Welcome to PhantomPilots.com

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

Stress Fractures

Discussion in 'Pro/Adv Discussion' started by DirtyBird, Jun 5, 2016.

  1. DirtyBird

    Joined:
    Feb 16, 2016
    Messages:
    2
    Likes Received:
    0
    Does anybody know if prop guards plays a role in either causing or preventing the Notorious stress fractures


    Sent from my iPhone using PhantomPilots mobile app
     
  2. teccer

    Joined:
    Jun 17, 2015
    Messages:
    412
    Likes Received:
    52
    Location:
    SW UK
    I've been flying for 2 years now with prop guards and no cracks.
     
  3. Jesse James

    Joined:
    Apr 27, 2016
    Messages:
    236
    Likes Received:
    45
    Anythings possible


    Sent from my iPhone using PhantomPilots mobile app
     
  4. teccer

    Joined:
    Jun 17, 2015
    Messages:
    412
    Likes Received:
    52
    Location:
    SW UK
  5. Phill2

    Joined:
    Dec 4, 2015
    Messages:
    274
    Likes Received:
    46
    I'd like to know too
    Been thinking about putting a set on for the same reason
     
  6. AlexSP

    Joined:
    Oct 30, 2015
    Messages:
    295
    Likes Received:
    237
    After reading lots of threads and opinions and also after fixing a few cracked shells myself (for friends, mine never cracked and my oldest P3 has almost 400 flights and even a few nicks on the tips from rough landings but no cracks), my opinion is that it makes no difference at all. Won't prevent nor cause cracks, because I have a firm belief that it's related to the plastic mix and/or curing process, thus a QC related issue. It's a lottery indeed, but I suspect only a small part of P3s suffer cracks.
     
    Oso and N017RW like this.
  7. Oso

    Oso

    Joined:
    May 19, 2015
    Messages:
    2,526
    Likes Received:
    1,477
    Location:
    Sacramento CA
    I agree with you about stress cracks, as do most (all?) of the forum staff.

    I dont think prop guards or those strong arm things prevent cracks at all, but I also dont think they do anything to cause cracks.

    What I hear most about prop guards are that they change aerodynamics too much, and people seem to often find a way to use the wrong sized screws when installing them and damage their motors.
     
    #7 Oso, Jun 7, 2016
    Last edited: Jun 7, 2016
  8. Design-engine

    Joined:
    Mar 15, 2016
    Messages:
    61
    Likes Received:
    10
    Location:
    Chicago
    I just purchased prop guards.... how notable are the flight aerodynamic characteristics with prop guards?
     
  9. AlexSP

    Joined:
    Oct 30, 2015
    Messages:
    295
    Likes Received:
    237
    Indeed the guards can interfere in some situations, and increase the size and bulk of the P3 as well. I find the P3 a lot more stable and reliable without those so I´ve never used prop guards in any of my quads.
     
    #9 AlexSP, Jun 7, 2016
    Last edited: Jun 7, 2016
    Oso likes this.
  10. Bagpuss

    Joined:
    May 12, 2015
    Messages:
    18
    Likes Received:
    0
    My Phantom 3 Pro was one of the first to be delivered in the UK, and I immediately fitted a set of Bestem Aerial removable prop guards before ever flying. I thought they would help in avoiding stress cracks, but after 11 months cracks were visible around two of the motors. DJI replaced the shell under warranty, and I have subsequently fitted these:

    Extended Guard Mounting Base for DJI Phantom 3 (All models)

    Bestem claim that these extended mounting bases will help prevent stress cracks, but only time will tell.
     
  11. Phill2

    Joined:
    Dec 4, 2015
    Messages:
    274
    Likes Received:
    46
    They look very similar to the mounts for the clip on guards that I have.
    I was thinking of just fitting the mounts to beef up the shell by spreading the load on the screw holes and not using the guards.