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Old Sep 17, 2008, 02:31 PM
....When pigs can fly
W@CC0's Avatar
Duffel - Belgium
Joined Jan 2004
1,637 Posts
Contest
Scratch-Build-Off 3 - 1/9 scale P-39 Airacobra

Yow Yow

This will be my design and maybe also the build thread for my 1/9 scale Bell P-39Q Airacobra entry for the third Build Off contest.

Airplane specs:
Span: 1156mm
Lenght: 1022mm
4 channel steering
Motor will be a turnigy 35-36B 1300 kv outrunner.
http://www.hobbycity.com/hobbycity/s...unner_(Eq:2814)
3s1p 2500mAh Flight Power or Polyquest Lipo pack.
Airfoil is a Naca 2412

Construction will be ply and balsa. Similar to the Dewoitine and Macchi that I made.

Here are a couple of screenshots. I cleaned up the 3d model a bit. I still got to draw some wing fairings and then I can cut it into parts.

I also tried to render it with some markings but my render program is broken....it doesn't give the result I wanted.

I like the Duxford Flying Legends paint sheme, but I found a picture of a painting of a Cobra with a shark mouth woch I also like. Does anyone know wich squadron used these markings?

Tom
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Old Sep 17, 2008, 02:51 PM
Registered User
Lawton/Fort Sill, OK
Joined Sep 2002
1,952 Posts
Finally!!!!I have been waiting for someone to build and maybe have plans for a P-39. I am watching this with intent interest. Please let me have first dibs at plans or short kit. PLEASE PLEASE PLEASE
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Old Sep 17, 2008, 04:22 PM
....When pigs can fly
W@CC0's Avatar
Duffel - Belgium
Joined Jan 2004
1,637 Posts
Now you are enthousiast

I've just put the wing fillet on.
I was checking the surfaces of what I've drawn and I played a little arround and suddely I had a chrome Cobra.

T
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Old Sep 17, 2008, 05:04 PM
Mayday!
Newtron's Avatar
USA, OH, Olmsted Falls
Joined Sep 2005
1,246 Posts
Quote:
Originally Posted by W@CC0
I like the Duxford Flying Legends paint sheme, but I found a picture of a painting of a Cobra with a shark mouth woch I also like. Does anyone know wich squadron used these markings?

Tom
I think many squadrons in the Pacific did. Here's an example from 39 FS 35th FG New Guinea.

I know it's early but if this makes it to Manzano as a kit, sign me up.

Tim
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Old Sep 17, 2008, 08:51 PM
Not now, Kato! Not now!
katobaggins's Avatar
Sheridan, OR USA
Joined Jan 2005
143 Posts
I looked on Wings Pallette and here. I found several with the shark's mouth. I don't think you'll have too much trouble finding something you like.

Looks like the 39th FG used the mouth a lot.
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Old Sep 18, 2008, 06:01 AM
frenzyscot
Dundee, Scotland
Joined Oct 2004
652 Posts
Nice,
The white tail, olive green fuselage scheme is actually one of my favourites and I was initially thinking of finishing my P63 like that, but you could do a spectacular finish using aluminium tape.

and If I may be a little scale-picky, just to point out that I think you are missing the wing central platform from you drawings , it can be rather subtle looking at pictures but it is clearly there.

cheers
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Old Sep 18, 2008, 06:46 AM
....When pigs can fly
W@CC0's Avatar
Duffel - Belgium
Joined Jan 2004
1,637 Posts
Hi xterarc

I followed your P-63 thread with great interest. Is it fixed already?

Quote:
and If I may be a little scale-picky, just to point out that I think you are missing the wing central platform from you drawings , it can be rather subtle looking at pictures but it is clearly there.
Sure you may
If I understand you correct you are saying that the wing has a centre section with wingtips on? But isn't that a P-63 feature?
It is hard to see on pictures, especially with the Duxford Cobra because the white on the leading edge stops before the fuselage. But I think there isn't one (except for the fuselage and the fillet between the fuselage and wing)

Attached are the drawings I made it from. They come from VAR (the russian site) and the other drawing comes from a French site

Tom
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Old Sep 18, 2008, 07:45 AM
Registered User
Lawton/Fort Sill, OK
Joined Sep 2002
1,952 Posts
Yes the 39th were the shark mouths. They flew P-39's and P-400's (British Lend lease P-39;s that didnt make it to Britiain).
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Old Sep 18, 2008, 01:36 PM
....When pigs can fly
W@CC0's Avatar
Duffel - Belgium
Joined Jan 2004
1,637 Posts
I started after diner.
Now 1 hour later, the wing parts are mostly done

T
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Old Sep 18, 2008, 02:44 PM
....When pigs can fly
W@CC0's Avatar
Duffel - Belgium
Joined Jan 2004
1,637 Posts
And a little bit of work done on the fuselage.

8 fuslage formers it will be. And arround the cockpit 2 more balsa formers for the top only.

Now I quit for today. I think I'll go eat an ice cream

Tom
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Old Sep 18, 2008, 03:34 PM
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Lawton/Fort Sill, OK
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Getting there.
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Old Sep 18, 2008, 04:13 PM
frenzyscot
Dundee, Scotland
Joined Oct 2004
652 Posts
Hi Tom,

I have attached a drawing for the wing,
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Old Sep 18, 2008, 04:17 PM
P. Seitz
United States, IA, Mechanicsville
Joined Jan 2006
547 Posts
I always thought that the Reno racer Mr. MENNEN would be a great way to finish a P-39
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Old Sep 18, 2008, 04:28 PM
....When pigs can fly
W@CC0's Avatar
Duffel - Belgium
Joined Jan 2004
1,637 Posts
I see what you mean Xterarc.
But that part is almost completely covered by the fairing and in the front there is this opening for the radiator or oil cooler or whatever thingy that needs fresh air. So I don't think you'll really see it as a centre wing panel. Especially not on the model where it would be only 5mm on each side next to the fuselage. I'll leave it as it is I think.

Cool Seitz2c
I didn't know there was a Reno Cobra. I can't imagine it wins much

Tom

Btw; it was a good ice cream
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Old Sep 18, 2008, 05:11 PM
Fly2Build.com
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Redding,California
Joined Dec 2003
2,566 Posts
Looking great as usual Tom. I'll be following with interest.

Mike
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