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  #21  
Old 03-31-2019, 05:01 PM
aeppel_cpm aeppel_cpm is offline
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Quote:
Originally Posted by Ez2cDave
Yes . . .

Note the different fins.

Dave F.


And I donít think those are the fins shown in the Tomahawk brochure I have. Hmmm...

Iím wondering if I can print up something that screws to the fins I have now and converts them.

I also wonder what the round dark spot it. It looks like itís surrounded by 6 screws and has a wire coming out of it. Part of a despin unit?

And lastly, in my book, hanging off the nosecone of a sounding rocket ranks right up there with look down waveguide.
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  #22  
Old 03-31-2019, 07:21 PM
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Jerry Irvine Jerry Irvine is offline
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Hope this scale data helps.
Attached Files
File Type: pdf UteTomahawk.pdf (1.59 MB, 37 views)
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  #23  
Old 03-31-2019, 07:48 PM
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Ez2cDave Ez2cDave is offline
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Quote:
Originally Posted by aeppel_cpm
And I donít think those are the fins shown in the Tomahawk brochure I have. Hmmm...

Iím wondering if I can print up something that screws to the fins I have now and converts them.

I also wonder what the round dark spot it. It looks like itís surrounded by 6 screws and has a wire coming out of it. Part of a despin unit?

And lastly, in my book, hanging off the nosecone of a sounding rocket ranks right up there with look down waveguide.



There is dimensioned data on the 12" payload variation of the Nike-Tomahawk available.

http://cv41.org/newsletters/V18I3.pdf


I don't believe that the "round dark spot" is part of a de-spin unit. Most likely, it is some sort of sensor or, possibly, a camera of some type.

On the "standard" Nike -Tomahawk, a "yo-yo" de-spin unit is mounted between the motor and the payload section.
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  #24  
Old 03-31-2019, 10:11 PM
aeppel_cpm aeppel_cpm is offline
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Thank Jerry. Thatís the info I based my model on.

But I have leftover parts from the kitbashing. Just the right parts for a scale 12Ē payload. I have line drawings of the 12Ē payload from a period brochure - but had not seen pictures until now. Thanks Dave.

Now, a Ute Tomahawk may never have flown the 12Ē payload. Iím not sure I care. And I -DO- happen to have a Nike that the Ute nosecone/interstage should fit. So the paint scheme wonít match (my Nike is marked with the Keweenaw Range round numbers. Iím an MTU alum) but Iím not always picky.
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  #25  
Old 03-31-2019, 10:18 PM
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Ez2cDave Ez2cDave is offline
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Quote:
Originally Posted by aeppel_cpm
Thank Jerry. Thatís the info I based my model on.

But I have leftover parts from the kitbashing. Just the right parts for a scale 12Ē payload. I have line drawings of the 12Ē payload from a period brochure - but had not seen pictures until now. Thanks Dave.

Now, a Ute Tomahawk may never have flown the 12Ē payload. Iím not sure I care. And I -DO- happen to have a Nike that the Ute nosecone/interstage should fit. So the paint scheme wonít match (my Nike is marked with the Keweenaw Range round numbers. Iím an MTU alum) but Iím not always picky.


Would you please send me a copy of that brochure ?

Ez2cDave@aol.com

Thanks, in advance !

Dave F.
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  #26  
Old 04-01-2019, 09:16 AM
aeppel_cpm aeppel_cpm is offline
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Sent. and posted.
Attached Files
File Type: pdf Thiokol_TomahawkFamilyFactsheet-1.pdf (1.36 MB, 37 views)
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  #27  
Old 04-01-2019, 09:31 AM
aeppel_cpm aeppel_cpm is offline
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Quote:
Originally Posted by Jerry Irvine
Hope this scale data helps.


I did pick up some tricks from you for this build, Jerry:
How I did the boat tail.

Ute boat tail layout by Charles McGonegal, on Flickr

Ute boat tail cut by Charles McGonegal, on Flickr

You can just see in this picture that I added a short piece of 2.5" tubing (or maybe coupler) to the aft centering ring to provide more surface area to glue. It still slipped a little, so the gaps aft of the fins aren't even all the way around.

Ute fins by Charles McGonegal, on Flickr

Ute booster by Charles McGonegal, on Flickr
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  #28  
Old 04-01-2019, 04:20 PM
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Jerry Irvine Jerry Irvine is offline
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Quote:
Originally Posted by aeppel_cpm
I did pick up some tricks from you for this build, Jerry:
How I did the boat tail.
When I looked at your build photos I was thinking both booster shrouds could be done using Integrated Tube-tm and a fairly easy sport scale kit would emerge. It looked to me like your interstage reducer was a traditional shroud. If it were me and a smooth surface was a priority, i would put a traditional shroud over an IT-tm shroud for strength and stage coupling.

Jerry
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  #29  
Old 04-01-2019, 06:07 PM
aeppel_cpm aeppel_cpm is offline
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Quote:
Originally Posted by Jerry Irvine
When I looked at your build photos I was thinking both booster shrouds could be done using Integrated Tube-tm and a fairly easy sport scale kit would emerge. It looked to me like your interstage reducer was a traditional shroud. If it were me and a smooth surface was a priority, i would put a traditional shroud over an IT-tm shroud for strength and stage coupling.

Jerry



Interesting thought with the layering. Mine is foam filled.
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  #30  
Old 04-04-2019, 07:53 PM
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Quote:
Originally Posted by aeppel_cpm
Sent. and posted.


Charles,

Thank you, sir !

Dave F.
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