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Build Thread - MoonShot III Heavy

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PayLoad

I don't do spirals
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Is it just me, or does there seem to be a dearth of fins on this bird?
I'm a CG/CP guy, using minimal fins possible. I'd have no fins if I could get away with it. 115 grams of lead in nose.
 

jqavins

Joseph Avins
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Hey Long_Gone, did you mean something by that last comment that was not as sarcastic and insulting as it looks?

PayLoad, that looks like somewhere in the ballpark of a 675J90. What total impulse did you compute from the gathered data?

Is the rise time what you intended? I'm talking out my butt, but it looks quite long to me.
 

PayLoad

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I HAD to post a "Thank You" to Rocketgeek101, who printed my motor extensions, they worked perfectly, THANKS
IMG_8333.JPG
IMG_8334.JPG
 
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PayLoad

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Are these parts made from steel?
That would be a no go at a NAR or TRA launch
Dad?

Yeah, pretty much my entire experience on this build thread has been how "you can't do that" and "that's not right" and has been pretty damn discouraging.

Michael
 
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MClark

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Dad?

Yeah, pretty much entire experience here is how "you can't do that" and "that's not right" pretty damn discouraging. But the "Post a pic that makes you laugh" is still pretty good.

Michael
The safety rules were put in place for a reason. They are all posted on the NAR and TRA websites.
We have told our insurance companies and the government agencies that we will follow those safety rules.
 

PayLoad

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The safety rules were put in place for a reason. They are all posted on the NAR and TRA websites.
We have told our insurance companies and the government agencies that we will follow those safety rules.
I agree with you 100%
 

Tobor

Get your peanuts....
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Hey Payload,
Wish I was in your neck of the woods. I'd love to see this bird fly!
Btw, thx for sharing your ideas/techniques of this build. I really dig "Outside the Box" solutions.

Best wishes and plz post pics of the launch.
 

MClark

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Here is the guidance on ductile metal

Seems like the design would fit the rules, it's for integrity of the rocket and is only as much as needed. At the end it's between a discussion/agreement between the builder and the RSO



Nice design, love to see the 1st test article
Last part of metal in rockets


Revision: June 2015
The set of metals that shall meet the “ductile metal” constraint is limited to:
- Aluminum alloys
- Copper Alloys
 

ether

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good point - the NAR code does not specify the metals that meet ductile - guess one could use the scientific definition of ductile metal in that instance - glad PayLoad abides by the safety rules - never seen any stainless eyebolts in his rockets
 

jqavins

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Is the rise time what you intended? I'm talking out my butt, but it looks quite long to me.
I certainly never meant to be discouraging. I this comment was, I apologize.
The set of metals that shall meet the “ductile metal” constraint is limited to:
- Aluminum alloys
- Copper Alloys
Aw, c'mon. Pure copper is more ductile than most of it's alloys. Silver is more ductile yet, and nothing is more ductile than gold.
 
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