V

V/STOL Vertical or Short Take-Off and Landing
VA Heading to an Altitude (ARINC 424 Path Terminator)
VAA Value Added Applications (MADAP)
VAC Alternate Current Voltage
VAFOR Very Advanced Flight Data Processing System Operational Requirement
VAFORIT VAFOR Implementation
VAN Value Added Network
VAP Volumetric Airspace Penetration
VAP Visual Aids Panel
VAPS Virtual Applications Programming Software
VAQ VHF Avionics Qualification
VAR VCS, Ancillaries and Remote control system
VAS Vienna ATCC Data Processing System
VAS Vortex Advisory System
VASI Visual Approach Slope Indicator
VAT Value Added Tax
VAW Vertical Assistance Window (ODID)
VBR Variable Bit Rate
VBX Visual Basic Extensions
VC Virtual Circuit *
VC Virtual Classroom
VCCS Voice Communication and Control System
VCI Voice Change Instruction, a message of the ACM service
VCO Voltage Controlled Oscillator *