR BV software for hull condition analysis
VFD Variable Frequency Drive 
VFI Voltage and Frequency Independent
VHF  Very High Frequency
VHO    Volunteering Hydrographic Office (IHO) 
VHR Very High Resolution
VHS Video Home System
VIV Vortex Induced Vibration
VLA  Vertically Loaded Anchor
VLCC  Very Large Crude Carrier (over 200,000 tonnes)
VLS  Vertical Lay System
VLSF Very Large Floating Structure 
VLV Very Low Voltage ( = french TBT for Très Basse Tension) i.e. U<=50 AC or U<=120 DC
VNG Vehicular Natural Gas
VOC Volatile Organic Compound
VOR VHF Omnidirectional Range
VQS  Vendor Quality Status 
VRP Vessel Response Plan
VRU Vertical Reference Unit
Vapour Recovery Unit
VSD Variable Speed Drive
VST  Vicat Softening Temperature
VSWR  Voltage Standing Wave Ratio
VX (sealing profile/gasket type)