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The Ultimate RC Glossary Thread!

Discussion in 'Newbie Q & A' started by BrotherBloat, Jun 29, 2011.

  1. BrotherBloat

    BrotherBloat <b> UK Correspondent</b>
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    Please bear with me as I develop the sections and feel free to reply with your ideas.

    I was just posting something and I caught myself constantly using acronyms for various RC terms that I found obvious, but I knew straight away, that some months or years ago, I'd be completely clueless as to what was being written!

    Therefore, I searched the forum for a glossary/dictionary/acronym translator or anything similar, but failed to find anything of the sort. I figured - I must make one - an OPEN one, where everyone can throw in their TLAs (three-letter acronyms), slang, definitions and other inside terms that we all share in the RC hobby.

    I will take care of this thread as often as I can and push everything into the OP (original post) in several categories, to make it legible.

    Please note that all technical explanations are laid out in lay-man's terms and are not text-book definitions. You can find those on Wikipedia or anywhere else! This glossary's purpose is to explain it equally 'well-enough' to the young RC enthusiast as any non-technical adult, wanting to work out what innards to put into their RC vehicle!

    Please use your browser's search function (usually Ctrl+F) on this page if you're looking for anything in particular.

    Forum/chat slang & acronyms
    Some of these may seem obvious to the majority, but I thought it's worth adding for those, who are new to online forums.

    AFAIK - As far as I know
    AKA - Also known as
    BA - Bad-Ass!
    BBL - Be back later
    BRB - Be right back
    BS - Bulls$$t (use in jest only, plz)
    G2G - Good 2 go, gotta go
    GTG - Group Trail Gathering (thx Medic), Good to go, gotta go, get-together, gas-turbine generator
    IC - Internal combustion / I see / In-character
    IIRC - If I recall correctly
    IMHO - In My Humble Opinion
    ITT - In This Thread
    Mod - Moderator
    ofc - Of course
    OMG - Oh My God
    OP - Original Post
    TTYL - Talk to you later
    TYVM - Thank you very much

    General Terms

    ARF - Almost ready to fly (not: 'All ready to fly'!)
    ARR - Almost ready to run
    BNF - Bind and fly (requires a compatible Tx only)
    FPV - First Person Video/View. Usually refering to controling an RC craft remotely with the aid of a live video down-link
    lbf·ft - pound-foot, unit of torque. Equivalent to a pound of force acting at a lever 1 ft away from the pivot point. 1 lbf·ft = 1.3558180 Nm
    km/h - kilometres per hour, unit of speed
    MPH - miles per hour, approximately 1.6 km/h, an Imperial unit of speed
    Nm - newton metre, unit of torque. 1 newton metre = 0.7375621 lbf·ft
    PnP - Plug'n'Play (requires TX, Rx and battery)
    PSU - Power Supply Unit
    RC - Radio-controlled, remote-controlled
    Rx-Ready - receiver ready kit (requires Tx, Rx and often battery)
    RTF - Ready to fly (everything in the box)
    RTR - ready to run (everything in the box)
    RPM - Revolutions Per Minute - how quickly it rotates
    Servo - a mechanism used to actuate a moving part in a machine. Consists of a small electronically controlled electric motor, surrounded by a set of gears terminated with a pivoting actuating arm. In RC, most commonly used for various forms of steering the vehicle
    torque - AKA moment - tendency of a force to rotate an object around its axis. Commonly found as a servo or engine parameter. The more torque, the stronger the servo.
    Tx - transmitter
    WOT - wide-open throttle

    Electric RC

    A - Amp/ampere - a measure of electrical current. 1A = 1W / 1V
    Ah - ampere-hour - a unit of energy, commonly used as the capacity of a battery. 1Ah = 1,000 mAh.
    C - battery charging rate. 1C corresponds to a complete charge/discharge of the whole battery capacity in 1 hour. Therefore, in theory, you can discharge a 60C battery completely in 1 minute, by drawing 60 times more amps than required to discharge it in 1 hour.
    ESC - Electronic Speed Controller - one of four key systems in any electric RC. It controls the motor's RPM (see General Terms)
    Kv - Voltage constant K - defines the number of RPM per Volt, that the motor will try to achieve at full throttle with no load on it. In practice, this means that the motor will be turning faster, the more voltage (battery cells in series) you apply to it. With motors of comparable sizes, the one with higher Kv will give you more top speed, whereas the lower Kv one will give you more torque for those rough mud patches. Similarly, in planes, the lower Kv motor will allow a larger prop to be swung, giving more static thrust and higher Kv will allow for super-fast short props or EDFs. Note that, contrary to IC engines, one cannot under-prop / under-gear an electric motor - it will never explode from too little-load causing too much RPM, because of this Kv constant.
    LiFe - LiFePO4 - Lithium Ferrite (Lithium Iron Phosphate) battery.
    LiPo - Lithium Polymer battery: a high energy concentration, rechargeable battery.
    NiCd - Nickel-cadmium rechargeable battery.
    NiMH - Nickel-Metal Hydride rechargeable battery.
    V - Volt - unit of electromotive force (voltage). 1V = 1W / 1A
    W - Watt - unit of power (energy conversion). 1W = 1V * 1A
    Wh - Watt-hour - unit of energy, sometimes used to define the amount of energy stored in batteries, in place of mAh or Ah.

    Internal combustion RC
    Glow fuel - usually a mixture of methanol and nitroethane, suspended in castor or synthetic oil; used to power some internal combustion engines
    Glow plug - a device similar to a spark plug, used to ignite glow fuel at each stroke of the engine piston
    Nitro - nitromethane, used as high performance engine and RC engine fuel
    Kerosene/kerosine/paraffin - highly-flammable hydrocarbon liquid, often used to power jet and some rocket engines.
     
    #1 BrotherBloat, Jun 29, 2011
    Last edited: Aug 25, 2011
  2. BrotherBloat

    BrotherBloat <b> UK Correspondent</b>
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    reserved for more body here
     
  3. BrotherBloat

    BrotherBloat <b> UK Correspondent</b>
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    reserved for more body here some m ore...
     
  4. nick_alphonse

    nick_alphonse New Member

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    i think this is a good list of word to know.

    this one is new for me :D
    AFAIK - As Far As I Know
    BA - Bad-Ass!
    BS - Bulls$$t (use in jest only, plz)

    thx brotherbload
     
  5. Erock

    Erock Studio Forums Elite
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    I love the list! Sticky?
     
  6. BrotherBloat

    BrotherBloat <b> UK Correspondent</b>
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    Thanks! I'm planning to sticky that once it takes a little more shape, indeed :)

    ---
    Sent from HTC Desire via Tapatalk
     
  7. Danboard

    Danboard Friendly ENFORCER
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    Great work, BrotherBloat! Such a wealth of information! Keep 'em coming!
     
  8. Guam_RC

    Guam_RC Studio Forums Elite
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    Very helpful! Thanks for posting :)
     
  9. fordguy8790

    fordguy8790 Studio Forums Elite
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    Maybe a section explaining drag brake and brushed motor turns? Good thread!
     
  10. BrotherBloat

    BrotherBloat <b> UK Correspondent</b>
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    Good idea! I'll try to add that today!
    :)
     
  11. Grizzlyman98

    Grizzlyman98 Studio Forums Elite
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    Awesome this will indeed be helpful
     
  12. Greenie

    Greenie VillAge iDioT
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    will be a handy thread for sure.

    one for ya.
    MOD - Moderator/modified
     
  13. Monkeypiarat

    Monkeypiarat Worlds formost authority on my own opinion
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    could you invent one for me.......PPOP......POST PICTURE OF PROBLEM. thanks
     

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