Ye Olde Rocket Forum

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


 
 
Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #1  
Old 08-19-2018, 04:02 PM
erik442's Avatar
erik442 erik442 is offline
The Alpha Kid
 
Join Date: Mar 2012
Location: central PA
Posts: 421
Default Fireball XL5

Been working on this one for ages. From the 60's TV series. Parts from Semroc as well as plenty of found objects such as magic marker caps, fountain pen cartridges, plastic mesh, etc.
Main body is a BT-70 running full length with a BT-80 rear section. Most of the small bits are made of carved balsa. I hand cut all the XL5 decals from sheet vinyl using a swivel hobby knife. It is heavy at 23 oz. and measures 27" long with an 11" wingspan.

I had hoped to use an E12, but the finished weight will demand a composite F motor. I'm concerned about the forward fins, so I may use a conventional nose cone for a flight attempt. My wife thinks I'm crazy to fly it at all and risk damage. Balance was difficult to obtain and there is a ring of lead bars epoxied in just behind the nose cone shoulder. I made them by hammering .440 lead musket balls into small rectangles. I didn't want to put that much weight into the nose since it might be too much for the ejection charge to push. I picked up a 30" nylon chute for a gentle descent.

Ever notice how really interesting old sci-fi ships seem to break all the rules of aerodynamic flight when you try to model them?
Attached Thumbnails
Click image for larger version

Name:  build.JPG
Views: 120
Size:  159.7 KB  Click image for larger version

Name:  painted_side.JPG
Views: 116
Size:  1.02 MB  Click image for larger version

Name:  painted_top.JPG
Views: 132
Size:  158.0 KB  Click image for larger version

Name:  painted_underside.JPG
Views: 158
Size:  153.3 KB  Click image for larger version

Name:  painted_rear.JPG
Views: 135
Size:  1.30 MB  
Reply With Quote
 


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 11:38 AM.


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