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  #111  
Old 07-16-2008, 03:59 PM
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CPMcGraw CPMcGraw is offline
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Exclamation New Plan -- Iapetus

Borrowing something from James Pierson here...

This design is "Saturn-like", with similarities to JP's Tranquility models. I'm using smaller tank tubes (and more of them), along with a 24mm mount for taking an E9-6. More powerful RMS-type motors could also be fitted with the proper delays, though I haven't simulated them.

The D12-5 has too high a Dv (over 30 FPS), so don't use it.

E9-6......1700'......Dv 19 FPS......48" x 3/16" rod

Important note: Yes, the tank tubes have to be trimmed just a little to fit them onto the ST-9 core tube. Cut a wedge out of each tube to allow the tanks to fit closer to the core, and so that all 10 fit inside the ST-16 tubes. Since the tank tubes are just for show and are not functional, they should also be plugged at the top to prevent deployment gasses from escaping.

Enjoy!
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Last edited by CPMcGraw : 07-16-2008 at 04:34 PM.
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  #112  
Old 07-16-2008, 04:27 PM
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CPMcGraw CPMcGraw is offline
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The number is now 52 before we cross 500...
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  #113  
Old 07-16-2008, 07:33 PM
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Ltvscout Ltvscout is offline
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Quote:
Originally Posted by CPMcGraw
Borrowing something from James Pierson here...

This design is "Saturn-like", with similarities to JP's Tranquility models. I'm using smaller tank tubes (and more of them), along with a 24mm mount for taking an E9-6. More powerful RMS-type motors could also be fitted with the proper delays, though I haven't simulated them.

Cool! I was going to say more "Recruiter" like.
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  #114  
Old 07-17-2008, 10:50 AM
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CPMcGraw CPMcGraw is offline
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The blog now has a long list of "In The Wild" BARCLONEs, meaning those designs which have actually been built and flown. Right now, I'm adding a bunch of James Pierson's designs to this list. His collection of flown designs is about as long as (if not longer than) mine.

I'm still looking for folks to let me know if they've built a BARCLONE and flown it, so that I can add it to this special list.
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  #115  
Old 07-18-2008, 02:11 PM
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CPMcGraw CPMcGraw is offline
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Exclamation New Plan -- Rapier

Staying in the ST-8 "Schoolyard Sounders" series for a while longer...

This is a simple, high-performance design for 13mm A3-4 motors. It provides great altitude (400') with very low Dv numbers (less than 5 FPS) while still looking sharp and stylish.

Length: 17.453"
Diameter: 0.908" (ST-8)
Fin Span: 3.88"
Weight: 0.9 oz

A3-4T......401'......Dv 5 FPS (highest of 10 sims).......36" x 1/8" rod
A3-4T......402'......Dv 0.6 FPS (lowest of 10 sims)......36" x 1/8" rod

Enjoy!
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  #116  
Old 07-18-2008, 02:13 PM
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CPMcGraw CPMcGraw is offline
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The magic number is now 51...

There are several of James Pierson's designs that haven't been added, so this number is likely to change.

JP, you need to clean out your PM box...
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  #117  
Old 07-18-2008, 08:05 PM
James Pierson James Pierson is offline
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Red face

CPMcGraw
Quote:
JP, you need to clean out your PM box...


I did, I did. try to resend them .

Thanks, Sorry, JP.

James Pierson
NAR# 77907
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  #118  
Old 07-19-2008, 10:40 PM
James Pierson James Pierson is offline
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Lightbulb New Design: Smarty

Here is a design that shows my rethinking of the 13mm powered design. I am keepimg them smaller and lightwieght and using the ST-10 tube which is much easier to pack and recovery device in. I hope to come up with some good variations of this basic design in the months to come. This particular Smarty design can be recovered with either an streamer and/or parachute depending on your launch field conditions.

Enjoy and Thanks Again, JP

James Pierson
NAR# 77907

Smarty (13mm)
Launch guide length: 36.0000 In

MOTOR.................MAX. ALTITUDE...........DEP. VELOCITY
1/2A3T-4..............238.78839 Ft.............18.9038 ft/s
A3T-4.....................568.31037 Ft.............19.7759 ft/s
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  #119  
Old 07-22-2008, 10:09 AM
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CPMcGraw CPMcGraw is offline
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Default Magic Number Update

50...
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  #120  
Old 07-23-2008, 09:35 PM
James Pierson James Pierson is offline
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Lightbulb New Design: The Ballista 2

Here is another design that keep growing over the months of development. I think it started out as a small lander and just kept growing into a sleek, long design. And yet, once again, that Tau nose cones really finishes off this bullet like design. The split upper and lower launch lug method I have been using seem to work well when the CG is in an difficult place. Also seems to be a good method to help hide those ugly launch lug stand-off fins.

FYI: The numbers after the design name is just for me keeping track on all the designs on what version I am working on and like the best.

Enjoy and Thanks Again, JP

James Pierson
NAR# 77907

The Ballista (18mm)
Launch guide length: 36.0000 In

MOTOR.................MAX. ALTITUDE...........DEP. VELOCITY
B4-4..................336.85235 Ft.............14.0138 ft/s
B6-4..................342.88691 Ft..............9.8087 ft/s
C6-5..................743.91689 Ft.............13.7583 ft/s

.
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