Saturday, October 25, 2014

Estes Patriot Build #2056, Part 4, 24mm Engine Mount

This 24mm mount will have a replaceable Kevlar line.
The small holes are punched for the Kevlar tube. On the right the larger circle is for the engine hook movement.

In addition there are lines drawn for some reinforcement gussets.
This will be a D engine mount, I wanted it stronger than just the two centering rings.

Reinforcement gussets were cut from the excess 3/32" thick wood stock. Cut them longer than needed and sand to a good fit between the rings.
They are cut higher than the height of the centering rings for trimming later.

At the bottom you can see the Kevlar guide tube in place.
Before gluing on the gussets, wrap some electrical tape around and over the engine hook and Kevlar tube.
After the glue dried on the four gussets, they tops were sanded flush with the outside edges of the centering rings.

It's pretty surprising how much stronger the entire engine mount is with the gussets added.
Check the fit in the BT-60 tube before gluing. The gussets will require you to sand the rings a bit for a sliding fit.

Build time:
Assemble Engine Mount = 15 minutes
Add gussetts and sand = 15 minutes
Total build time so far = 1 hour

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