10-29-2008, 10:50 PM
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Incurable SEMROC Fan
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Join Date: Mar 2005
Location: Twin Falls, Idaho, USA
Posts: 2,318
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Centuri "Chuter-Two" 1.48X UPSCALE!
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Originally Posted by CenturiGuy
...I bring you the 21st century version of Centuri's "Chuter-Two" (and later, the "Chuter-2"), using parts conveniently available from Semroc.
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I wasn't real happy with the deployment velocities that RockSim spit out for the 1.00X Chuter-Two, so I *didn't* leave well enough alone   and I upscaled it from ST-8 to ST-13.
I left the fin thickness at 3/32" balsa, and I also used thinner fin reinforcements (1/16" instead of 3/32"), and put them on *both* sides of the fins. (As with my first attempt at this design, there's only one parachute in this one. )
The performances (and deployment velocities) on the standard motors are *much* better (i.e., kinder and gentler) on this 1.48X upscale than on the original version.  
And I have to issue my usual parts disclaimer: The BC-1371 nose cone is *not* available from Semroc.  At least not *yet.*
(For those who *insist* on knowing, the ST-13118 is 11.75" long.)
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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
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