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Does a foamy have to be 'profile'?

Old 04-27-2012, 06:11 PM
  #1  
quorneng
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Default Does a foamy have to be 'profile'?

Not a very serious issue but the word 'foamy' always seems to conjure up an image of a profile fuselage with a flat board wings.

Would a true 'scale' plane but made of foam still be classified as a 'foamy'?
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Old 04-27-2012, 08:35 PM
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dahawk
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Good Question. So many ARF's are now being made from some kind of foam, EPP, EPO, etc. Some combine foam with wood parts. I have not heard the term "Woody" not to say that if it's not balsa, it's therefore a foamie. I have 9 planes and they are all made of foam of some type.

Not sure if the term "foamie" has a negative connotation as in: "Aw, he flys those foamies" as if to suggest that foam built planes are inferior to balsa built planes.

The old school guys or " purists " still think balsa and monocoat.

Let's face it, foam for model aircraft hasn't really been around that long. When I got my first Joe Bridie kit in the late 70's everything was balsa. No foam. No electric for that matter. All glow.

Now, the Chinese can pop out new molds on a regular basis. The hard tools for these multi cavity foam molds would cost over $150K or more each, that is if you could find a good mold builder. It's a dying trade in the US. The great mold makers that were European immigrants raised their children to become doctors, lawyers and accountants.

Like you, when I think foamie, I think of 6mm depron or Dollar Tree foam board to make profile planes. You can even make kf and armin airfoils from foam. Can carve/machine and shape foam block sections to form 3d profile shapes.

Not sure what the correct answer is here or if there really is one.

-Hawk
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Old 04-27-2012, 10:19 PM
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mclarkson
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Absolutely, positively not. Most would consider, say, my Radian or Strykers to be 'foamies' as they are nearly 100% foam. People build amazing scratch models out of foam.

Check out warhead's sweet Grumman Goose in this thread.


My personal most sophisticated scratch-build model is this Sopwith Triplane, made entirely from blue fanfold foam.
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Old 05-07-2012, 11:19 PM
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warhead_71
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Thanks for the plug, Mark. Here's more "scale" foamies:

http://www.wattflyer.com/forums/show...821#post805821

And if you check out my blog on RCG you can see I have plans for a P6E that is next in line.
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Old 05-08-2012, 01:08 AM
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Voltron
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Thats a really good question Quorneng. How about the Pink Foyd. It has a 24 ft wingspan, a 14 ft fuselage and weighs 20 pounds. Would that be considered a foamy?
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Old 05-08-2012, 01:59 AM
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firemanbill
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Profiles... I don't think so! I present these three as a sampling of things that can be done with foam!
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Old 05-08-2012, 02:52 AM
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warningshot
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My T-28 and F-86 are foam.
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Old 05-08-2012, 02:58 AM
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Bub Steve
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Foam-Fun,,,,, you can do anything!bubsteve
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Old 05-08-2012, 04:01 PM
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quorneng
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I know it may be a bit contentious but to my mind it depends what you use the foam for.
Using it to create an aerodynamic shape on an conventional load bearing structure although quite reasonable is surely only half the challenge.

My contribution to the discussion.
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No carbon fibre just 0.8mm hard balsa for the spar flanges and a bit for the motor mount otherwise its all built from 2 & 3mm Depron sheet.
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Old 05-08-2012, 04:57 PM
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Bub Steve
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Originally Posted by quorneng View Post
I know it may be a bit contentious but to my mind it depends what you use the foam for.
Using it to create an aerodynamic shape on an conventional load bearing structure although quite reasonable is surely only half the challenge.

My contribution to the discussion.
Attachment 159833
No carbon fibre just 0.8mm hard balsa for the spar flanges and a bit for the motor mount otherwise its all built from 2 & 3mm Depron sheet.
I zoomed you pix's up and Wowser! great Job!!bubsteve
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Old 05-09-2012, 10:19 AM
  #11  
pattern14
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Nothing against balsa, but 99.9% of my planes are "foamies", and none are profile or have "flat " wings. EPP keeps me flying long after types of foam are in the bin though....
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Old 05-09-2012, 11:24 AM
  #12  
solentlife
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Me - I live in both camps and happily combine both .... as both have advantages.

Foamy to me is any model that is airframe in foam whether profile or full bodied.

But as to my combo approach ... here's a complete wood Ultimate that was repaired with foam ... giving me a quieter and stronger airframe ...









I may be an old dog from balsa and tissue days ... but I can still learn new tricks !!
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Old 05-09-2012, 08:32 PM
  #13  
Bub Steve
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Cool! theres a Hy'bread RC plane!bubsteve
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Old 05-10-2012, 11:56 AM
  #14  
solentlife
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Originally Posted by stevecooper View Post
Cool! theres a Hy'bread RC plane!bubsteve
I can honestly say it flies quieter, better than ever it did as original. And it no longer has that fragile motor mount / front end ....

[media]http://www.youtube.com/watch?v=EdwcgWPGmOw[/media]

Nigel
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Old 05-11-2012, 03:46 AM
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flypaper 2
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Here's a Byron Christen Eagle I bought used in about 95. It's a 1/3 scale foamy covered with HK yellow covering material.
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Old 05-11-2012, 05:39 PM
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solentlife
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Many UK based model kit producers like Mick Reeves, Rojair etc. used veneered foam top-decks to fuselages .... developed on from the veneered foam wings.
It made for strong, good looking, easy to build models that flew excellently.

The idea can be adapted as I did for the Ultimate repair ... the only part I left of was I decided later not to veneer over with thin balsa ... a trick that really smooths it all out and gives that last bit of finish before covering.

Foam drinking cups as cowls .... sliced through as scoops .... there are loads of things out there in foam that easily adapt to our use.
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Old 06-21-2012, 07:07 AM
  #17  
Propjobbill
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I hav built more than 100 foamies and 90% of them are build up fuselages. Any most of them are full airfoil wings.

http://www.rcgroups.com/forums/member.php?u=44259
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Old 06-24-2012, 08:06 PM
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Here's my latest take on the Pink Passion. Pan wings (didn't even KF 'em), down curved wingtips, built-up fuselage superstructure. It's still a foamy.
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