11-03-2011, 07:41 PM
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BP Mafia
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Join Date: Mar 2005
Location: Ft. Thomas, KY
Posts: 8,621
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Quote:
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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?
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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 Mini Dactyl 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
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