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Building a balsa cowl

Old 03-29-2007, 02:20 PM
  #1  
foosball_movie
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Default Building a balsa cowl

Hi. I've search for some threads on how to build a cowl, but haven't found a good step by step technique. Are there any sites, mags, etc. that show step by step intructions?
Old 03-29-2007, 02:35 PM
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Gringo Flyer
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Default RE: Building a balsa cowl

I am currently building the yak 3 from redstarrc and it has a balsa cowl. Take a look at the manual it has some pics that might help. www.redstarrc.com
Old 03-29-2007, 06:26 PM
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waross
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Default RE: Building a balsa cowl

Have built basla cowls before and now I go for the ease of ordering a fiberglass one and gives me much better looking front end
Old 03-29-2007, 07:07 PM
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Default RE: Building a balsa cowl

You can make a fiberglass cowl using the "Lost Foam" method. Here is few photos of a recent one I made. Laminate blue foam sheets to get the size you need, sand to shape and glass the outside with fiberglass cloth and epoxy.
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Old 03-29-2007, 07:10 PM
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Default RE: Building a balsa cowl

Once the epoxy cures, melt the foam out with acetone or gasoline, I found that gasoline works as well as the acetone on blue foam.
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Old 03-29-2007, 07:13 PM
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Default RE: Building a balsa cowl

I used balsa where finer detail is necessary
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Old 03-30-2007, 10:07 AM
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ginsco75
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Default RE: Building a balsa cowl

Tony,
That cowl looks great. When you say blue foam do you mean the stuff that home depot sell's that is about a half inch thick and real smooth? Also what weight glass do you normally use. I need to make a cowl and a set of wheel pants and this will be my first attempt at it.
Thanks
Old 03-30-2007, 11:22 AM
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Default RE: Building a balsa cowl

This is probably what you are looking for:
[link=http://origin-images.rcuniverse.com/forum/upfiles/183029/Sp45492.jpg]Page 1[/link]
[link=http://origin-images.rcuniverse.com/forum/upfiles/183029/Lh18451.jpg]Page 2[/link]
[link=http://origin-images.rcuniverse.com/forum/upfiles/183029/Ek15077.jpg]Page 3[/link]
[link=http://origin-images.rcuniverse.com/forum/upfiles/183029/Ec87589.jpg]Page 4[/link]
[link=http://origin-images.rcuniverse.com/forum/upfiles/183029/Pk30097.jpg]Page 5[/link]
[link=http://origin-images.rcuniverse.com/forum/upfiles/183029/Jo29659.jpg]Page 6[/link]
[link=http://origin-images.rcuniverse.com/forum/upfiles/183029/Qj20924.jpg]Page 7[/link]

It's from the Sept. 2000 issue of RCM
Old 03-30-2007, 12:34 PM
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Default RE: Building a balsa cowl

Krossk,

Talk about timing! I am building a Sig Mid-Star and contemplating a cowl. I am at that point in the build so this is very timely stuff! Thanks for posting!

-MA
Old 03-30-2007, 12:53 PM
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Default RE: Building a balsa cowl

I can't take credit for the original posting. Someone else posted it for me a while back and I just happened to have a hard-copy laying here with the links to the pages printed at the top. It is, however a very good article to have in one's reference library...
Old 03-30-2007, 02:01 PM
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Default RE: Building a balsa cowl

Yep, copied and filed away. I was hoping you had the originals as a few of the scans could use a touch-up or two . Oh well, its great information nevertheless.

Yet another reason to love these forums.

-MA
Old 03-30-2007, 02:20 PM
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Default RE: Building a balsa cowl

Import it to Acrobat then increase the size. It will be plain as day.

Bob
Old 03-30-2007, 03:24 PM
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Default RE: Building a balsa cowl


ORIGINAL: wildchild45177

Import it to Acrobat then increase the size. It will be plain as day.

Bob
Agreed. Probably wasn't very clear in my prior post . I was thinking it could have been copied better - leaving out the gutter of the page ... small stuff that really didn't effect the readability of the piece, just asthetics. Hummm, I guess that same rationale is what keeps my kits on the building table longer - always trying to make everything just right and asthethetically pleasing.
Old 03-30-2007, 03:38 PM
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Default RE: Building a balsa cowl

ORIGINAL: krossk

I can't take credit for the original posting. Someone else posted it for me a while back and I just happened to have a hard-copy laying here with the links to the pages printed at the top. It is, however a very good article to have in one's reference library...
I'm the "someone else". Thanks krossk. I used this articlt to build a cowl on the tiger 2. I can re-scan the article if you like. What pages do you want posted?

Mods
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Old 03-30-2007, 03:42 PM
  #15  
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Default RE: Building a balsa cowl

ORIGINAL: Mods-R-Me
ORIGINAL: krossk
I can't take credit for the original posting. Someone else posted it for me a while back and I just happened to have a hard-copy laying here with the links to the pages printed at the top. It is, however a very good article to have in one's reference library...
I'm the "someone else". Thanks krossk. I can re-scan the article if you like. What pages do you want posted?
Mods
Yep - that's right. I guess the memory's going faster than I thought.
So how's the ModKat coming along? Haven't seen any updates for a while.
Old 03-30-2007, 03:45 PM
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Default RE: Building a balsa cowl


ORIGINAL: krossk

ORIGINAL: Mods-R-Me
ORIGINAL: krossk
I can't take credit for the original posting. Someone else posted it for me a while back and I just happened to have a hard-copy laying here with the links to the pages printed at the top. It is, however a very good article to have in one's reference library...
I'm the "someone else". Thanks krossk. I can re-scan the article if you like. What pages do you want posted?
Mods
Yep - that's right. I guess the memory's going faster than I thought.
So how's the ModKat coming along? Haven't seen any updates for a while.
I know my last update was on 3/19/07. Sanding is taking its toll on my sanity. Good news is that I'm pretty close to making the molds and my telemetry from eagletreesystems came in.

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