Ye Olde Rocket Forum

Go Back   Ye Olde Rocket Forum > Work Bench > Scale & Sport Scale Rocketry
User Name
Password
Auctions Register FAQ Members List Calendar Today's Posts Search Mark Forums Read


Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 06-28-2021, 11:04 AM
ronhender ronhender is offline
Junior Rocketeer
 
Join Date: Dec 2020
Posts: 10
Default Estes Little Joe II escape tower tube size

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?
Reply With Quote
  #2  
Old 06-28-2021, 11:48 AM
ghrocketman's Avatar
ghrocketman ghrocketman is offline
President, MAYHEM AGITATORS, Inc.
 
Join Date: Jul 2005
Location: Michigan
Posts: 11,567
Default

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.
Reply With Quote
  #3  
Old 06-28-2021, 04:31 PM
ronhender ronhender is offline
Junior Rocketeer
 
Join Date: Dec 2020
Posts: 10
Default

Sorry, should have included that. It's the 1/45 scale version.
Reply With Quote
  #4  
Old 06-28-2021, 04:42 PM
jeffyjeep's Avatar
jeffyjeep jeffyjeep is offline
Old Submariner
 
Join Date: Jan 2009
Location: Home of Wayne & Garth
Posts: 6,897
Default

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?
__________________
Never trust an atom. They make up everything.

4 out of 3 people struggle with math.

NAR# 94042
SAM# 0078
Reply With Quote
  #5  
Old 06-28-2021, 05:24 PM
rocketguy101's Avatar
rocketguy101 rocketguy101 is offline
frustrated aero
 
Join Date: Sep 2006
Location: Duncan, OK
Posts: 791
Default

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.
__________________
David Stribling
NAR 18402 SR
But it is rocket science!
Get yer Barrowmans here
Reply With Quote
  #6  
Old 06-28-2021, 06:06 PM
jeffyjeep's Avatar
jeffyjeep jeffyjeep is offline
Old Submariner
 
Join Date: Jan 2009
Location: Home of Wayne & Garth
Posts: 6,897
Default

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.

NAR# 94042
SAM# 0078
Reply With Quote
  #7  
Old 06-28-2021, 06:08 PM
BEC's Avatar
BEC BEC is offline
Master Modeler
 
Join Date: Feb 2009
Location: Auburn, Washington
Posts: 3,085
Default

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.
__________________
Bernard Cawley
NAR 89040 L1 - Life Member
SAM 0061
AMA 42160
KG7AIE
Reply With Quote
  #8  
Old 06-28-2021, 06:09 PM
Earl's Avatar
Earl Earl is offline
Apollo Nut
 
Join Date: Dec 2006
Posts: 3,280
Default

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

Rocket-Brained Since 1970
Reply With Quote
  #9  
Old 06-28-2021, 06:16 PM
jeffyjeep's Avatar
jeffyjeep jeffyjeep is offline
Old Submariner
 
Join Date: Jan 2009
Location: Home of Wayne & Garth
Posts: 6,897
Default

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.

NAR# 94042
SAM# 0078
Reply With Quote
  #10  
Old 06-28-2021, 07:02 PM
jbuscaglia jbuscaglia is offline
Rusty-eyed Missile Man
 
Join Date: May 2007
Location: Hudson, MA
Posts: 174
Default

Quote:
Originally Posted by BEC
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.


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/
__________________
John Buscaglia
NAR 27366
SAM 63
CMASS Member
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump



All times are GMT -5. The time now is 03:09 PM.


Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Ye Olde Rocket Shoppe © 1998-2021