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1/7th Scale Composite Warbird P-40E Warhawk Build

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Old 12-02-2012, 06:25 PM
  #326
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Default RE: 1/7th Scale Composite Warbird P-40E Warhawk Build

Removed the clay and formers.
Next it's leading edge sections.
Got a hand flipping the mould - GTG again








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Old 12-06-2012, 09:19 PM
  #327
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Default RE: 1/7th Scale Composite Warbird P-40E Warhawk Build

hmmmm - is that a light at the end of the tunnel that I see ??

Note that I've overlapped the upper and lower sections to ensure that there is a guaranteed alignment along the leading edge. If you look even closer you might notice that the inboard overlap is on the upper section while the outboard overlap is on the lower section...if you look even closer you might also notice that the flanges have draft in two planes...if you look still closer you just get bug-eyed (like me)






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Old 12-08-2012, 10:17 PM
  #328
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Default RE: 1/7th Scale Composite Warbird P-40E Warhawk Build

Wings

Now more nights than I remember,
Did I bow to Glory’s charms.
Tonight My Lady smiles on me,
With bread in open arms.

Lo my world breaks open,
Dawning stairs that weren’t there,
Each step built with hand forged nails,
And dirty, unkempt hair.

Now steely arms spread open:
I have earned the right to fly.
The embers glow a quiet orange
As Glory casts my shadow on an ever sun filled sky.

- b1heqh54


...don't know how long this wing mould has taken me, but tonight it no longer matters...




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Old 12-10-2012, 02:58 AM
  #329
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Default RE: 1/7th Scale Composite Warbird P-40E Warhawk Build

Merry Christmas to me...



Tomorrow we look inside.
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Old 12-10-2012, 07:39 AM
  #330
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Default RE: 1/7th Scale Composite Warbird P-40E Warhawk Build

Great work James, realy nice
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Old 12-10-2012, 06:09 PM
  #331
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Default RE: 1/7th Scale Composite Warbird P-40E Warhawk Build

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I’ll fix the broken flange pretty quickly, but what you see is what you get. (prying with a screw still in place)

Everything worked out great !! (but I have some new ideas for next time&hellip

Enjoy the video.

http://www.youtube.com/watch?v=GXUW5eBjwJA&feature=g-crec-u

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Old 12-19-2012, 10:02 AM
  #332
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Default RE: 1/7th Scale Composite Warbird P-40E Warhawk Build

All trimmed up, clean and waxed.

Here's a tip - keep your bench waxed up good.


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Old 12-21-2012, 06:08 AM
  #333
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Default RE: 1/7th Scale Composite Warbird P-40E Warhawk Build

A little dusty and a little worse for wear, I think I might just keep this plug hanging around like the hero it is....what a brave little soul


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Old 12-21-2012, 07:08 AM
  #334
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Default RE: 1/7th Scale Composite Warbird P-40E Warhawk Build

Love seeing manufacture process of this! its awesome and looking good!
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Old 12-21-2012, 08:02 PM
  #335
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Default RE: 1/7th Scale Composite Warbird P-40E Warhawk Build

This is the intended configuration of the lower tool during layup. As you can see, the leading edge will be integral with the lower skin. I will try one with a spar that straddles the joint between the upper skin and the leading edge. This may just be enough to make things nice and easy. If not, then I may later make joggle flanges to bolt to the lower section that would form a glue lip when the joggle flanges were removed prior to final assembly and I will move the spar rearward in the chord. I expect that I may have to vacuum bag the lower skin just to hold the cloth on the inverted mould face of the upper leading edges. Worst case they can always be layed up separately and joined to the lower skin while still a little green. If you look very closely you might see the LED's that I moulded into pockets recessed into the trailing edges at the ailerons. They are embedded proud of the tool face in a pocket designed to give the pushrod for the ailerons a place to exit the wing. This should provide nice lighting inside the tool during final assembly - cool or what...lol






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Old 01-07-2013, 03:25 PM
  #336
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Default RE: 1/7th Scale Composite Warbird P-40E Warhawk Build

Happy New Year Everyone !!

...and this year should prove to be an exceptional one

The most common question I get is how much detail do you lose.
My standard answer is don't breath on your plug while you brush on your tool coat.
Here's a few quik pics of the top of the wing mould.
This should ease your fears about losing any detail, but be warned I don't use PVA, only a thorough coat of pure carnauba wax.

Too many pictures you say - too bad










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Old 01-07-2013, 08:38 PM
  #337
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Default RE: 1/7th Scale Composite Warbird P-40E Warhawk Build

Here's a new idea...




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Old 01-07-2013, 10:34 PM
  #338
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Default RE: 1/7th Scale Composite Warbird P-40E Warhawk Build

Hi, what is the idea for the wings ?

ps: Nice mould you made
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Old 01-08-2013, 10:09 AM
  #339
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Default RE: 1/7th Scale Composite Warbird P-40E Warhawk Build

Thanks Rumen !
No ideas for wings yet....
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Old 01-08-2013, 10:10 AM
  #340
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Default RE: 1/7th Scale Composite Warbird P-40E Warhawk Build

Upper Wing Skin #1

I wonder if I could introduce a two part pourable closed cell urethane foam into the brass fittings and get it to react slowly enough to avoid voids...maybe at a 2lb/ft^3 density. I've tried before with limited success, but first we'll try a simpler approach to see where we stand.









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Old 01-08-2013, 12:32 PM
  #341
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Default RE: 1/7th Scale Composite Warbird P-40E Warhawk Build

Hi James
You made very good work with this moulds. I think on the your last picture that the composite detail have to many epoxy , if this detail will be for fly model I think that the epoxy in the fabrik is to much .

usually in the best case, the fabric is saturated to about 35% with the vacuum
For maximum light and sound detail I think you need while still liquid resin can be wiped with paper towels if you do not use a vacuum

James, I am very glad that your topic continues! Good luck
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Old 01-08-2013, 12:37 PM
  #342
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Default RE: 1/7th Scale Composite Warbird P-40E Warhawk Build

Thank you sir.

Yes, I know there's too much resin to be optimum. This will likely hang in my shop like an insurance policy in case my mould breaks....
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Old 01-08-2013, 01:32 PM
  #343
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Default RE: 1/7th Scale Composite Warbird P-40E Warhawk Build

O yes , great decision , I made the same with my model of Messerschmitt E4

greetings from Bulgaria Đ•uropa
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Old 01-10-2013, 12:31 AM
  #344
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Default RE: 1/7th Scale Composite Warbird P-40E Warhawk Build

and greetings from Canada my friend

550 grams or 19.4 ounces or 1.2 lbs - room for improvement












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Old 01-10-2013, 11:21 AM
  #345
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Old 01-10-2013, 09:05 PM
  #346
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Old 01-12-2013, 09:19 PM
  #347
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Default RE: 1/7th Scale Composite Warbird P-40E Warhawk Build

These leading edges should be nice and light.
All they have to do is deflect air over the spar.



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Old 01-13-2013, 08:46 AM
  #348
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Old 05-21-2013, 06:56 AM
  #349
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Default RE: 1/7th Scale Composite Warbird P-40E Warhawk Build

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So strong they’re scary and so light it makes you look twice when you pick one up…

Al/GRP Laminated D-box Leading Edges

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Old 05-23-2013, 05:52 AM
  #350
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