Welcome to PhantomPilots.com

Sign up for a weekly email of the latest drone news & information

prop detachment during flight

Discussion in 'General Discussion' started by Molarman, Apr 4, 2015.

  1. Molarman

    Joined:
    Apr 4, 2015
    Messages:
    10
    Likes Received:
    0
    image.jpg Hi
    I'm new to this forum. Had my phantom 2 for a few months and was very confident with it until the prop detached suddenly whilst flying. It plummeted like a stone but fortunately survived with only minor damage to Zenmuse. I was used to just spinning the props on before flight thinking that the self tightening action would keep things ok. Obviously not! It was flying smoothly for a while before it happened and a captured frame from the Gopro footage clearly shows it flying off. Props were genuine DJI and well balanced. Post crash examination confirm prop and motor spindle sound.
    Anyone out there had a similar experience?
     
  2. IflyinWY

    Joined:
    Sep 12, 2014
    Messages:
    3,470
    Likes Received:
    939
    Location:
    Where the deer and the antelope play
    Yep, there are similar experiences, and we've got the finest minds working on finding out why. I'm trying to keep from interrupting their thoughts, but here is where they are:
    http://www.phantompilots.com/threads/urgent-tighten-your-props-with-wrench.36945/

    This is how they got started on that thread:
    http://www.phantompilots.com/threads/wth-just-happened-props-just-flew-off.36530/

    So there you go.

    Where are you? A signature with some of your information works well when you want folks to know about your bird. You can also add a location to your profile so we get some idea of where you are.

    Welcome to the forum Molarman, wish you showed up with good news instead of this.
    Do you fix teeth? Oh, me be funny.
     
  3. robsquad

    Joined:
    Dec 4, 2014
    Messages:
    962
    Likes Received:
    422
    Location:
    Wolverhampton, UK
    is that a full prop or part ?
     
  4. Molarman

    Joined:
    Apr 4, 2015
    Messages:
    10
    Likes Received:
    0
    Good to know it's not just me! Gonna tighten with w
     
  5. Molarman

    Joined:
    Apr 4, 2015
    Messages:
    10
    Likes Received:
    0
    Interesting that there is a known problem. Will be using a wrench from now on and tighten them up before I fly as I normally carry it around props off.
    As to your other point, yes I did mess with teeth. I'm a recently retired Dental surgeon so have more time on my hands to mess around. Off touring in France soon in a motorhome so hope to get some good flying and filming.
     
  6. Molarman

    Joined:
    Apr 4, 2015
    Messages:
    10
    Likes Received:
    0
     
  7. Molarman

    Joined:
    Apr 4, 2015
    Messages:
    10
    Likes Received:
    0
    Full prop. Just blurred due to speed.
     
  8. MikeTess

    Joined:
    Dec 30, 2014
    Messages:
    146
    Likes Received:
    64
    Location:
    Long Island, NY
    PV+ v3: I use blue loctite on my threads and wrench tighten snug (not too tight). Props come off only for replacement. Yeah, they stay on when connected to the Assistant app. Take precaution.
     
  9. edonovanl

    Joined:
    Feb 24, 2015
    Messages:
    630
    Likes Received:
    140
    Location:
    Treasure Island, FL
    Mike, my apologies if you are already on this, but you might consider binding your landing gear to a piece of wood or something when you are connected to the Assistant. I use a 12x12 piece of plywood and four wire staples. No problems yet but I don't want to get into a tussle with a set of spinning props!
     
    IflyinWY likes this.
  10. PsychopathRC

    Joined:
    Oct 18, 2014
    Messages:
    270
    Likes Received:
    3
    Location:
    London, England
    Sorry to hear of your loss. I had a prop fly off my FC40 once. But it was already on the ground. It's like the change in revs on the motors caused it. Maybe the motors can slow down so fast they loosen the props?
     
  11. IflyinWY

    Joined:
    Sep 12, 2014
    Messages:
    3,470
    Likes Received:
    939
    Location:
    Where the deer and the antelope play
    That's a current discussion among the braniacs in the first link I posted above. I check the thread every now and then hoping it will be translated to English. I try not to interrupt their train of thought. The most recent translation was by:
    http://www.phantompilots.com/members/spiritskeeper.21333/, Thursday, April 2.
    Well worth the read, if you like your Phantom.

    For those of you who haven't used the wrench yet, it slips down over the motor.
    It does not slide on like wrenches in your tool box. ;)
     
  12. Incisors

    Joined:
    Apr 14, 2015
    Messages:
    5
    Likes Received:
    0
    I watched my prop or piece of prop fly off today at 250 ft. Crazy. Thing dropped immediately. Scared the crap out of me.
    Apparently came down on my neighbors patio roof.
    Of course this was the only section of my flight that even came close to houses. I was just guiding it back from the golf course I live on.
    Looks like I'm going to need a big ladder and an apology for not meeting my neighbor before this.
    Never had any problems before this with flight or control. Heard it hit hard, but was obstructed by a hedge. I imagine it is in many pieces.
    I am a new owner, but have at least 8 hours of flying time.
     
  13. Larry L

    Joined:
    Oct 17, 2014
    Messages:
    671
    Likes Received:
    39
    Location:
    Copperas Cove, Texas
    good luck, Hope neighbors are pretty cool & don't claim you damaged roof. ( hopefully you really didn't)
     
  14. Milly

    Joined:
    Dec 25, 2014
    Messages:
    122
    Likes Received:
    37
    Location:
    Wick, Caithness, Highlands of Scotland
    Thanks for bringing this up, up to now I have only just spun the props on with no tightening up after. I think I will now review this practise.
     
  15. Mako79

    Joined:
    May 16, 2014
    Messages:
    3,416
    Likes Received:
    568
    Location:
    Sydney Australia
    What model is your P2? and what firmware you running?
     
  16. Incisors

    Joined:
    Apr 14, 2015
    Messages:
    5
    Likes Received:
    0
    I had a P2 vision +. Neighbors not home, and I need a big ladder, or another P2 to verify location:). I know it's up there:(
    Firmware updated yesterday to most recent update.
     
  17. Molarman

    Joined:
    Apr 4, 2015
    Messages:
    10
    Likes Received:
    0
    Your recent post has eventually solved the mystery of why my prop detached during flight. We need to change ?..........
    YES our phantom pilots nicknames, anything that's not associated with teeth. That's the common link.lol.
     
  18. IflyinWY

    Joined:
    Sep 12, 2014
    Messages:
    3,470
    Likes Received:
    939
    Location:
    Where the deer and the antelope play
    You two are no where near alone on this issue.
    Lots of birds are falling out of the sky because of missing props.

    I hope everyone is getting the picture... TIGHTEN THE PROPS WITH THE WRENCH.

    Speaking of pictures, here's something for "The Teeth Guys":
    http://avatarmaker.net/
    I'll bet you two can make some very cool Avatars.
     
  19. Incisors

    Joined:
    Apr 14, 2015
    Messages:
    5
    Likes Received:
    0
    Agree molarman. Evidently the dental professions love is being reflected by DJI