Warbird Information Exchange

Hello Folks:

Anyone know how to put drain hole fasteners in on fabric covered surfaces? Anyone have nomenclature for this?

Thanks,

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"No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth!" R.R.

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Its called a grommet, and they are usually doped on to the clear coats under the pigmented coats.

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If God had wanted man to fly behind a flat motor, Pratt Whitney would've built one.

Glue the grommets in like DZ says. There are two types, plain round, and sea plane grommets that have a reverse scoop on them. After you complete the flying surface you burn through the fabric (If man made) with a soldering iron.

Hello Folks:

That's good to know, but what's used when you want to go through 1 layer of fabric and 1 layer of sheet metal? Thanks a lot.

_________________
"No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth!" R.R.

Welcome to the USSA! One Nanny State Under the Messiah, Indivisible with Tyranny, Higher Taxes, Socialism, Radical Environmentalism and a Loss of Income for all. Boy I'm proud to be a part of the USSA, what can I do to raise taxes, oh boy oh boy!

Drill bit, just go slow through the fabric where the gromet is.

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Long Live the N3N-3 "The Last US Military Bi-Plane" 1940-1959
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Hi Jeff:

No, that's not it. It's looks like a rivnut that fastens the farbic to the metal. I was just wondering it there is something else used that looks a little like a rivnut.

Thanks

_________________
"No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth!" R.R.

Welcome to the USSA! One Nanny State Under the Messiah, Indivisible with Tyranny, Higher Taxes, Socialism, Radical Environmentalism and a Loss of Income for all. Boy I'm proud to be a part of the USSA, what can I do to raise taxes, oh boy oh boy!

This is on a T-6? Do you have a photo of the area?

Move the grommet away from the metal (or just glue another on)

Can't be done. Basicly it's similar to a rivnut.

_________________
"No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth!" R.R.

Welcome to the USSA! One Nanny State Under the Messiah, Indivisible with Tyranny, Higher Taxes, Socialism, Radical Environmentalism and a Loss of Income for all. Boy I'm proud to be a part of the USSA, what can I do to raise taxes, oh boy oh boy!

On a T-6? Doesn't sound familar, like BDK says send photo and prove us wrong.

Sorry too lazy to take a picture..I don't want to prove anything, just needed an answer to that. I think I'll call my hardware supplier, and see if he knows.

Thanks!

_________________
"No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth!" R.R.

Welcome to the USSA! One Nanny State Under the Messiah, Indivisible with Tyranny, Higher Taxes, Socialism, Radical Environmentalism and a Loss of Income for all. Boy I'm proud to be a part of the USSA, what can I do to raise taxes, oh boy oh boy!

For the Acceptable Method, consult the AC 43.13-1B; Section 2-14 "Inspection Rings and Drain Grommets". Found on Pages 2-22 and 2-23.

If you don't have the text, it can be downloaded from the FAA website for free. If downloading just the chapter needed, it would be "Chapter Two- Fabric Covering."

Also, if you are using Poly Fiber, you can use poly tack to put the grommet up and a small soldering iron to burn a hole through the fabric. If the fabric is on sheet metal, you may not even need a grommet. consult the poly-fiber book.

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“Beer is proof that God loves us and wants us to be happy.”

Benjamin Franklin, American Statesman, Scientist, Philosopher

Suggest you not use grommets. Just use soldering iron to make hole. Over time, the grommets come unstuck. Grommet are a carry over from the cotton days.

I hate to say it, but all the responses miss the mark. The fabric is over metal. The metal is enclosed, and so the drain hole is similar to a rivnut and goes through the fabric and metal. All I was asking is if anyone knows excactly the type of fastener/drain reinforcement used.

_________________
"No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth!" R.R.

Welcome to the USSA! One Nanny State Under the Messiah, Indivisible with Tyranny, Higher Taxes, Socialism, Radical Environmentalism and a Loss of Income for all. Boy I'm proud to be a part of the USSA, what can I do to raise taxes, oh boy oh boy!