Tubetastic - 4 inch diameter tube fin rocket

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Aquaman33
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Tubetastic - 4 inch diameter tube fin rocket

Postby Aquaman33 » Tue Feb 08, 2022 8:38 pm

I have had a long term fascination with tube fin rockets. There is just something about the way the fly.

So I decided to build a mid power tube fin rocket designed for anything from an F composite up to a long burn H.

The body tube and fins would be made from Officeworks postal tubes with a long LOC 29mm motor mount tube. Aero Pack motor retainer and everything else 3d printed.

Nose cone ready for sanding after a long print.
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Nose cone, centering rings and fin reinforcement rings.
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Fin rings installed. Designed to protect the tube fins on landing.
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Extra long motor mount tube. Helps with deployment and holds the chute up in the nose cone.
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First dry fit.
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Dry fit with nylon bolts to help align the tube fins. Rail button at the top of the photo. Needed a stand-off to clear the inside of the tube fin.
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Paint scheme based on colours found in the shed.
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Some stripes and a vinyl decal finish the job.
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Plenty of drag.
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Nose down shot.
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Maiden flight on an F50-4.
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Open rocket said the optimum delay was 4.00 seconds and it was spot on.
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It managed to miss the huge grass field and landed on a narrow concrete path. So sustained a little damage, but nothing that a little epoxy and some paint can't fix.

Thanks to Air Command for the action shots.

User avatar
Aquaman33
Rocket Crew
Rocket Crew
Posts: 433
Joined: Tue Jul 03, 2018 6:12 pm

Re: Tubetastic - 4 inch diameter tube fin rocket

Postby Aquaman33 » Wed May 25, 2022 6:08 pm

Another good flight at the weekend.

It made it to approx 300 feet on an F32.

:D

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