View Single Post
Old 04-26-2009, 10:31 AM
Tau Zero's Avatar
Tau Zero Tau Zero is offline
Incurable SEMROC Fan
Join Date: Mar 2005
Location: Twin Falls, Idaho, USA
Posts: 2,207
Exclamation New Design -- Needler

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>


Attached Thumbnails
Click image for larger version

Name:  Needler_01.jpg
Views: 182
Size:  121.8 KB  Click image for larger version

Name:  Needler_02.jpg
Views: 104
Size:  135.5 KB  
Attached Files
File Type: rkt Needler.rkt (66.6 KB, 93 views)
Jay Goemmer
"Centuri Guy"/"Tau Zero"
YORF Member 28
Semroc SAM #0029
NAR 86131

"Your lightyears may vary."

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