#1
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Centering ring question.
Hi guys. I would like to put a 29mm engine mount tube into an Estes Pro Series 2" OD body tube but I don't know which centering rings to order from Semroc and/or Aerotech. The centering rings that came with the Estes Pro Series Ventris kit would be the correct size but I don't have the dimensions.
The OD of my 29mm EM tube is 1.200". I don't know the ID of the Pro Series 2" body tube because I don't have the body tubes yet. Thanks!
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#2
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My 2X Javelin is made from those tubes.
The I.D. on mine is 49mm. |
#3
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Bernard Cawley NAR 89040 L1 - Life Member SAM 0061 AMA 42160 KG7AIE |
#4
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Pretty sure 2" Pro Series tubing is just Centuri ST-20.
29mm Semroc/Centuri tubing is LT-115. You need ST-20 to LT-115 centering rings.
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When in doubt, WHACK the GAS and DITCH the brake !!! Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't ! Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY. ALL systems are GO for MAYHEM, CHAOS, TURMOIL, FIASCOS, and HAVOC ! |
#5
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ST-20 is 2” ID, PSII is 2” OD. I got 29mm to PSII 2” from Vanderburn which was bought by Launch Lab rocketry, so you could ask them. Also here from I think rocketryworks on ebay: https://www.ebay.com/itm/3246542514...7Cclp%3A2332490
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#6
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Thanks guys! That info is just what I needed.
__________________
Never trust an atom. They make up everything. 4 out of 3 people struggle with math. Chemically, alcohol IS a solution. NAR# 94042 SAM# 0078 |
#7
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https://www.erockets.biz/semroc-cen...-ra-52h-2-0ply/
"ID= 1.216 For BTH-52(LT-115) Body Tube(29mm Motor Tube) OD= 1.937 for 2" Estes Pro Tube"
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I like the unusual, the off beat, the avant-garde. No 3/4 FNC for me! |
#8
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Quote:
THAT’S the one! Thanks!
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Never trust an atom. They make up everything. 4 out of 3 people struggle with math. Chemically, alcohol IS a solution. NAR# 94042 SAM# 0078 |
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