Monday, November 1, 2010

Mercury Redstone Part 3 Centering Rings


The fit of the rings was near perfect on the outside of the body tube.
The fit of the BT-5 tube was too tight.

Here I'm peeling out a layer or two of paper from the inside of the centering rings.



Look closely and compare the wall thicknesses of the two rings. I took off too much paper on the right side ring.
To build up the inside diameter of the ring, a bead of white glue was added. When dry it should be a better fit.


Here's the completed mount.

The two-strand shock cord was made by unraveling a four-strand piece of 100 lb. Kevlar. Two strands, or 50 lbs. should be plenty strong for a model this size.

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