Estes Saturn 1B, #7251 Build, Part 28, Engine Hook Notch

A notch is needed in the low centering ring to allow engine hook movement. The notch location is set between two of the booster tubes.

Slide the engine mount in place and mark the width of the hook in pencil.

The instructions imply the notch is cut and removed. I decided to make a smooth "ramp" inside.

In the upper right picture a small slot is cut and removed from the centering ring.

The sides are cut straight down, but no cut is made at the bottom of the notch.

The notch was pressed into the ring notch cut earlier. No need to remove a segment of body tube

Some glue is rubbed over the notch.

 

The engine mount is glued into the central core tube. 

I used my sanding block to press the engine mount even with the bottom of the centering ring.

Build time:

Make notch and glue in engine mount: 20 minutes

Total build time so far: 21 hours, 55 minutes