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  #51  
Old 09-30-2009, 08:18 PM
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John Brohm John Brohm is offline
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Quote:
Originally Posted by blackshire
...

When you sand the Sirius Rocketry "Moldin' Oldies" resin nose cones prior to painting, what grit size sandpaper (or sanding film) do you use? Also, do acrylic paints adhere well to them? (Not having an airbrush, I'll stick with enamel spray paint cans, but other model rocketeers who have airbrushes might prefer to use acrylic paints if they'll adhere to the resin nose cones.)


Jason;

My apologies for the delay in responding; my travels find me in Toronto just now, where I swear these guys are entering an early winter (!). Next week makes up for it, for I'll be in Honolulu...

Regarding your question, I washed the resin nose cone with soap and water, and it was then wet sanded with #320 W/D, then wiped down again. Testors Flat White worked like a champ as a primer.

As a rule, I prefer enamels and lacquers; just a point of religion with me, so I can't really comment. On the other hand, my brother is an acrylic devotee (his religion declares the fumes and the clean up/thinners of solvent-based paints as completely sinful), and his work with this paint type (he's a model railroader) borders on art. I'll have to ask him if his acrylic evangelism has had the opportunity to make an outreach to the resin community.
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  #52  
Old 10-01-2009, 01:19 AM
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Quote:
Originally Posted by John Brohm
Jason;

My apologies for the delay in responding; my travels find me in Toronto just now, where I swear these guys are entering an early winter (!). Next week makes up for it, for I'll be in Honolulu...

Regarding your question, I washed the resin nose cone with soap and water, and it was then wet sanded with #320 W/D, then wiped down again. Testors Flat White worked like a champ as a primer.

As a rule, I prefer enamels and lacquers; just a point of religion with me, so I can't really comment. On the other hand, my brother is an acrylic devotee (his religion declares the fumes and the clean up/thinners of solvent-based paints as completely sinful), and his work with this paint type (he's a model railroader) borders on art. I'll have to ask him if his acrylic evangelism has had the opportunity to make an outreach to the resin community.


John, I thank you very much for this information! It will also be helpful to other model rocketeers who use the Sirius Rocketry "Moldin' Oldies" cast polyurethane resin duplicates of discontinued Centuri and Estes plastic nose cones. (We never really had a real summer to speak of in Alaska this year, and last week it suddenly vanished.)

In his book "The Art of Scale Model Rocketry," Peter Alway was very pro-acrylic (without being anti-enamel or anti-lacquer). I'm going to stick with enamel for painting resin nose cones, but acrylics do sound attractive for painting other rocket parts indoors (using a spray booth) during the winter because they have no fumes.
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Last edited by blackshire : 10-01-2009 at 01:26 AM. Reason: This ol' hoss done forgot somethin'.
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  #53  
Old 12-17-2017, 03:58 PM
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K'Tesh K'Tesh is offline
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Ok... I've read this thread, and I never found the answer...

I'm simming this up now, and I can't for the life of me find the length of the original Akela (I keep seeing the phrase "slightly longer than the Viking"). If someone could post that, I'd appreciate it.

Thanks!
Jim
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  #54  
Old 12-17-2017, 04:01 PM
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Originally Posted by K'Tesh
Ok... I've read this thread, and I never found the answer...

I'm simming this up now, and I can't for the life of me find the length of the original Akela. If someone could post that, I'd appreciate it.

Thanks!
Jim
Do you need the total length, or the body tube length? I can measure mine right now.
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http://www.lulu.com/content/paperba...an-form/8075185
http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
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  #55  
Old 12-17-2017, 04:02 PM
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Quote:
Originally Posted by blackshire
Do you need the total length, or the body tube length? I can measure mine right now.


Thanks!

I could use both actually. I haven't got to the nosecone yet, but I was sure that I could scrounge that up.

While you're at it, could you post the length of the launch lug too?
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Dreaming of making the rockets I dreamed of as a kid (and then some).

"The Guide says there is an art to flying", said Ford, "or rather a knack."
"The knack lies in learning how to throw yourself at the ground and miss."


Launching is Optional... Landing? That Depends on Trees.
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  #56  
Old 12-17-2017, 04:09 PM
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blackshire blackshire is offline
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Quote:
Originally Posted by K'Tesh
Ok... I've read this thread, and I never found the answer...

I'm simming this up now, and I can't for the life of me find the length of the original Akela (I keep seeing the phrase "slightly longer than the Viking"). If someone could post that, I'd appreciate it.

Thanks!
Jim
The Akela-1's #7 body tube is 9" long, and its PNC-76 nose cone (the exposed part, not counting the tenon [shoulder]) is 3" long (see: http://www.ninfinger.org/rockets/no...a/72cen060.html ).
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Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see:
http://www.lulu.com/content/paperba...an-form/8075185
http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com.
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  #57  
Old 12-17-2017, 04:14 PM
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K'Tesh K'Tesh is offline
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Quote:
Originally Posted by blackshire
The Akela-1's #7 body tube is 9" long, and its PNC-76 nose cone (the exposed part, not counting the tenon [shoulder]) is 3" long (see: http://www.ninfinger.org/rockets/no...a/72cen060.html ).


Thanks!

Any chance on that launch lug?
__________________
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Dreaming of making the rockets I dreamed of as a kid (and then some).

"The Guide says there is an art to flying", said Ford, "or rather a knack."
"The knack lies in learning how to throw yourself at the ground and miss."


Launching is Optional... Landing? That Depends on Trees.
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  #58  
Old 12-17-2017, 04:24 PM
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blackshire blackshire is offline
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Quote:
Originally Posted by K'Tesh
Thanks!

Any chance on that launch lug?
You're welcome. The launch lug is 2-1/4" long. I'm presuming (correctly, I hope) that the Akela-1 and the (Centuri) Viking were/are the same rocket, just with different decal sets and decor schemes.
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Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see:
http://www.lulu.com/content/paperba...an-form/8075185
http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com.
NAR #54895 SR
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  #59  
Old 12-17-2017, 04:30 PM
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Also, the Vector-V (Semroc's as well as Centuri's) used/use the same fiber (fibre, in Centuri's "fancy lingo" :-) ) fins as the Akela-1. This is an area where 3D printing could really shine--while I know that balsa substitutes for plastic nose cones look the same when sanded, sealed, and painted, they're still lighter and more easily dented, and, well...I just prefer to "replace plastic with plastic" whenever possible, when re-creating classic kits.
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Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see:
http://www.lulu.com/content/paperba...an-form/8075185
http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com.
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  #60  
Old 12-17-2017, 06:35 PM
Neal Miller Neal Miller is offline
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Quote:
Originally Posted by blackshire
Also, the Vector-V (Semroc's as well as Centuri's) used/use the same fiber (fibre, in Centuri's "fancy lingo" :-) ) fins as the Akela-1. This is an area where 3D printing could really shine--while I know that balsa substitutes for plastic nose cones look the same when sanded, sealed, and painted, they're still lighter and more easily dented, and, well...I just prefer to "replace plastic with plastic" whenever possible, when re-creating classic kits.


Jason, send me your current address, I feel Like sending you a late Christmas present.

Neal Miller still in South Florida
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