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Reproducing Sound-Proofing

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  • Member since
    November 2005
Reproducing Sound-Proofing
Posted by Anonymous on Thursday, August 12, 2004 10:53 PM
Okay, so i'm sitting here working on the 'hook', when a sudden brain-storming idea hit me.

The biggest thing i dreaded about detailing my interior, was how on earth could i accurately replicate sound-proofing? With as much sound-proofing as there is inside this aircraft, i didn't want to go the route of having to scribe criss-cross patterns into separate pieces of styrene, and i couldn't find any cloth of any nature that would even come close.

The answer was as simple as looking out my window. My idea is to use window screen. I figured window screen is very pliable and would curve like i need it too. In addition, i could glue it to some super thin styrene and cover it with toilet paper that has been wetted with water and white glue. The "cloth" would cling just enough so that the criss-cross pattern would come through, and with a little dry-brushing, would really stand out.

Mind you i have yet to try this, so if anyone else wants to give this idea a try, please let me/us know what the results were. Include pics if you can.

Anywho, just thought i'd share.

Oh! Looking at the scale of the window screen, i'm thinking this would be applicable to 1/48 scale and above.
  • Member since
    November 2005
Posted by Anonymous on Thursday, August 12, 2004 11:00 PM
Even better, have a look at food packaging. Cakes, cookies etc. The stuff that gets thrown away often has an embossed pattern on it, sometimes it's a scale quilt effect.
Also pill's, the ones on a vac formed sheet that you 'pop' out. i'm taking some now that have a 1/72nd size quilt effect, I only noticed the other day too!
  • Member since
    November 2005
Posted by Anonymous on Thursday, August 12, 2004 11:03 PM
Never thought of that either. I'll have to look into that as well and see how it measures up.

Thanks!
  • Member since
    July 2003
  • From: Piedmont Triad, NC (USA)
Posted by oldhooker on Thursday, August 12, 2004 11:44 PM
Jeff,

Here's some material I used during one of my "Army Helicopter" builds. Although it's very basic, it creates very realistic sound proofing material that's pliable and takes paint well. You can use an existing soundproofing pattern to PRESS the shape onto the paper or foil, or, you can use a ruler and your fingernail to scribe the patterns.



Take care,
Frank

  • Member since
    January 2003
  • From: Upper left side of the lower Penninsula of Mich
Posted by dkmacin on Friday, August 13, 2004 5:36 AM
Go to the store and look at the heavier foil used to seal up big cans of Planter's Nuts.
They usually have a pattern to them. Might be a possibility. Just don't take the foil off without buying the nuts, managers get cranky when you do that.
Did all Sound Proofing have the quilted pattern? I recall some just having a smooth surface and others just the "sofa look" with buttons. . .I am not kidding.

Don
I know it's only rock and roll, but I like it.
  • Member since
    November 2005
Posted by Anonymous on Friday, August 13, 2004 2:20 PM
I bought a product awhile back,(don't remember the manufacturer) that was made for the scale auto detailers. It is used to replicate hood sound-proofing materials.
  • Member since
    July 2003
  • From: Piedmont Triad, NC (USA)
Posted by oldhooker on Friday, August 13, 2004 3:03 PM
QUOTE: Originally posted by dkmacin


Did all Sound Proofing have the quilted pattern? I recall some just having a smooth surface and others just the "sofa look" with buttons. . .I am not kidding.


Hmmm.... it seems I recall seeing a CH-54A one time at Rucker (way back in the day), with non-quilted sound proofing, and I've seen it in a couple CV-2's, but all the Chinook's I've ever seen have the diamond quilted pattern throughout.

Frank

  • Member since
    April 2004
  • From: Georgia
Posted by Screaminhelo on Monday, August 16, 2004 7:38 AM
Did all Sound Proofing have the quilted pattern? I recall some just having a smooth surface and others just the "sofa look" with buttons. . .I am not kidding.[/qoute]

All -60's have smooth sound proofing and -47's mostly do now, although you sometimes see some with a couple of quilts hanging up. I think that the sound proofing started to change in the mid 70's so check references for Hueys and -47's. Can somebody confirm this?

Mac

I Didn't do it!!!

  • Member since
    November 2005
Reproducing Sound-Proofing (Part Deux)
Posted by Anonymous on Monday, August 16, 2004 8:27 PM
Eureka!

Some of the greatest inventions/ideas have come from the result of failures.

So that being said.....i made my first pull tonite using my new vacuum former (been lying around for 6 years actually) and of course it didn't go so well; pieces too close together, trying to pull too many pieces, plastic not soft enough, creases, etc., etc. (hey i had to test its limits) Smile [:)]

BUT on the bottom of this vacuum former there is a magnetized grate - so naturally when i did the pull, the plastic pulled onto the grate as well. Made a 'decent' criss-cross pattern onto the plastic which could be passable as sound-proofing. For this guage grate, it would probably be more suitable for the 1/24 scale Huey. However, i'm envisioning trying to pull super-soft .010 styrene onto a piece of metal screen to get the effect i want. I'm thinking it's fast, less time consuming, and certainly do-able.

Just thought i'd share.

Here is a pic of the sample piece from tonite's pull:



NOTE: the ridges are more diamond shape toward the top of the plastic. Hard to really tell, but you get the idea.
  • Member since
    July 2003
  • From: Piedmont Triad, NC (USA)
Posted by oldhooker on Monday, August 16, 2004 11:00 PM
Wow, look's interesting for sure, and you're getting broke in real good on the Vacuformer machine!!

With all this inspiration, we should be seeing some in-progress shots before too long, shouldn't we? Smile [:)]

Take care,
Frank

  • Member since
    November 2005
Posted by Anonymous on Tuesday, August 17, 2004 7:56 AM
Hey Frank-

Not unless you consider progress to be; put it together, take it apart - do it again/right, put it back together.

I lost all my reference material, so i'm going off of just a 'few' pics i found around the net. Not to mention, i have no 'scale' drawings either. Of course i do something and then look at the pic and discover it's not accurate or i missed something, so i have to correct it.

I'm a slooooooooow builder so be patient - i'll try to have something up this week for you to laugh, errr, look at. Wink [;)]
  • Member since
    November 2005
Posted by Anonymous on Saturday, August 21, 2004 3:49 AM
It's funny, I remember the quilted soundproofing in the Hueys and Chinooks in the mid eighties, I even have a couple of photos that show it pretty well, but I can't recall seeing it in the Crashhawks.

Al
  • Member since
    January 2004
  • From: Peru, IN
Posted by leadsled on Saturday, August 21, 2004 5:45 PM
It seems to me that approx 10 yrs or so ago there was a program called "adventures in scale modeling" or something like rthat. any way i seem to remember a segment they did on an aircraft that had the sound proofing material. i'll see if i have it on tape to see what they used for the material.
  • Member since
    November 2005
Posted by Anonymous on Saturday, August 21, 2004 6:01 PM
Not sure i remember that program - but keep us posted.

I vacu-formed a piece of .015 styrene over some window screen, and it turned out really well - give it a look. Sorry about the blurry pic - it was hard to hold the piece and the camera still at the same time. Going to give .010 a try next.



I'm leaning towards the .015 styrene as it gives it just enough raised detail. Since sound-proofing has subtle bumps in it - this may be the way to go.

I'll keep you posted on my .010 test.

-Jeff
  • Member since
    November 2005
Posted by Anonymous on Saturday, August 21, 2004 11:25 PM
Jeff,
That looks just great. Now what are you going to do about reproducing those button thingies?Evil [}:)]

Al.
  • Member since
    July 2003
  • From: Piedmont Triad, NC (USA)
Posted by oldhooker on Saturday, August 21, 2004 11:33 PM
I think you're onto something there, Jeff, looks good!

I remember the show "Adventures in Scale Modeling".... even the episode where they were doing a UH-1, which had some nice video sequences made from the jump seat while flying low over the tree tops!

That was a great show!

Take care,
Frank

  • Member since
    May 2004
  • From: Aberdeen, Scotland
Posted by Colin Russell on Monday, August 23, 2004 12:03 PM
Another option is to use the thin lead from the top of a wine bottle.
Step 1 - carefully cut round the top and remove the circular bit.
Step 2 - Using a corkscrew, remove the cork and drink the contents.
Step 3 - (Ususlly the next day!) Try to find the empty bottle.
Step 4 - Run a scalpel down vertically in a straight line and carefully peel off the foil.
Step 5 - Using a blunt pencil, ruler and a mouse mat, draw the lines of your chosen pattern into the foil. By using a mouse mat, the pencil will make a nice groove in the foil.
Step 6 - The finished foil can then be cut into whatever shape you need for the interior. Many helos have a set of soundproofing panels made to measure and fit round the various bits and pieces inside the aircraft.
Foil has the advantage over plastic card because it is softer and more pliable and allows you to sculpt it round the interior of the model.
Hope this helps. Now where's that corkscrew.....
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