Estes Mercury Redstone Building Log

[hcmbanjo]

Another change I made concerns the attachment of the shockcord itself. I don't really like this folding story from Estes, so I designed the shock cord attachment so that I can swap it out if something happens. A tube runs parallel to the motor tube through both frames and I can attach the shock cord to the bottom of the rocket and change it if necessary. So that nothing tears out, the tube has been given an aluminum sleeve on each of the frames.
Admittedly, the flange is quite narrow, but that should be enough, especially since the motor is still sticking out.


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That Replaceable Kevlar Line Engine Mount goes back to an article I wrote for the Apogee Peak Of Flight from 2013.
https://www.apogeerockets.com/education/downloads/Newsletter338.pdf
Next time you might want to try a smaller diameter straw. While developing that mount I tried a 1/8" diameter launch lug
and maybe too much of the ejection charge was blowing out the back of the model.

Regarding the tower - Lee Piester told me the tower was designed to pop off in one piece, not to break up.
It takes some pressure and coaxing to get the ends into the ring dimples.

Here's a link to my build with those tower building tips:
https://modelrocketbuilding.blogspot.com/search/label/E Mercury Redstone