My Little Joe II turned into a lawn dart on it's last flight and obliterated the escape tower assembly. I ordered the replacement plastic parts from Estes, but does anyone know the tube size needed to complete the tower?

I think it is "BT-4" sized. It is smaller than BT-5 but larger than BT-3.
Unfortunately, the size is uncommon. Get Estes to send you the odd tube also.

__________________
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, and HAVOC !

Sorry, should have included that. It's the 1/45 scale version.

That's what I had assumed. It actually seems to be a BCH larger than BT5. I'll check my tube stash. If I find the correct diameter what is the length?

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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

It measures .570" OD x 0.015" wall by 4.35 long. I looked on the BMS website but did not see a match.

Estes lists it as PN 031948.

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David Stribling
NAR 18402 SR
But it is rocket science!
Get yer Barrowmans here

I’m sorry, but I don’t have one. It looks like a BT-5+ (in stock at Erockets) is a close match. The 8” length can be reduced.

__________________
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

That is an odd size....

BMS T5Plus is 0.015 larger in OD. I can't think of anyting else that close.

The new "improved" eRockets.biz site makes it impossible to even look for something there by size.

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Bernard Cawley
NAR 89040 L1 - Life Member
SAM 0061
AMA 42160
KG7AIE

Closest thing in Semroc tubes at eRockets. But it is .585 OD. Fits over a BT5. Their next size down is too small. Click on image once you are on the page to see specs.

Link: http://www.erockets.biz/bt-5-1/


Earl

Add: Just posted this message and saw BEC’s comments. Yes, very hard to find things on their new website layout.

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Earl L. Cagle, Jr.
NAR# 29523
TRA# 962
SAM# 73
Owner/Producer
Point 39 Productions

Rocket-Brained Since 1970

I think the best solution is the BT-5+. Just “fatten” the shoulders of the top cone and of the bottom base.

__________________
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

I didn't think it was possible to make it worse than the old site, but I've been proven wrong.

I did manage to eventually find their version of BT-5+. Appears to be the same as BMS, but you don't have to buy 34".

http://www.erockets.biz/semroc-body-tube-bt-5-8-0-long/

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John Buscaglia
NAR 27366
SAM 63
CMASS Member