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Multirotor Systems 101

This is DC DUG's "getting started" class for the world of multirotors, and is intended as a prelude to the DC DUG build workshop to:

- Help you decide what you need to purchase if you want to build your own multirotor
- Understand the various system components of a multirotor and the basic tradeoffs and limitations involved in each part of the system --- Motors, Propellers, ESCs, Radio Transmitters, Telemetry, FPV.
- Get an idea of what the "state of the art" is
- Learn where to get help
- Meet up with other DC Drone User Group Members and make connections

The scope of this 101 session is to cover the technology basics, and does not at all cover the breadth or depth of topics involved in the world of unmanned aerial systems; such as flight procedures, physics, electrical engineering, aeronautical engineering, control theory, software programming, piloting, ethics and law, etc.

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  • A former member
    A former member

    Excellent orientation for newbies; very informative and easy to go from zero knowledge to feeling fairly comfortable. Thanks!

    November 13, 2013

  • Franck

    Thanks for the upload. I enjoyed my first meet, great people, instruction and topics. Hope to make it to more of these. My build starts tonight!

    November 11, 2013

  • Christopher V.

    1 · November 11, 2013

  • D. C.

    Chris, the next time you present a MRS 101 (or sooner), could you include a primer on batteries? Things like safety, weight, how to choose, sources, quality, etc., could be added in addition to the information you gave us in yesterday's presentation. I'm particularly interested in knowing more about the safety issues related to LiPo batteries.

    November 10, 2013

    • Christopher V.

      5.) If a lipo is on fire, treat it like a grease fire e.g. don't use water. Use dry chemical fire extinguisher, bucket of sand, etc. 6.) If a lipo is physically damage e.g. from a crash, then chances are that the battery also will not work as well as it used to. Mark the batteries as compromised and get brand new ones. In most cases, a battery costs only $30 but using a compromised battery can be dangerous, cause a crash, cause a fire, and cost you much more. ....... and 7.) yes, lipos really are that volatile.

      November 10, 2013

    • D. C.

      Very helpful and critical info. Thanks much.

      November 11, 2013

  • D. C.

    Another outstanding presentation, Christopher. I go so wrapped up in your presentation and the multitude of useful questions that I forgot to ask the one question I came with, which is: what is the be best battery/power connector to standardize on? I notice the various OEM and aftermarket batteries come with various connectors, and the various battery chargers seem to come with a variety also. It's dead easy to change out connectors, but what's the best type to standardize on?

    Thanks much.

    November 9, 2013

    • Christopher V.

      The cheapest are Dean's connectors. They're OK but stick with one of the above options IMO.

      November 10, 2013

    • D. C.

      Exactly what I was looking for--thanks again, Chris.

      November 11, 2013

  • A former member
    A former member

    In case you didn't get to go, it was in a smallish room with multirotors on just about every table. Rather like walking into a candy store where everyone wanted to tell you about their candy, invited you to examine it and answer your questions.

    Eventually we did get around to starting and the talk was very good! As promised it was aimed at people who may or may not have ever flown before and had enough meaty content for both groups.

    Though it is my second event to attend with the group, it was again open and welcomed audience participation - many of whom were long time RC pilots (and some real world pilots as well I'd guess from discussion).

    If you missed it, you missed an excellent talk. Even with his great preparation and slide deck that had a little of everything, as you can see from the comments people always want more. :-p

    Me, I'm just waiting on the slides - my handwritten notes are a little unreadable in spots, too excited. Can't wait for the next event!

    November 10, 2013

  • Roger F.

    Really informative. Presentation was excellent.

    November 10, 2013

  • Charles W.

    Outstanding! I learned a lot in a short period of time. Christopher Vo is a great instructor. Besides all the good information, I appreciated his emphasis on safety.

    November 9, 2013

  • Mike M.

    How long is this event? thanks.

    November 7, 2013

  • Christopher V.

    I found a place to host the event, please see the updated event on Meetup.com. It will be at the Nguyen Engineering Building on the GMU campus, very close to where the conference and the build party were held.

    1 · November 7, 2013

  • Franck

    Looking forward to the meet and learning a lot.

    November 5, 2013

  • Ian

    Hi folks. Just found your group. I am at the start of a build, loosely based on the Scout UAV. Got most of the bits and I am getting ready to put it all together. Schedule allowing I hope to meet up with you all very soon.

    November 5, 2013

  • Alex R.

    How soon do you anticipate starting another group build cycle?

    November 3, 2013

  • Charles W.

    I plan to be there.

    October 29, 2013

  • Rich

    Anyone know a good place to park near the building and, preferably, free?

    October 29, 2013

    • Christopher V.

      Lot A should be free on weekends. Shenendoah is paid parking $3/hr but it's covered and 2x closer to the building.

      October 29, 2013

    • Mike M.

      Parking lot A worked quite well for me at the conference last weekend - can't beat the price.

      October 29, 2013

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