This is one of those "what was old is new again" designs. I had the pointy Estes PNC-55BB, and I went, "*Wait!* I've got a BT-50/55 section with a transition in the middle!" So this is what happens when components collide (at *extremely* low velocities ).

I also doublechecked the materials of the components, and changed the Estes "paper" tubes to "spiral/glassine," as well as juggling parachute sizes/materials and launch lug locations until I got fairly tolerable deployment velocities.

The basic fin shape is from my MIDI-Loader upscale of Craig's Mini-Loader design, but I shrunk the fins to 75% and multiplied them from 3 to 5... just because I could. <big evil grin>

Enjoy!

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Attached Files

Needler.rkt (66.6 KB, 98 views)

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Jay Goemmer
"Centuri Guy"/"Tau Zero"
YORF Member 28
Semroc SAM #0029
NAR 86131


"I think about organizing things all the time. Never seems to happen. I find something that piques my interest and I'm off on a quest. Or a Centuri. "

--Bill Eichelberger, 02/22/2022


“Centuri fret buzz in an updated form.”
Bill “Wallyum” Eichelberger re: Estes Flutter-By
03 Sept 2014