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!

.

Attached Thumbnails

   

Attached Files

Needler.rkt (66.6 KB, 98 views)

__________________
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

Good design job with the Needler Jay and wow with the .8 deploymant velociry on the B6-4. Some day you are going to have to clue me in on the Screen Shots that you have been doing. They seem to be a real time saver for posting the flight specs info.

Another good design Jay.

James Pierson
NAR# 77907

James, to make a screen shot, just hit the "Prt Scrn" button on your keyboard to copy whatever is shown on your screen to the clipboard. Then open Paint or another graphics program and do Edit/Paste, and then save it as a jpg file.

__________________
John Thro, NAR #84553 SR
I was too old when I started! Now I'll *never* become a BAR!

John, that was the D-powered Black Brant II, #1958.

But unless one has slipped through the cracks, I don't think there was ever another kit using that cone.

(John, Sorry! I hit the "Edit" button again instead of the "Quote" button... This is getting annoying! Craig...)

__________________
John Thro, NAR #84553 SR
I was too old when I started! Now I'll *never* become a BAR!

John,

You can get two of the pointy PNC-55BB's in the Estes PNC-55 nose cone package, along with two PNC-55AC (Bullpup) nose cones. That's where I got mine.


Cheers,

__________________
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

Jay,

All right, now you have done it!

I am absolutely going to HAVE to build this design, and in all likelihood, I am going to have to build a bunch of them, just because they look so cool.

I'll have to put them together with my Vaqueros, in the section that I had set aside for my future TZ's. Because of that, I won't have any room for the latter, so I will have to expand. Grrr...

I have no one but YOU to blame for this!



MarkII

P.S.: Wait, what's that? You have another new design posted? Uh oh...

__________________
SAM # 0011

Sure there was. An upscale Estes Rogue. An upscale Satellite Interceptor. An upscale WAC Corporal.
Oh, you mean kits.

__________________
Bill Eichelberger
NAR 79563

http://wallyum.blogspot.com/

I miss being SAM 0058

Build floor: Centuri Design Contest F-150 Hurricane Estes - Low Boom SST Semroc - Marauder, Shrike, SST Shuttle

In paint: Canaroc Starfighter Scorpion Estes F-22 Air Superiority Fighter, Multi-Roc, Solar Sailer II Semroc Cyber III

Ready to fly: Estes - Solar Sailer II Semroc - Earmark, Groonie Der V 1/2

Hmm. Tau Zero. *Expand.* (calculating furiously) "If I upscale the ST-7 to an ST-10, then I would need, um... Okay, I'm gonna have to tweak the inner fins, but I could substitute a BT-70 for the ST-16 ring fin, and..." (looking up) "What?!? Did I say that out loud?"


(soothing Phil Hartman voice) "Yes, well, we all have our people to blame. I mean, 'inspirations.'"


Chuckling,

__________________
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

Bill, what I meant was the Black Brant was the only stock Estes kit that used it. To my knowledge (admittedly fragile, at best) Estes never used the 55BB again, while they did use the 50BB on several kits (they're still using that one today...).

Here on BARCLONE, we've used the 55BB at least once. I used it back in 2003 to build a BBIII. Those designs you've mentioned would be great upscales to post here. Have you worked them up yet?

__________________
Craig McGraw

BARCLONE Rocketry -- http://barclone.rocketshoppe.com
BARCLONE Blogsite -- http://barclone.wordpress.com
BARCLONE Forum -- BARCLONE Forum

BARs helping BARs

SAM 0044
AMA 352635

"An upscale Estes Rogue."

http://www.rocketreviews.com/review...e_upscale.shtml


"An upscale Satellite Interceptor."

http://www.rocketreviews.com/review...terceptor.shtml



"An upscale WAC Corporal." (Okay, two out of three ain't bad. Here's the 1.00X Estes kit):

http://www.rocketreviews.com/review..._corporal.shtml


Cheers,

__________________
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