ASP Engine Adapter 13/18 Part 1

A build blog about an engine mount?
The Aerospace Specialty Products (A.S.P.) 13/18 Engine Adapter is different enough to justify it.

Lots of parts - For such a small adapter (13mm to 18mm)
Four centering rings and a central long coupler will make one strong mount.

Enlarge the picture and you can see the cross section drawing better.

In the center of the BT-5 motor mount tube is the coupler and two of the 5/20 rings.

This goes over the engine hook holding it in line.  

To start, you have to peel some outside layers off two of the 5/20 rings.

Peel off enough to friction fit into the brown coupler.

To show how much of the ring is taken off, here's two rings.
Before on the left and peeled to size on the right.