Wasn't sure what to call this one, but what the hey.

It's a two-stage design with an unusual property. The outer pods come apart and the booster comes down under four streamers tucked into the upper pods. I couldn't figure out how to add the streamers. Suggestions welcome.

Enjoy!

Under D12 engines, the model reaches 1800' with a VD of 18.44.

Attached Thumbnails

 

Attached Files

Moon Axe.rkt (126.6 KB, 84 views)

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Dale Marshall, San Antonio Texas
NAR #90990
Semroc SAM #083

BAR Since 2008
Enjoying model rocketry since 1977.
The Spotted Dragon
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Outer pods come apart?

I don't have Rocsim so I can't open the file.

Interesting design.
I added a stage coupler . The streames always show as belonging to the main body tube when I tryed to add streamers to the pods.
Bob

Attached Files

Moon Axe_rpz.rkt (130.5 KB, 68 views)

Interesting design.
I added a stage coupler . The streames always show as belonging to the main body tube when I tryed to add streamers to the pods.
Bob

I was able to add a parachute to a pod on the second stage and have it display properly.
If you change it to a streamer it displays on the booster.
Look like a possible sof6tware error.
Bob

Sorry for the double post above. I do not post very often and got confused.

Attached Files

Moon Axe_rpz_2.rkt (132.3 KB, 57 views)

Thanks, I didn't think about trying a parachute, I was frustrated with the streamer. I'll play around with it some more. I'm not completely happy with the takeoff speed.

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Dale Marshall, San Antonio Texas
NAR #90990
Semroc SAM #083

BAR Since 2008
Enjoying model rocketry since 1977.
The Spotted Dragon
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Cool design!

No, wait - way cool design!

Even awesomer!

MK

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SAM # 0011

For dlazarus6660 ...

The four outer pods span the booster into the sustainer. The top of the booster pod contains a nose block (which fits into the booster on the sustainer) with a screw eye which attaches to the streamer that's stuffed into the pod attached to the sustainer.

The idea is that when the sustainer fires, the booster falls to earth not with a tumble recovery, but with four streamers slowing it's descent - hopefully keeping the pods and fins intact.

When I get a few extra hours (yea right) I may try building this one to see what happens. I've got several in my build queue now, and three I'm painting. With a business trip next week cutting into my building time

__________________
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Dale Marshall, San Antonio Texas
NAR #90990
Semroc SAM #083

BAR Since 2008
Enjoying model rocketry since 1977.
The Spotted Dragon
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

That should read "which fits into the pod on the sustainer" in my post above.

__________________
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Dale Marshall, San Antonio Texas
NAR #90990
Semroc SAM #083

BAR Since 2008
Enjoying model rocketry since 1977.
The Spotted Dragon
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

You might want to have the two of the booster pod bulkheads extend no more than a 1/8 of an inch into to the sustainer pod. This would help with alignment. I would limit the amount of penetration so the booster does not bindup on seperation.
Bob