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Old 01-05-2007, 02:58 PM
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CPMcGraw CPMcGraw is offline
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Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
Exclamation New-ish Plan -- What a SEMROC Orion might look like

With all of the talk about the Orion of late, I thought I might whip up a quick RockSim file on this model, using SEMROC balsa components instead of the original plastic ones from Centuri. What came out was a mixed bag performance-wise. The only safe motor right now to use in this model is the Quest C6Q-5, which allows safe flight velocity in 45", thus requiring a 48" x 3/16" launch rod. The Estes C6-5 takes a whopping 63". When I used the Apogee D10-7, I finally got a set of numbers that fall into safe categories. The model requires only 26" of launch guidance, and deploys at a much milder 23 FPS. The altitude is better at just over 1200'.

What I will probably do is revise this plan for 24mm motors and see what I can get closer to safe launch and deploy numbers.

Length: 22.65"
Diameter: 2.04" (ST-20)
Fin Span: 7.34" (Uses same fin sheet as Taurus)
Weight: 3.6 oz

Ponder!
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Attached Files
File Type: rkt SEMROC Orion.rkt (65.5 KB, 271 views)
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