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
  #1  
Old 07-27-2024, 11:31 AM
bzzh8c bzzh8c is offline
Junior Rocketeer
 
Join Date: Jul 2024
Posts: 2
Default Classic Cherokee-D fin question - is it me??

Greetings!

Attached is a picture from 1974 of me launching my Cherokee-D, which I am looking to find on eBay and build once again. I shook my head when I found some listings but once again saw the shape of the balsa fins did not match (at least to me!) the picture of the kit on the front card.

Also in the picture is some screenshots comparing the two shapes from a recent eBay posting. I remember decades ago trying to orient them so they looked like the picture, but the forward and trailing edges were sloped the same direction, whereas the ones on the kit picture are opposite! Is it me?

Here's the pics on my fb page, let me know if you can't see them

https://scontent.fdet2-1.fna.fbcdn.... 3Q&oe=66AAF6A9


Todd
Reply With Quote
  #2  
Old 07-27-2024, 12:03 PM
rocketguy101's Avatar
rocketguy101 rocketguy101 is offline
frustrated aero
 
Join Date: Sep 2006
Location: Duncan, OK
Posts: 848
Default

The early Cherokee-D had two-piece fins to fit the pattern on a narrower sheet of balsa. Later versions used a wider sheet and the fin was one piece. The pattern from my old kit was a two piece fin.

The k-47 scan is from JimZ plans site showing the wider balsa sheet.
Attached Thumbnails
Click image for larger version

Name:  CherokeeD_FinPatternDMS.jpg
Views: 31
Size:  246.6 KB  Click image for larger version

Name:  Estes Cherokee-D First Version-Fins.jpg
Views: 19
Size:  1.40 MB  
Attached Files
File Type: tif k-47e.tif (112.0 KB, 11 views)
__________________
David Stribling
NAR 18402 SR
But it is rocket science!
Get yer Barrowmans here
Reply With Quote
  #3  
Old 07-27-2024, 11:10 PM
bzzh8c bzzh8c is offline
Junior Rocketeer
 
Join Date: Jul 2024
Posts: 2
Default Thanks! I'll look for the triangular piece that makes the whole fin

Thanks! I'll look for the triangular piece that makes the whole fin. Makes sense if the balsa sheet width was limited. Sure didn't think to look for that 50 years ago, but now I'm thinking that little extra sheet of balsa triangles was probably in there.

Todd
Reply With Quote
  #4  
Old 07-28-2024, 11:11 AM
rocketguy101's Avatar
rocketguy101 rocketguy101 is offline
frustrated aero
 
Join Date: Sep 2006
Location: Duncan, OK
Posts: 848
Default

There has been discussion of this before...that is where I got Earl's photo of the old balsa sheet with the "die-crushed" fins

https://www.oldrocketforum.com/showthread.php?t=18571

https://www.oldrocketforum.com/showthread.php?t=18406
__________________
David Stribling
NAR 18402 SR
But it is rocket science!
Get yer Barrowmans here
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 08:03 AM.


Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Ye Olde Rocket Shoppe © 1998-2024