Estes Starliner #0863 Build, Part 2, Engine Mount

There are three centering rings on the engine mount, the engine tube is longer than a standard 13mm kit, at 3" long. This length gives support under the wing.

The rear ring is slotted to allow movement of the engine hook. notice the angle of the razor blade. Cutting at this angle should give you the correct slot position when it is glued up.

Cut  the two sides, about 1/8" wide.

The picture on the right shows the cut angles after some shaving of the sides with the single edge razor blade.

The rear ring is glued flush with the engine mount tube.

TIP: Slide the centering ring into the end of a BT-20 (outside tube) to keep the ends down as the glue dries.

Cut a shallow notch in the middle ring for an easier fit over the top of the engine hook. I marked it with pencil to make it easier to see in the picture.

I used a sharpened dowel to rub down the raised burr on the inside of the ring.