Astron Sprite Upscale

Here's an Estes Astron Scout upscaled to a BT-80H.

29mm Power

Rear Eject

I used Bruce Levinson's Ring Fin Haack with Open Rocket to check stability.

Looks like a fun build!

 2024-11-10 CAD Model and Drawings, Rev 00

 

2024-11-14: Dog Dish Ring Fin

Spent some time perusing the isles of the local Tractor Supply today and found a dog dish to make the Ring Fin from.​

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Chucked it up in the lathe and parted the side of the bowl.​

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It's a conical shape:​

7-7/16" O.D. Front x 0.128 thick​

6-3/4" O.D. Rear x 0.113 thick​

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Of course that conical shape will be aero draggy... but no worries, it's an exhibition, not a competition.​

 

Also... updated the Open Rocket Model.

 

 

 2024-11-16  Altimeter

 

The altimeter... created a pod and placed it at the base of the rocket. Also rotated the launch lug and hid it in plain sight up against the fin.

2025-09-25 Figured it was about time I got back on this project.

I'm going with an X-Wing version, it's an old school starship modification from a long time ago, in a galaxy far, far away.

I turned the Nose Cone from Redwood, sanded the flat X-Wing contours into it, weighed the finished product and updated the Open Rocket Simulation.