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  #61  
Old 04-19-2020, 10:22 PM
aeppel_cpm aeppel_cpm is offline
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Quote:
Originally Posted by MarkB.
Chris,

Thank you for the wonderful data. Thanks to Dave and Roy for their contributions also. And thanks to Charles for getting me started down this path with his conversions last year. My boosters are most decidedly sport scale but it's fun to build something unusual that also flies well. Chris' pictures made me adjust my paint plan a little, but I should finish today or tomorrow.

Now that I see how they look, I'm going to see if my sis will cut me some "Thiokol"s.

Thanks again guys


I love all the information that’s come out. My 1/5 pro series kitbash is also definitely sport scale. And beautiful in the air.

Best luck on your Paiute flights.
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  #62  
Old 04-20-2020, 08:52 AM
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RoyH RoyH is offline
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Remarkable work, Guys! Wishing you blue skies and calm winds for all your launches...!
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  #63  
Old 04-20-2020, 11:59 AM
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Chris_Timm Chris_Timm is offline
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Quote:
Originally Posted by Ez2cDave
Thanks, Chris !

What do you think about that UTE Fin Drawing ? It looks "off" ( not drawn to scale ).

Dave F.


You have to remember that these were just a couple of kids at college.
And not engineering but a business college.
So we get what we get and we are forever thankful!
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  #64  
Old 04-20-2020, 12:32 PM
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Ez2cDave Ez2cDave is offline
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Quote:
Originally Posted by Chris_Timm
You have to remember that these were just a couple of kids at college.
And not engineering but a business college.
So we get what we get and we are forever thankful!


I'm not criticizing them, at all . . .

I am saying, however, that it might be a good idea to redraw everything in true scale, for accuracy's sake.

If there are any "CAD Guru's" out there, I will be happy to send you everything I have on this prototype.

Shoot me an email : Ez3cDave@aol.com

Dave F.
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  #65  
Old 04-20-2020, 11:00 PM
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Chris_Timm Chris_Timm is offline
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Going off of just the overall length and width and accounting for given angles only,
this is what I come up with.
Almost a perfect match to the Thiokol print with a slight deviation where the
small angled notch near the nozzle ends up.
The seven STA's from top to bottom are:
0, 10.3, 20.1, 23.9, 26.6, 27.2, and 30.3.
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  #66  
Old 04-20-2020, 11:49 PM
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Ez2cDave Ez2cDave is offline
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For comparison . . .
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  #67  
Old 04-21-2020, 07:31 AM
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GuyNoir GuyNoir is offline
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Quote:
Originally Posted by Chris_Timm
You have to remember that these were just a couple of kids at college.
And not engineering but a business college.
So we get what we get and we are forever thankful!


Minor correction: William and Mary is a public university, generally known as a liberal arts college. Rob majored in Physics with a minor in Theater. I majored in Economics with a minor in English.

https://en.wikipedia.org/wiki/Colle...illiam_%26_Mary
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  #68  
Old 04-21-2020, 08:47 AM
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Chris_Timm Chris_Timm is offline
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Discrepancies in the source documents could be the reason this data has not been
compiled into a single drawing yet.

Tried scaling off of the hand drawn beauties from Thiokol but even those
have anomalies between different examples of the same fin.

There are more color photos of different payloads -- but no dimensions.

Best we can hope for is a drawing(s) with a couple of "~" here and there.

Good enough for a great sport-scale model.
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  #69  
Old 04-21-2020, 01:44 PM
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Ez2cDave Ez2cDave is offline
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Quote:
Originally Posted by Chris_Timm
Discrepancies in the source documents could be the reason this data has not been
compiled into a single drawing yet.

Tried scaling off of the hand drawn beauties from Thiokol but even those
have anomalies between different examples of the same fin.

There are more color photos of different payloads -- but no dimensions.

Best we can hope for is a drawing(s) with a couple of "~" here and there.

Good enough for a great sport-scale model.


Chris,

If you have the skills to "do this justice" ( I do not ), shoot me an email and I'll send you everything I have on the UTE & PAIUTE TOMAHAWK, in return for a copy of the drawing(s) generated.

Ez2cDave@aol.com


Dave F.

Last edited by Ez2cDave : 04-21-2020 at 02:51 PM.
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  #70  
Old 09-06-2020, 06:01 PM
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MarkB. MarkB. is offline
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Comrades:

So after having to repaint the boosters, I'm calling this project done. Picture shows the Ute and Paiute boosters under Tomahawks. Scale is 1/10. They are shown next to my Big Bertha for size reference. Both boosters are 13mm powered and due to slightly different construction techniques, weigh about the same. The Ute had flown several times before getting painted . I thought long and hard about putting an 18mm mount in the Paiute but decided that because it's tumble recovery, lower is better. The colors are Duplicolor Hot Rod primer grey for the dark areas, Duplicolor primer grey fins, Rustoleum Aluminum body and Rustoleum Flat White fin mounts. The masking project was something else and as noted, it took me two tries to get it right.

The Tomahawk sustainers were fun, too. The Tomahawk 7 on the Ute needs another 1.20" on the payload section and I may or may not get to that at some point in the future. The Tomahawk 12 on the Paiute is really the paint job from a Nike-Tomahawk 12 in one of the Total Impulse news letters but I really like the colors. I felt like I nailed that one. It is 18mm powered. The Tomahawk 9 on the far right is in the colors of the Tomahawk in Rockets of the World. All of the Tomahawks are recovered on Semroc 'chutes.

A plug for the flat coat: I used a new product I picked up at Hobby Lobby called Tree Top Studio acrylic matte clear and really does knock the shine off with one light coat. As with any acrylic clear you have to watch your humidity levels when you spray. I loved it. There's a clear gloss too, but I haven't tried that yet.

I had fun with this project. Thanks to Charles, Dave, Roy and Chris for their documentation. The next time you see them, it'll be in a launch report. Hopefully, they'll open the park soon and we can launch.
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