Ye Olde Rocket Forum

Go Back   Ye Olde Rocket Forum > The Doctor is In! > Ask the Doctor
User Name
Password
Auctions Register FAQ Members List Calendar Today's Posts Search Mark Forums Read


Reply
 
Thread Tools Search this Thread Display Modes
  #21  
Old 03-09-2020, 09:35 PM
sandman's Avatar
sandman sandman is offline
Custom Cone, Kit & Decal Maker
 
Join Date: Mar 2005
Location: Way North of Detroit
Posts: 4,933
Default

Jeffry, I did these drawings years ago for a BT-80 Iris so I scaled it down for you.

I got 6.61" for the nose cone length.

On the BT-80 version the nose cone was 17.55" long plus the shoulder!
Attached Files
File Type: pdf BT 50 Iris.pdf (15.9 KB, 22 views)
__________________
"I'm a sandman. I've never killed anyone. I terminate runners when their time is up." Logan from "Logan's Run"

http://sandmandecals.com/
Reply With Quote
  #22  
Old 03-10-2020, 12:19 AM
ghrocketman's Avatar
ghrocketman ghrocketman is offline
President, MAYHEM AGITATORS, Inc.
 
Join Date: Jul 2005
Location: Michigan
Posts: 10,093
Default

Glad I was able to give you a laugh, Jeffy !
__________________
When in doubt, WHACK the GAS and DITCH the brake !!!
No DIRECT and MEASURABLE Harm=NO Foul advocate

If you are NOT FLYING LOW in the left lane, you need to GET THE #$&@ OUT of it !

Yes, there is such a thing as NORMAL
, if you have to ask, you probably aren't
!
Reply With Quote
  #23  
Old 03-10-2020, 08:20 AM
astronwolf's Avatar
astronwolf astronwolf is offline
Master Modeler
 
Join Date: Mar 2013
Location: Northeast Ohio
Posts: 783
Default

Quote:
Originally Posted by 5x7
The iris NC is 6.3:1 while the pnc-50yr is 4:43:1

Yes, this is what I was getting at. For the time and expense, why build a scale model of a poorly-executed kit of a scale model, when you can just build to scale? I agree that the Semroc BNC-50G is a better choice for profile scale than the plastic Estes nose cone. Good luck with the build... I "cloned" a Centuri IRIS kit, but made adjustments and added a few minor details to make it more of a scale model and less of a clone-of-a-kit-of-a-scale-model.
__________________
-Wolfram v. Kiparski
NAR 28643
MTMA
Contest flying, Sport flying, what's the fracking difference.....
Reply With Quote
  #24  
Old 03-10-2020, 10:31 AM
scigs30 scigs30 is offline
Master Modeler
 
Join Date: Jul 2006
Posts: 2,053
Default

Jeff,
Estes sells that nose cone in the PNC 50 pack. Or I could send you one if you like, just let me know.


https://estesrockets.com/product/00...nose-cone-5-pk/
Reply With Quote
  #25  
Old 03-10-2020, 06:25 PM
jeffyjeep's Avatar
jeffyjeep jeffyjeep is offline
Old Submariner
 
Join Date: Jan 2009
Location: Home of Wayne & Garth
Posts: 6,254
Default

Quote:
Originally Posted by scigs30
Jeff,
Estes sells that nose cone in the PNC 50 pack. Or I could send you one if you like, just let me know.


https://estesrockets.com/product/00...nose-cone-5-pk/


I actually have a plastic one already but thanks a ton anyway!
__________________
-Just in case you ever wondered, Yoda’s last name was LayHeeHoo.

-Don't mistake politeness for weakness.


NAR# 94042
SAM# 0078
Reply With Quote
  #26  
Old 03-10-2020, 06:27 PM
jeffyjeep's Avatar
jeffyjeep jeffyjeep is offline
Old Submariner
 
Join Date: Jan 2009
Location: Home of Wayne & Garth
Posts: 6,254
Default

Quote:
Originally Posted by sandman
Jeffry, I did these drawings years ago for a BT-80 Iris so I scaled it down for you.

I got 6.61" for the nose cone length.

On the BT-80 version the nose cone was 17.55" long plus the shoulder!


Thanks Gordy! You’re a prince.
__________________
-Just in case you ever wondered, Yoda’s last name was LayHeeHoo.

-Don't mistake politeness for weakness.


NAR# 94042
SAM# 0078
Reply With Quote
  #27  
Old 03-12-2020, 07:19 PM
teflonrocketry1's Avatar
teflonrocketry1 teflonrocketry1 is offline
Craftsman
 
Join Date: Aug 2007
Location: Whitehouse, Ohio
Posts: 264
Default

Gordy,

Thanks for the drawing with dimensions, it took about 3 hours to generate the 3D print I made, see attached picture.
Attached Thumbnails
Click image for larger version

Name:  IRIS NoseCone.jpg
Views: 39
Size:  1.59 MB  
__________________
Bruce S. Levison, NAR #69055
Reply With Quote
  #28  
Old 03-12-2020, 10:40 PM
5x7's Avatar
5x7 5x7 is offline
Sometimes collector
 
Join Date: May 2008
Posts: 889
Default

Quote:
Originally Posted by teflonrocketry1
Gordy,

Thanks for the drawing with dimensions, it took about 3 hours to generate the 3D print I made, see attached picture.


Wow very nice!
Reply With Quote
  #29  
Old 03-13-2020, 09:28 AM
jeffyjeep's Avatar
jeffyjeep jeffyjeep is offline
Old Submariner
 
Join Date: Jan 2009
Location: Home of Wayne & Garth
Posts: 6,254
Default

Quote:
Originally Posted by teflonrocketry1
Gordy,

Thanks for the drawing with dimensions, it took about 3 hours to generate the 3D print I made, see attached picture.


That’s a sweet cone! How much?
__________________
-Just in case you ever wondered, Yoda’s last name was LayHeeHoo.

-Don't mistake politeness for weakness.


NAR# 94042
SAM# 0078
Reply With Quote
  #30  
Old 03-13-2020, 09:39 AM
sandman's Avatar
sandman sandman is offline
Custom Cone, Kit & Decal Maker
 
Join Date: Mar 2005
Location: Way North of Detroit
Posts: 4,933
Default

Quote:
Originally Posted by jeffyjeep
That’s a sweet cone! How much?


Jeff, it only took me about ten minutes to make the same cone on the lathe.

I already shipped it to you. According to the USPS expected delivery is Saturday.

No charge.
__________________
"I'm a sandman. I've never killed anyone. I terminate runners when their time is up." Logan from "Logan's Run"

http://sandmandecals.com/
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 04:44 PM.


Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Ye Olde Rocket Shoppe © 1998-2020