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  • Re: 3 blade versus 2 blades....

    by » 9 years ago


    Get together with a few fellow owners and buy a Smart Avionics PB3 dynamic prop balancer
    http://www.smartavionics.com/shop.html
    Balancing props is easy with this and at 550 UK pounds it easily pays for itself if a group buy one.

    You can also use it to carry out a full spectrum analysis to determine what is the source of most of the different vibrations you're feeling.

    Dynavibe also do a good balancer but it's around 2000US$ for the base model and around 4000$ for one that has the the full spectrum analysis option equivalent to the Smart Avionics PB3.
    Here's an article by Dynavibe that talks about vibration analysis.
    http://blog.rpxtech.com/dynavibe-blog/eaa-sport-aviation-article

    I have one of these Smart Avionics PB3 balancers and have used it to balance about 50 autogyro rotors over the last 3 years. I've also done some small helicopters and lots of Rotax powered props.

    Mike G

  • Re: 3 blade versus 2 blades....

    by » 9 years ago


    Here's a good video by Dynavibe explaining the basics of frequency analysis.
    https://www.youtube.com/watch?v=cqUuiJZ64Tk&feature=youtu.be

    There's some pretty good stuff on their website and you don't have to buy their equipment to do it.

    Mike G

    Thank you said by: Garrett Wysocki

  • Re: 3 blade versus 2 blades....

    by » 9 years ago


    Thanks Mike for the info. I'm going to talk to our local 912 tech about it.

    Thanks again.

    Andy.

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