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  #1  
Old 11-03-2011, 07:37 PM
bobdros bobdros is offline
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Join Date: Feb 2006
Posts: 79
Default Need Advice for Upscale Groove Tube

I finally flew my Centuri Groove Tube from 1970-something. What a great launch! I did a search for upscale Groove Tubes and found some high powered upscales but I didn't want something that challenging. Excelsior has decals but I wasn't sure how big the actual rocket would be.

I'd probably want to make something a bit bigger that would take a D engine but I'm not sure about the parts to get get. Any suggestions?
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  #2  
Old 11-03-2011, 07:44 PM
Tau Zero's Avatar
Tau Zero Tau Zero is offline
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Location: Twin Falls, Idaho, USA
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Thumbs up Wallyum's BT-56/ST-13 Groove Tube 1.76 upscale

Quote:
Originally Posted by bobdros
I finally flew my Centuri Groove Tube from 1970-something. What a great launch! I did a search for upscale Groove Tubes and found some high powered upscales but I didn't want something that challenging. Excelsior has decals but I wasn't sure how big the actual rocket would be.

I'd probably want to make something a bit bigger that would take a D engine but I'm not sure about the parts to get get. Any suggestions?
This should get you where you want to go:

http://www.rocketreviews.com/scratc...chelberger.html


You're welcome.
__________________
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
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  #3  
Old 11-03-2011, 08:35 PM
A Fish Named Wallyum's Avatar
A Fish Named Wallyum A Fish Named Wallyum is offline
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Quote:
Originally Posted by CenturiGuy
This should get you where you want to go:

http://www.rocketreviews.com/scratc...chelberger.html


You're welcome.

Dangit! You beat me to it!
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Bill Eichelberger
NAR 79563

http://wallyum.blogspot.com/

I miss being SAM 0058

Build floor: Centuri Bulldog AGM-83A Centuri Design Contest F-150 Hurricane

In paint: Estes Air Commander, F-22 Air Superiority Fighter. Long Tom, Solar Flare Semroc Cyber III, Excalibur, Firefly

Ready to fly: Estes Warp II
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  #4  
Old 11-03-2011, 08:38 PM
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gpoehlein gpoehlein is offline
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Location: Evansville, Indiana
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The one I just finished building (ready for paint now) is BT-60 and is a kit bashed Mean Machine. You end up with just a little tubing left over (you can get three tube fins from one 18" length). I put a 3.75" 24mm motor mount in it so i can fly it on E9s and, using a spacer, 24mm AT reloads. I have a build thread over on TRF.

Greg
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  #5  
Old 11-03-2011, 08:41 PM
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A Fish Named Wallyum A Fish Named Wallyum is offline
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Quote:
Originally Posted by bobdros
I finally flew my Centuri Groove Tube from 1970-something. What a great launch! I did a search for upscale Groove Tubes and found some high powered upscales but I didn't want something that challenging. Excelsior has decals but I wasn't sure how big the actual rocket would be.

I'd probably want to make something a bit bigger that would take a D engine but I'm not sure about the parts to get get. Any suggestions?

BT-56 tube and nose cone. I believe they're an original Centuri part and readily available from placed like Hobbylinc. http://www.hobbylinc.com/htm/est/est303164.htm Centering rings and internals would just be standard rings that fit the BT-55. Semroc should be able to help you with the BT-56 tubes and motor mount parts. Give a thought to going with an E motor. You can always use an adapter for C and D flights.
DON'T FORGET THE NOSE WEIGHT!!!!
__________________
Bill Eichelberger
NAR 79563

http://wallyum.blogspot.com/

I miss being SAM 0058

Build floor: Centuri Bulldog AGM-83A Centuri Design Contest F-150 Hurricane

In paint: Estes Air Commander, F-22 Air Superiority Fighter. Long Tom, Solar Flare Semroc Cyber III, Excalibur, Firefly

Ready to fly: Estes Warp II
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  #6  
Old 11-03-2011, 10:31 PM
Tau Zero's Avatar
Tau Zero Tau Zero is offline
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Join Date: Mar 2005
Location: Twin Falls, Idaho, USA
Posts: 2,284
Talking "Thank you, Komrade Beel..."

Quote:
Originally Posted by A Fish Named Wallyum
Dangit! You beat me to it!
(Russian accent) "Is because I am beeg fan, for many years."
__________________
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
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  #7  
Old 11-03-2011, 10:43 PM
A Fish Named Wallyum's Avatar
A Fish Named Wallyum A Fish Named Wallyum is offline
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Quote:
Originally Posted by CenturiGuy
(Russian accent) "Is because I am beeg fan, for many years."

That was a cool rocket, and Greg's build got me thinking about doing another one, possibly on a BT-70 scale. Lots of other irons in lots of other fires at the moment, but someday this winter.
__________________
Bill Eichelberger
NAR 79563

http://wallyum.blogspot.com/

I miss being SAM 0058

Build floor: Centuri Bulldog AGM-83A Centuri Design Contest F-150 Hurricane

In paint: Estes Air Commander, F-22 Air Superiority Fighter. Long Tom, Solar Flare Semroc Cyber III, Excalibur, Firefly

Ready to fly: Estes Warp II
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  #8  
Old 11-04-2011, 07:55 AM
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mn-rocketry mn-rocketry is offline
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I wrote two articles for our club newsletter last year on cloning and upscaling the Groove Tube.

See,
http://www.masa-rocketry.org/planet..._13-Issue_2.pdf
and
http://www.masa-rocketry.org/planet..._13-Issue_5.pdf
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  #9  
Old 11-04-2011, 10:31 PM
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Tau Zero Tau Zero is offline
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Join Date: Mar 2005
Location: Twin Falls, Idaho, USA
Posts: 2,284
Talking

Quote:
Originally Posted by mn-rocketry
I wrote two articles for our club newsletter last year on cloning and upscaling the Groove Tube.

See,
http://www.masa-rocketry.org/planet..._13-Issue_2.pdf
and
http://www.masa-rocketry.org/planet..._13-Issue_5.pdf
Thanks, Alan! Nicely done!

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
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  #10  
Old 11-05-2011, 07:17 PM
bobdros bobdros is offline
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Join Date: Feb 2006
Posts: 79
Default

That's what I'm looking for! I love the upscale PDF! I'll have to take a look to see what parts I have to get and get the decals from Excelsior.

The original was impressive on a B6-4. A D or E engine would be an AWESOME launch!
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