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Old 03-25-2011, 01:04 PM
hcmbanjo's Avatar
hcmbanjo hcmbanjo is offline
When Pigs Fly!
 
Join Date: Sep 2005
Location: Orlando, FL
Posts: 1,102
Default New Downscale Big Bertha PDF Available!

I just finished up a new carded downscale of the Estes classic
BIG BERTHA
This scheme is based on the color picture from the 1969 Estes catalog.

The FREE PDF includes a BT-5 body skin wrap and cardstock fins.
It stands 7 3/4" tall and flys with 1/2A3-2t and A3-4t engines.

Bob Harrington had already produced a great carded MiniBrute version of the Bertha.
Mine is a little different in that you use a BT-5 and apply a printed skin over the tube. There is no painting except for the nose cone.
The fin overlays are made with a rounded leading edge.

You can get the whole story on my Model Rocket Building Blog at:
http://modelrocketbuilding.blogspot...ailable_25.html

Download your free PDF at Wayne Hill's Rocketry Blog at:
http://rocketry.wordpress.com/ultim...partial-builds/
Scroll all the way down to the bottom for the Mini Bertha.
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