Summary

The probe completes its final circuit of the large icy giant planet. It is the 8th planet from it's home star and is inhospitable to any life, though the gasses could hold use for mining. The engineer turns from his readouts and programs the probe to proceed inward, closer to the target star. He waves his tentacles in anticipation. The next destination is the third planet, which has interesting radio signals emanating from it....

This alien probe rocket can be yours simply by printing the parts in this thing and assembling it.

To build this rocket you will need:

• 17mm of BT-80 (66mm) body tube
• 50 mm of BT-80 (66mm) body tube
• 134mm of BT-55 (33mm) body tube
• 97mm of BT-55 (33mm) body tube
• 220mm of BT-20 (18mm) body tube
• Shock cord, I used Kevlar line
• A parachute (15" should suffice)
• The parts in this design.

Please note that the lengths of body tube in this design are derived from the very scientific method of "whatever was laying on my desk at the time" so feel free to vary the design if you like. The 17mm section of BT80 fits nicely on the bottom part of the fin unit, so I'd probably stick close to that size, but the upper 50mm section already sticks above the fins. You probably DO want to use longer sections of BT55 and BT20 just to push the nose higher. I printed the nose hollow then needed to add about 11g of weight to balance it.

All told it's a little above Estes 113g weight for launch on a C6-3, but as the below video will show, it flew just fine.

Video of maiden flight:
https://www.youtube.com/watch?v=Is5KrtqzEoM