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  #351  
Old 04-24-2006, 09:52 PM
A Fish Named Wallyum's Avatar
A Fish Named Wallyum A Fish Named Wallyum is offline
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Quote:
Originally Posted by CenturiGuy
Bill, if I could manage to keep a straight face, I'd say, "Them's *fightin'* words" (what, with me being a native Idahoan, and all)... but I'll just have to admit my initial response was,

ROTFLOL!!!


--Jay


Feel free to make a horse joke at my expense.
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Bill Eichelberger
NAR 79563

http://wallyum.blogspot.com/

I miss being SAM 0058

On the build floor: Centuri Stellar Hercules, Semroc SLS Scorpion, Semroc Squire, RDC V-Max

Ready to fly: Canaroc Green Hornet, Estes Astron Farside X, FSI Eos, FRW Magnum Spartan, Centuri Stellar StarLifter, Estes World Federation Star Probe, Estes Astron Apogee
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  #352  
Old 04-24-2006, 10:22 PM
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CPMcGraw CPMcGraw is offline
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Quote:
Originally Posted by CenturiGuy
Does that mean the number has doubled in the last year?


For the most part, yes. You, James, and now Chris, have contributed quite a few designs to that number. I've actually got a bit to catch up, posting everyone's stuff to BARCLONE. Scott has an update to YORS and YORP scheduled ahead of BARCLONE, and I've still got an Extended Kit List update to finish as soon as YORP is done, meaning there are still a few that haven't been sent up to the site yet. We've had a bit of an explosion in designs this past year, which is why I was so excited.

I'm still trying to put together a catalog of all our designs, trying to make it look like some of the catalogs of the past. The new BARCLONE catalog has as many designs in it as a mid-1970's Estes catalog, which sends a tingle down my spine thinking about it. My secret dream is one day taking BARCLONE into the kit business, and all of these designs give me a lot to choose from.

It is just a dream right now, however...
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  #353  
Old 04-25-2006, 12:34 AM
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Tau Zero Tau Zero is offline
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Location: Twin Falls, Idaho, USA
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Exclamation Update: "Mars Voyager" design

Quote:
Originally Posted by CenturiGuy
I'll have to revise this post later to add a parts list. All components are Semroc
Update from http://forums.rocketshoppe.com/show...8&postcount=309


Mars Voyager (Semroc parts list)

BC-2032 Nose cone
ST-2060 Body tube
2 - LL-320 Launch lugs
4 ST-530 Body tubes
ST-10120 Body tube -- 12" L, 3.0" inside PR-1020, ST-2060
PR-1020 Paper Reducer (Transition)** -- 1.5" L
2 - CR-1020 Centering rings**
EM-710 Engine mount (protrudes 0.125")
Includes:
* ST-730 Body tube
* TR-7 Thrust ring (Engine block)
* EH-28 Engine hook,
* 2 - CR-710 Centering rings
CP-16 Parachute**
Kevlar thread
Elastic cord
Fin set -- 1/8" balsa
Launch lug standoff -- 1/8" balsa
___

**Not all parts available from Semroc yet.


Motor / Altitude / Ejection Velocity

18mm mount (standard)
C6-3 -- 418 ft. -- 5 fps

24mm mount (mod)
C11-3 -- 371 ft. -- 18 fps
D12-3 -- 659 ft. -- 28 fps
E9-4 -- 1030 ft. -- 7 fps


For pictures, see URL above.


Cheers,

--Jay
Attached Files
File Type: rkt MarsVoyager.rkt (78.9 KB, 147 views)

Last edited by CenturiGuy : 04-25-2006 at 11:00 PM.
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  #354  
Old 04-25-2006, 01:06 PM
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CPMcGraw CPMcGraw is offline
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Quote:
Originally Posted by CenturiGuy
PR-1020 Paper Reducer (Transition)** -- 1.5" L

CP-16 Parachute**


**Not all parts available from Semroc yet.


Jay,

Just substitute 2 CPK-12s for that single CPK-16...

Here's the pattern for the paper reducer...

(Be sure to check the size and let me know. I'm basing this on what RS said about the diameter of the large tube...)
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  #355  
Old 04-25-2006, 11:08 PM
Tau Zero's Avatar
Tau Zero Tau Zero is offline
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Cool "Beefy" Parachutes

Quote:
Originally Posted by CPMcGraw
Just substitute 2 CPK-12s for that single CPK-16...
Nah. I'd be concerned about tangling, so I'd probably go this route instead:

"Recovery Technologies" in Glendale, AZ (a suburb of Phoenix!)
http://64.177.74.25/index.html

http://www.rocketparachutes.com/prices.html
16" Master parachute (1.1 oz Ripstop Nylon) $8.00


Quote:
Here's the pattern for the paper reducer...

(Be sure to check the size and let me know. I'm basing this on what RS said about the diameter of the large tube...)
That *looks* pretty close. (Those diameters should be 1.04" and 2.04".)

BTW, I forgot to mention that the CR-1020 centering rings aren't available yet.
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  #356  
Old 04-26-2006, 11:07 PM
James Pierson James Pierson is offline
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Lightbulb New Design: Hammer Head

Somewhat of a strange design, but the ramjet head seem to work ok as far as preformance.
I aslo really like this fin shape however it is not very practical, especially during a hard landing.

Thanks Again and Enjoy, JP

James Pierson
NAR# 77907
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  #357  
Old 04-26-2006, 11:56 PM
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CPMcGraw CPMcGraw is offline
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Quote:
Originally Posted by James Pierson
Somewhat of a strange design, but the ramjet head seem to work ok as far as preformance.
I aslo really like this fin shape however it is not very practical, especially during a hard landing.

Thanks Again and Enjoy, JP

James Pierson
NAR# 77907


James,

Try limiting this one to just 13mm A3-4T motors, and I think you'll find it has more than enough performance. I just simmed it to 414', with a Dv of 4.2 FPS. That's fully 100' better than the Quest A6 gets.

The 1/2A3-2T gets you to 144', with a Dv of 24 FPS. High, but still acceptable.

Also, try using a 10" parachute to recover with. With the reduced motor weight, you can afford to reduce the nose weight a little. A 10" will fit inside that BT-20 a little looser than the full 12".

This fin pattern might be another that could benefit from some of Carl's laser-cut paper fins, using his centering ring material. With paper fins, the Dv on the A3-4T drops to 2 FPS.

With the 13mm motor, this qualifies for "Schoolyard Sounder" status...

Keep up the great design work!
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  #358  
Old 04-29-2006, 02:00 PM
James Pierson James Pierson is offline
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Lightbulb New Design: Cosmic Dart

Craig, it sounds like you have already tweaked a mini version of the Hammer Head so by all means please post it. And thanks for the tweaking.

Here is another design I call the Cosmic Dart. Playing with transition in Rocksim can sometimes be painful.

Enjoy and thanks Again, JP

James Pierson
NAR#77907
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  #359  
Old 05-02-2006, 09:44 PM
James Pierson James Pierson is offline
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Default New Design: Stellar Starfighter

This one kinda looks like a Scorpius slammed into Interceptor. And as Forest Gump once said " That bout all I have to say bout that"

Thanks and Enjoy, JP

James Pierson
NAR# 77907
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  #360  
Old 05-02-2006, 11:33 PM
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CPMcGraw CPMcGraw is offline
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Quote:
Originally Posted by James Pierson
This one kinda looks like a Scorpius slammed into Interceptor. And as Forest Gump once said " That bout all I have to say bout that"

Thanks and Enjoy, JP

James Pierson
NAR# 77907


Sigh...

Another project to build...

Nice design, James.
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