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Thread: 70cc twin exhaust

  1. #121
    Senior Member JDaly's Avatar
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    Re: 70cc twin exhaust

    Congrats Rick!

    So do you have access to a DB Meter to put some numbers where you say very quiet?
    Because everyone has their own opinion of what quiet is but Db’s don’t open it to interpretation!
    Windy You Ask? Well I have White Caps on my coffee, you be the Judge!

  2. #122
    Senior Member -Rick-'s Avatar
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    Re: 70cc twin exhaust

    Yes Jim, I have a DB meter. How do you want me to read it? How far away etc. I fly from a grass field and no way will this plane fit on a stand. Let me know how...

  3. #123
    Senior Member -Rick-'s Avatar
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    Re: 70cc twin exhaust

    101 bd about 7 feet away wide open throttle on grass.

  4. #124
    Senior Member JDaly's Avatar
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    Re: 70cc twin exhaust

    Quote Originally Posted by -Rick- View Post
    Yes Jim, I have a DB meter. How do you want me to read it? How far away etc. I fly from a grass field and no way will this plane fit on a stand. Let me know how...
    Quote Originally Posted by -Rick- View Post
    101 bd about 7 feet away wide open throttle on grass.
    Hi Rick,

    Sorry for not getting back to you before you were able to make test.


    At my club, the Oakville Milton Flying Club the standard there is 98db @ 3m. dB meter is 90 degrees to prop and meter is 12" off the ground.

  5. #125
    Senior Member -Rick-'s Avatar
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    Re: 70cc twin exhaust

    Quote Originally Posted by JDaly View Post
    Hi Rick,

    Sorry for not getting back to you before you were able to make test.


    At my club, the Oakville Milton Flying Club the standard there is 98db @ 3m. dB meter is 90 degrees to prop and meter is 12" off the ground.
    Okay I will do that when I get my new landing gear later this week. Had a dead stick 4 feet off the ground while dragging the plane in. Some how got crap in the carb.

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