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  #31  
Old 06-10-2012, 01:35 PM
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Quote:
Originally Posted by cdavenport View Post
It sure looks to me as if the guy is applying some sort of a sealant to the seams in one picture.
... and i think that the need to seal the casing is another clue that it was a pumpkin casing. The "pumpkin" bombs exploded by impact, but the FM's trigger was also activated by the atmospheric pressure. From here the need to seal the casing, for avoid that the aerodinamic pressure could alter the reading of the altitude. ... may be ...

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Originally Posted by cdavenport View Post
Is there something that attaches to the tabs on the back of the fins?
I have some problem to understand what do you refer talking about "tabs on the back of the fins". Let me know which part you are taking about.

Thanks for your encouragement. I'm working on the spray texture and something is no working with the solution i envisioned.

Best, Nando
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  #32  
Old 06-10-2012, 02:02 PM
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Quote:
Originally Posted by nando View Post
..I have some problem to understand what do you refer talking about "tabs on the back of the fins". Let me know which part you are taking about.

Best, Nando
I had the same question, when looking at the photos in post 22 showing the back of the fins...notice the white colored extensions that are apparently folded at a 90 degree angle to the yellow colored fins....see the red arrows in the photo attached....

Cheers!
Jim
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  #33  
Old 06-10-2012, 07:04 PM
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Yes, what Jim pointed out.Thanks, Jim for clarifying.
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  #34  
Old 06-11-2012, 02:48 AM
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Tail spoilers

Here a picture that is better than thousand words.



I do not know the function of those spoilers, but i think that they correct the flow (very complex) on the rear part of the bomb, may be retarding the formation of the vortices.

I just tried to reproduce those parts. Nothing to attach here at those "tabs".

Best, Nando
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  #35  
Old 06-11-2012, 07:18 AM
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Thanks, Nando!

That answered that right nicely!
Do you believe the interior of the tail should also be yellow then, as well as the little tabs we have been talking about?

Really an impressive design and build, you have done wonderful work on this project!

Cheers!
Jim
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  #36  
Old 06-11-2012, 09:19 AM
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Quote:
Originally Posted by jimkrauzlis View Post
...
Do you believe the interior of the tail should also be yellow then, as well as the little tabs we have been talking about?... Jim
Yes, all the tail components, if visible, are colored on both sides, as you can see in the pic below. It represents a draft version of the sheet with the parts of the tail. On the left the components, on the right, the large rectangle will be printed on the back side.



In the prototype I printed some part colored just to see how the details stand out and wich color was better. In this fase i'm concentrated to verify the general fit and the "engineering" solutions that i adopted.

Thanks for appreciations.
Best, Nando
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  #37  
Old 06-11-2012, 11:12 AM
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Thank you Nando and Jim. Just an amazing design!
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  #38  
Old 06-11-2012, 02:35 PM
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You could also provide a blank for printing on coloured paper?
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  #39  
Old 06-12-2012, 05:10 AM
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Spray

Here is where I am today.




This is a screen shot of a draft version of the PDF file, with details, the appropriate colors, and the texture of the spray sealant on the polar cap.
It was hard to achieve this result and I did many attempts before I could reach this result. I used Gimp in combination with Inkscape, and the PDF file isn't completly vectored, but at 400% of magnification (it's for you Charles if You would give a brother at your LB ) the graphic resolution is still good enough.

Quote:
Originally Posted by legion View Post
You could also provide a blank for printing on coloured paper?
I tought at this solution but my major concern are the boundaries. I used a darker shade of yellow for underline the boundaries without underline too much the seal between two adiacent rings (look at the prototype with the boundaries black ). If I do a blank version I would put the boundaries out of the shape, to avoid that the shade of color of the paper could be too near at the color of the boundaries, making them hardly visible.

However I have to terminate the colored version and than I will can consider the blank one

Best, Nando
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  #40  
Old 06-12-2012, 12:45 PM
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Quote:
Originally Posted by nando View Post
Here is where I am today.

I used Gimp in combination with Inkscape, and the PDF file isn't completly vectored, but at 400% of magnification (it's for you Charles if You would give a brother at your LB ) the graphic resolution is still good enough.

Best, Nando
You are a gentleman, Nando. In fact, scaling this one up, too, for a cutaway is my intention. I am actually heading off to the machine shop to start construction of the bomb casing and gun. I'll post on my dedicated thread photos once I get something to show.
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