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ACU = Acronyms Commonly Used

Discussion in 'General Discussion' started by LuvMyTJ, Nov 10, 2015.

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  1. LuvMyTJ

    LuvMyTJ Administrator
    Staff Member

    Sep 10, 2015
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    Here is a list of terms used in the RC hobby. I gathered these from too many post to credit people, but you know who you are.

    Smash that 'like' button if this helped you! ;)

    *Please message me to add any relevant ones I missed.

    AGL = Above Ground Level

    AMA = Academy of Model Aeronautics

    AMSL = Above Mean Sea Level

    ARTF or ARF = Almost ready to fly

    ASL = Above Sea Level

    ATTI = Attitude

    AUW = All Up Weight

    BNF = Bind n Fly (transmitter)

    BTU= Blue Tooth Unit

    BLOS = Beyond line of sight

    BVLOS = Beyond visual line of sight

    Cal= Calibration

    CAA = Civil Aviation Authority (UK Regulator)

    CAAS = Civil Aviation Authority of Singapore (Singapore Regulator)

    CL = Course Lock

    COA = Certificate of Waiver or Authorization

    CSC combination stick command

    ESC= electronic speed controller

    EVLOS = extended visual line of sight

    FAA = Federal Aviation Administration (US Regulator)

    FPV = first person view

    FS = Failsafe

    GHz = Gigahertz

    GPS = Global Positioning System

    HL = Home Lock

    IR = Internal Resistance

    IOC = Intelligent Orientation Control

    IMU - Inertial Measurement Unit

    LHCP = Left Hand Circular Polorized

    LiPo = Lithium-Polymer (battery)

    LOS = Line of sight

    MC = Main controller

    MHz = Megahertz

    MSL = Mean Sea Level

    Nicad = Nickle Cadmium (battery)

    NOTAM = Notice to Airmen

    OP = Original Poster (Author)

    POI = Point of Interest

    RHCP = Right Hand Circular Polorized

    RTF = Ready to fly

    RTH = Return To Home

    RTM = Read The Manual

    Rx = Receiver

    SOC = State Of Charge

    SUA = Small Unmanned Aircraft (What the CAA call what we fly)

    SUSA = Small Unmanned Surveillance Aircaft (What the CAA call what we fly)

    sUAS = Small unmanned aircraft system (what the FAA calls what we fly)

    Tx = Transmitter

    UAV = Unmanned aerial vehicle

    VLOS = Visual line of sight

    VRS = Vortex Ring State

    VTx - Video Transmitter

    VRx - Video Receiver

    VPS = Visual Positioning System
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