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I have been surprised that the booster fins and transitions differ so much from one upper stage configuration to another. |
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Ajax M5... 148.8" long... |
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ROTW: I wish! :D I'm just using line drawings found on the internet, specifically some NASA page scans by Jim Ball via Rocketry Online. I can easily change the Deacon / Cajun to use those 2.25" motors. You'll have to share the picture of that "falling sphere" NC. I'm not sure I've run across it yet... |
New Plan -- Nike-Deacon / Nike-Cajun
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So, here's my interpretation for the full-up vehicle. I'm only single-staging this one, for simplicity, and the results still look good enough for me to build and fly happily... :D
(Corrected model specs) Length: 31.68" Diameter: 1.80" (Transition, to ST-16) Fin Span: 6.00" Weight: 1.82 oz B4-4......333'......Dv 15 FPS......36" x 1/8" rod B6-4......339'......Dv 12 FPS......36" x 1/8" rod C6-5......755'......Dv 13 FPS......36" x 1/8" rod As mentioned, this represents a Nike-Ajax M5 booster, with the same Deacon or Cajun upper stage as in the single-stage design earlier. I just removed the motor mount parts and the recovery parts (and the launch lug). If I'm wrong on some of the dimensions, I can make corrections. I think these are very close even now... Enjoy! |
New Plan -- ASP
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Here's the 1/10th scale ASP, updated with the 2.25" motor mount for Carl's 13mm longshots...
Length: 16.70" Diameter: 0.65" (ST-6) Fin Span: 2.00" Weight: 0.45 oz 1/2 A3-4T......312'......Dv 7 FPS.......36" x 1/8" rod A3-4T..........666'......Dv 27 FPS......36" x 1/8" rod A3-5T..........670'......Dv 7 FPS.......36" x 1/8" rod The body tube was reduced by 0.10" to keep it correct with the scale. The ASP was 1" shorter than the Deacon and Cajun. Enjoy! |
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That's true, but I can't plan on having any 2-stage capability until we actually know if Estes is re-releasing the A10-0T. Ack, I really want to get to designing some of these in RockSim, but my program is currently bugged-out (crashes on startup following a system restore last week; I reinstalled it--somehow it still was keeping track of the days since I installed it, before the restore--but now it keeps crashing when I try to run it. I've emailed Tim, and he said he's going to have to ask his programmer about it.) Till then, I can just work out dimensions and design ideas. |
New Design -- Nike-ASP
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Here's the Nike-ASP, with a correct booster length, and a reasonable facsimile of the transition section.
Length: 31.78" Diameter: 1.64" (ST-16) Fin Span: 6.00" Weight: 1.71 oz B4-4......346'......Dv 14 FPS......36" x 1/8" rod B6-4......352'......Dv 11 FPS......36" x 1/8" rod C6-5......762'......Dv 15 FPS......36" x 1/8" rod Enjoy! |
Nike-Apache Info
From what I'm reading over on Astronautix, the Nike-ASP was not as successful as a replacement for the Nike-Cajun. The Nike-Apache was the fourth design in that series, and shared basically the same dimensions and appearance. The differences were both internal (propellant and nozzle lining), and payload container size and shape. The length of the Apache motor might have even been shorter (102" versus 106" for the ASP, and 107" for the Deacon/Cajun).
Otherwise, Carl, you could get eight models out of one set of components, just changing decals (for all eight) and fins (for the 2 ASP versions). |
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I visited the Virginia Annex of the Smithsonian Air & Space Museum in June of 2007.
There was a Nike Cajun on display. Of course, I took some pictures. ;) Bob |
Bob,
What rocket is the one that is second from the left in your first picture? It looks very much like something that could have inspired the design for the FSI Intrepid. EDIT: Actually, the third one looks rather interesting, too. Mark \\. |
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