Rivet size and spacing

Discussion in 'Sheet Metal' started by birdus, Oct 1, 2019.

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  1. Oct 1, 2019 #1

    birdus

    birdus

    birdus

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    I'm going to patch up some fuselage damage. I'm planning on using a 3 1/8" instrument panel punch to eliminate the damaged area (that's just barely big enough, just about perfect), then using a backer, along with plug to fill that hole for aesthetic reasons. To add a backer to non-structural, .032" aluminum, what rivet size and spacing is appropriate?

    Thanks,
    Jay
     
    Last edited: Oct 1, 2019
  2. Oct 1, 2019 #2

    proppastie

    proppastie

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    non structural flat head,???? 3/32 you can c'sink .032,...normal spacing 8-10 diameter of the rivet.
     
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  3. Oct 1, 2019 #3

    TerryM76

    TerryM76

    TerryM76

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    Look at designation "G" in the attached page from AC43.13-1B. Since it is non-structural you can use the 3/32" rivets as proppastie is suggesting and "G" will give you a suitable spacing.
     

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  4. Oct 1, 2019 #4

    birdus

    birdus

    birdus

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    Thanks, guys. That's about what I was thinking, but wasn't sure.
     
  5. Oct 7, 2019 #5

    pfarber

    pfarber

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    As posted above, you REALLY need to look at the sheetmetal section of AC 43.13 for proper practices for repairs.

    I watched a video of a guy assembling an RV-10 kit and he cut an access panel, with 90deg corners. LOL NO. Repairs and rivet spacing etc is all in the 43-13.

    Read it, learn it, live it.
     
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  6. Oct 7, 2019 #6

    proppastie

    proppastie

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    further reading.....whereas backer/filler? middle of the patch is non-structural....the patch may not be if it is stress-skin metal aircraft....43-13-1b is the correct reference.
     

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