Ye Olde Rocket Forum

Go Back   Ye Olde Rocket Forum > The Golden Age of Model Rocketry > Model Rocket History
User Name
Password
Auctions Register FAQ Members List Calendar Today's Posts Search Mark Forums Read


Reply
 
Thread Tools Search this Thread Display Modes
  #11  
Old 07-05-2015, 09:41 AM
dannymrmissile dannymrmissile is offline
forgiveness is indeed divine
 
Join Date: Oct 2011
Location: NC
Posts: 331
Default This Is All Bt- 40

Everything here is BT 40. The steel ruler is all I had & may mess up the pics. Let me know what else you need, Bt 30s too? Danny BTW-this is a 16 inch ruler.
Attached Thumbnails
Click image for larger version

Name:  DSC00260.JPG
Views: 60
Size:  144.7 KB  Click image for larger version

Name:  DSC00261.JPG
Views: 27
Size:  142.3 KB  Click image for larger version

Name:  DSC00263.JPG
Views: 39
Size:  157.0 KB  Click image for larger version

Name:  DSC00264.JPG
Views: 33
Size:  141.6 KB  Click image for larger version

Name:  DSC00265.JPG
Views: 41
Size:  141.5 KB  
__________________
Always give a stranger a chance, or he will forever remain, a stranger
Reply With Quote
  #12  
Old 07-05-2015, 09:43 AM
dannymrmissile dannymrmissile is offline
forgiveness is indeed divine
 
Join Date: Oct 2011
Location: NC
Posts: 331
Default Bt-40

More
Attached Thumbnails
Click image for larger version

Name:  DSC00270.JPG
Views: 23
Size:  144.2 KB  Click image for larger version

Name:  DSC00269.JPG
Views: 28
Size:  154.0 KB  Click image for larger version

Name:  DSC00268.JPG
Views: 20
Size:  139.8 KB  Click image for larger version

Name:  DSC00267.JPG
Views: 18
Size:  103.5 KB  Click image for larger version

Name:  DSC00266.JPG
Views: 18
Size:  147.6 KB  
__________________
Always give a stranger a chance, or he will forever remain, a stranger
Reply With Quote
  #13  
Old 07-05-2015, 09:50 AM
dannymrmissile dannymrmissile is offline
forgiveness is indeed divine
 
Join Date: Oct 2011
Location: NC
Posts: 331
Default

Quote:
Originally Posted by Joe Shockcord
The Sky Bird uses a conical nose cone that slips over the body tube. That type of nose cone is still used on firework rockets today.

I make regular trips up I-75 and I befriended a fireworks shop owner on the way who I got turned on to model rocketry by bringing him a starter kit. On one visit I asked about buying some rockets because I wanted to get some of those nose cones and he gave me a bag of the same nose cones in various sizes. He said they fall off the rockets easily and he was tired of picking them up off the floor. The smaller ones fit BT-20 well but the larger ones either slip into a BT-50 or are equal diameter, so yeah, it seems they are still made the same sizes.

If you use the smaller BT-20 size be careful not to push the cone too far on the tube, as it will crush the tube edge and seat crooked.

The WHITE ones Came with all the rest of all this stuff from an old hobby store I bought out in the 80s. They are Vintage Early ones Estes sold .
__________________
Always give a stranger a chance, or he will forever remain, a stranger
Reply With Quote
  #14  
Old 07-05-2015, 10:15 AM
dannymrmissile dannymrmissile is offline
forgiveness is indeed divine
 
Join Date: Oct 2011
Location: NC
Posts: 331
Default Pics

Here's pics from camera. Done all I can unless you want more--let me know. Hope all this helps, Danny.
Attached Thumbnails
Click image for larger version

Name:  DSC00265.JPG
Views: 41
Size:  147.2 KB  Click image for larger version

Name:  DSC00264.JPG
Views: 34
Size:  146.2 KB  Click image for larger version

Name:  DSC00263.JPG
Views: 27
Size:  142.4 KB  Click image for larger version

Name:  DSC00261.JPG
Views: 39
Size:  139.1 KB  
__________________
Always give a stranger a chance, or he will forever remain, a stranger
Reply With Quote
  #15  
Old 07-05-2015, 10:16 AM
dannymrmissile dannymrmissile is offline
forgiveness is indeed divine
 
Join Date: Oct 2011
Location: NC
Posts: 331
Default Pics

2 more
Attached Thumbnails
Click image for larger version

Name:  DSC00260.JPG
Views: 42
Size:  115.7 KB  Click image for larger version

Name:  DSC00262.JPG
Views: 38
Size:  152.0 KB  
__________________
Always give a stranger a chance, or he will forever remain, a stranger
Reply With Quote
  #16  
Old 07-05-2015, 02:03 PM
stefanj stefanj is offline
Master Modeler
 
Join Date: Mar 2005
Location: Hillsboro, OR
Posts: 2,613
Default

Firefox sells a body tube that is dimensionally the same as a BT-40, but spiral wound.

Unfortunately some stupid regulation prevents them from shipping it in decent lengths. I can understand why convolute wound tube has those rules, but this isn't something you'd use to make fireworks.

Until that scotched my order, I was set to put together a couple of dozen models based on those Design Book plans.
__________________
NAR #27085 - Oregon Rocketry - SAM
Reply With Quote
  #17  
Old 07-05-2015, 08:54 PM
mojo1986's Avatar
mojo1986 mojo1986 is offline
Master Modeler
 
Join Date: Mar 2005
Location: Kingston, CANADA
Posts: 1,775
Default

Here's an early fin unit to fit a BT-40. I also have one of the early spin fin units around somewhere, and will try to find it if there's any interest.

Joe
Attached Thumbnails
Click image for larger version

Name:  IMG_0700.JPG
Views: 28
Size:  1.36 MB  Click image for larger version

Name:  IMG_0701.JPG
Views: 20
Size:  1.30 MB  Click image for larger version

Name:  IMG_0702.JPG
Views: 21
Size:  1.16 MB  Click image for larger version

Name:  IMG_0703.JPG
Views: 21
Size:  896.0 KB  
Reply With Quote
  #18  
Old 07-05-2015, 11:22 PM
gpoehlein's Avatar
gpoehlein gpoehlein is offline
Paper Rocketeer
 
Join Date: Mar 2005
Location: Evansville, Indiana
Posts: 1,181
Default

Fantastic, guys - this is exactly what I was hoping to see! As soon as I get a chance, I'll try to to a 3D render of the fin can and nose cones for printing. I can't do the actual printing right now since my printer only handles PLA - nose cones would be rough but usable, but I'm afraid the motor exhaust would war a PLA fin can. Won't have a printer capable of printing ABS until early next year.
__________________
Greg Poehlein

Member of Launch Crue - http://launchcrue.org/

Hint #1: Do not use magician's flash paper for recovery wadding!

Hint #2: Clean your shoes after flyin' in that cow pasture - that ain't no dirt clod on the sole!
Reply With Quote
  #19  
Old 07-07-2015, 12:46 AM
dannymrmissile dannymrmissile is offline
forgiveness is indeed divine
 
Join Date: Oct 2011
Location: NC
Posts: 331
Default mail

Quote:
Originally Posted by gpoehlein
Fantastic, guys - this is exactly what I was hoping to see! As soon as I get a chance, I'll try to to a 3D render of the fin can and nose cones for printing. I can't do the actual printing right now since my printer only handles PLA - nose cones would be rough but usable, but I'm afraid the motor exhaust would war a PLA fin can. Won't have a printer capable of printing ABS until early next year.

I can Mail you copies of these papers if you need them,,, just ask & give address,,,, Danny.
__________________
Always give a stranger a chance, or he will forever remain, a stranger
Reply With Quote
  #20  
Old 07-07-2015, 10:40 AM
Royatl's Avatar
Royatl Royatl is offline
SPEV/Orion wrangler
 
Join Date: Mar 2005
Location: Atlanta, GA
Posts: 2,294
Default

Quote:
Originally Posted by stefanj
Firefox sells a body tube that is dimensionally the same as a BT-40, but spiral wound.

Unfortunately some stupid regulation prevents them from shipping it in decent lengths. I can understand why convolute wound tube has those rules, but this isn't something you'd use to make fireworks.

Until that scotched my order, I was set to put together a couple of dozen models based on those Design Book plans.


You could see if e-Rockets has some Semroc BT-40 equiv. left (or if they're having more made for Aerobee-Hi kits). I bought a few from Sheryl a few months before she sold.
__________________
Roy
nar12605
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 10:01 PM.


Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Ye Olde Rocket Shoppe 1998-2019