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  #121  
Old 07-24-2008, 12:04 PM
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CPMcGraw CPMcGraw is offline
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Default Magic Number Update

43...

Some more of James Pierson's great designs have been added to the list, bringing the current total to 457...
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  #122  
Old 07-25-2008, 10:23 PM
James Pierson James Pierson is offline
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Join Date: Dec 2005
Location: Washington State
Posts: 654
Lightbulb New Design: Tranquility 9 Version 3

I have shown this design to a few friends and feel that it is time to release it to the public
after it had been built and test flown. I call it the Tranquility 9 and this Rocksim file is
Version 3. You could say that it's the Big Big Brother to Tranquility 1 and 7. The seven pods
that this design launches at ejection are 18 inch ST-8 tubes from Semroc that gently return to terra firma on 1 inch x 24 inch streamers.
*Note that until further tests are done I am requiring an 1/4 dia x 60 inch launch rod.

A BIG thanks goes to Carl and all at Semroc for the laser cut fins and custom parts and to John Ludwig for helping me successfully launch and recover this beast.


Enjoy and Thanks Again, JP

Tranquility 9 Version 2 3X(18mm)
Launch guide length: 60.0000 In X 1/4"dia. Rod

MOTOR.................MAX. ALTITUDE...........DEP. VELOCITY
3X B6Q-4..............232.29232 Ft.............21.7355 ft/s
3X C6Q-5..............612.68373 Ft..............8.6527 ft/s
3X C6-5.................605.58399 Ft.............11.9084 ft/s


Tranquility 9 with Paint.



ST-8 Pods and streamers loaded.



Pods deployment at ejection, in Theory.




The Video of the first launch on a clucter of 3 C6-3's. And yes, I did yell "Yea, Baby!" upon liftoff and I really did not believe it would make it off the launch pad. For once I was glad to be proven wrong .


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Last edited by James Pierson : 07-26-2008 at 01:10 AM.
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  #123  
Old 07-27-2008, 06:20 PM
James Pierson James Pierson is offline
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Join Date: Dec 2005
Location: Washington State
Posts: 654
Lightbulb New Design: Slamm Jett Version 3

Here is the second version built of another design I call the Slam Jett. Until built and
tested, I decided to hold from public viewing until the experimental wing design was proven
somewhat stable. It has flown on a C6-5 with 10-20 mph wind gusts and the result was fair.
This particluar design because of the larger than normal surface area of the wings should not be flown in winds higher that 10 mph. With winds any higher this designs suffers from wind shear at launch and will fly more horizantally off the pad than vertically. In calm or light winds it should be fine, however further flight testing will need to be completed. I have
recently added some Sirius Rocketry Decals to this bird which seems to give this design the
added fine details that it lacked with just paint. All other parts from Semroc.

Enjoy and Thanks Again, JP

James Pierson
NAR# 77907

Slam Jett Version 3 (18mm)
Launch guide length: 36.0000 In

MOTOR.................MAX. ALTITUDE...........DEP. VELOCITY
B4-4..................268.44520 Ft. ...........25.2800 ft/s
B6-4..................274.50195 Ft.............21.2842 ft/s
C6-5..................634.34383 Ft.............22.4718 ft/s
B6Q-4.................312.75502 Ft.............13.7529 ft/s


Wing Design Close Up




Full View with Decals from Sirius Rocketry




Close Up Side View with Decals

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Name:  Slam Jett  Version 3  2D Image.jpg
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  #124  
Old 07-30-2008, 08:14 PM
James Pierson James Pierson is offline
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Default New Design: Space Argosy

Here is another design I call the Space Argosy which has no pesky paper transitions to deal with. It has a vintage sci-fi retro look to it as well. This Design has also been built and test flown on a C6-5 and the flight results look as Rocksim has predicted below. If I were to built this one again however, I would leave more room in the upper ST-20 BT area from easier loading of the parachute .

Enjoy and Thanks Again, JP

James Pierson
NAR# 77907


Space Argosy (18mm)
Launch guide length: 36.0000 In

MOTOR.........MAX. ALTITUDE.......DEP. VELOCITY
A8-3............150.02756 Ft............14.2679 ft/s
B4-4............398.12520 Ft............1.1394 ft/s
B6-4............408.73043 Ft............5.8463 ft/s
C6-5............964.07529 Ft. ..........18.1910 ft/s

.
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  #125  
Old 07-31-2008, 03:49 PM
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CPMcGraw CPMcGraw is offline
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Exclamation New Plan -- Cloud Seeker

OK, not really a high-flying design, but it sounded good...

Borrowing some from the J-Loader and some from the recent Esquire, we have the Cloud Seeker. I'm really impressed with the performance of the A8-3 in this design, both in the altitude and Dv fields. All of the posted numbers are to be considered "no payload" flights, so if you choose to add a payload of some sort, you'll have to re-sim with that mass included.

Length: 18.65"
Diameter: 1.04" (ST-10)
Fin Span: 3.78"
Weight: 0.73 oz

A8-3......255'......Dv < 2 FPS......36" x 1/8" rod
B4-4......445'......Dv 13 FPS.......36" x 1/8" rod
B6-4......450'......Dv 16 FPS.......36" x 1/8" rod
C6-3......795'......Dv 27 FPS.......36" x 1/8" rod (reef the parachute!)

Enjoy!
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File Type: rkt Cloud Seeker.rkt (69.2 KB, 79 views)
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  #126  
Old 07-31-2008, 03:53 PM
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CPMcGraw CPMcGraw is offline
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Default Magic Number Update

42...
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  #127  
Old 07-31-2008, 11:35 PM
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Tau Zero Tau Zero is offline
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Talking Variation on a Theme: Space Argo-C

Quote:
Originally Posted by James Pierson
Here is another design I call the Space Argosy which has no pesky paper transitions to deal with. [SNIP] If I were to built this one again however, I would leave more room in the upper ST-20 BT area [for] easier loading of the parachute .
Jim,

I kept that in mind while I was morphing your Argosy into my twisted Argo-C version below. My solution was to use an ST-10 with an EM-10 motor mount, along with longer ST-13 and ST-20 sections. Oh, and you could wrap a Kevlar cord around the ST-10 tube between the two CR-1020's, and stick it through the front one into the parachute compartment.

*Now* I just have to wait for the SEMROCkin' folks to get back from NARAM-50 so I can order fiber CR-1013 and CR-1020 rings, for starters.


(Jim, I twisted Craig's Mini-Loader into a MIDI-Loader, so this time it was *your* turn to be tweaked. ) Leave it to me to get Number 42.


Again, a giant tip of the hat to That State with the Space Needle, from the Planet of Giant Potatoes ("Mu-Tater!"),


Cheers,
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File Type: rkt Space_Argo-C.rkt (91.5 KB, 138 views)
File Type: tif Space_Argo-C_01_B.TIF (178.7 KB, 186 views)
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  #128  
Old 08-01-2008, 12:39 AM
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CPMcGraw CPMcGraw is offline
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Default Magic Number Update

41...

And it's only August 1, so we still have plenty of time to reach 500...
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  #129  
Old 08-01-2008, 11:06 PM
James Pierson James Pierson is offline
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Thumbs up

CenturiGuy Quote:
Quote:
Jim,

I kept that in mind while I was morphing your Argosy into my twisted Argo-C version below. My solution was to use an ST-10 with an EM-10 motor mount, along with longer ST-13 and ST-20 sections. Oh, and you could wrap a Kevlar cord around the ST-10 tube between the two CR-1020's, and stick it through the front one into the parachute compartment.



Just what this design needed Jay . I also see that you have added an engine hook as well. I, also have been thinking of going back to engine hooks in my design as you have Jay. The convienence and reloading speed of an engine hook has me rethinking the tape method. Taping up motors just takes too long and if hurried can result in an ejected casing headache .
And I have also started using Kevlar shock cord attachments as I have burned through too many nylon ones lately . I need to try to remember to include them in the Rocksim files though.

Thanks for the input and redesign, JP.

James Pierson
NAR# 77907
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  #130  
Old 08-03-2008, 09:24 PM
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CPMcGraw CPMcGraw is offline
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Default New Plan -- Peregrine

Perhaps this Falcon will fly better than the other one...

This is just a slap-down throw-together of parts in RockSim, but occasionally it just works out great. Achieving just under 2000' on an 18mm motor ain't too shabby!

Length: 29.00"
Diameter: 1.04" (ST-10)
Fin Span: 3.04"
Weight: 1.72 oz

B6-4.......425'.......Dv 9 FPS.......36" x 1/8" rod
C6-5.......995'.......Dv 23 FPS......36" x 1/8" rod
D10-7......1950'......Dv 11 FPS......36" x 1/8" rod

Enjoy!


Magic number now stands at 40...
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File Type: rkt Peregrine.rkt (71.3 KB, 81 views)
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