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Old 05-12-2020, 11:06 PM
RobVG RobVG is offline
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Default Too much nose weight?

If I add 3.5 oz to the nose of a current configuration I get a stability of just over 1cal. Total weight- 10.4 oz.

Is this a reasonable amount of nose weight?
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Old 05-13-2020, 12:15 AM
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BEC BEC is offline
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That must be a pretty odd configuration....what does it look like?
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Old 05-13-2020, 12:25 AM
RobVG RobVG is offline
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Quote:
Originally Posted by BEC
That must be a pretty odd configuration....what does it look like?


Space x Starship, without booster. Short and fat. BT 80 tube, just over 18" tal

Last edited by Ltvscout : 05-13-2020 at 11:27 AM.
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Old 05-13-2020, 12:31 AM
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Just the Starship, or on the Super Heavy stack?

That still seems a bit much though Starship's fins aren't very big in its current iteration, I guess.

But those forward fins....that's the issue, isn't it?
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Old 05-13-2020, 06:53 AM
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Yeah,

Bernard's right. The forward fins make that a totally believable amount of weight. Pictures would help.
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Old 05-13-2020, 11:42 AM
RobVG RobVG is offline
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I want to model just the Starship. Thought it might fly like somewhat like a Big Bertha. I had it scaled but had to add 3" to the tube and increase the fin size by 20%. It still resembles the real thing.

The super heavy doesn't really have fins and adding it would put the Starship's fins pretty far forword and move the CG rearward. Not sure if it's doable? As suggested earlier, adding a second set of clear fins helps. Rather not do that if possible.

Haven't yet figured out how to add the forwad fin set . To make it look right they need to be placed on the nose cone.

According to Openrocket simulations it'll fly. There was one warning when playing around with a few parameters just for fun.

No pics yet, only have the nose and tube. Parts are hard to find and shipping costs a fortune right now.

Last edited by RobVG : 05-13-2020 at 12:03 PM.
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