Mercury Engineering 3" Diam. School Rocket Build, Part 2, Engine Mount

The engine mount assembly is straightforward, no surprises here.
The engine hook slot is laser cut, the centering rings glue onto the etched lines on the motor mount tube.







The Kevlar shock cord is tied with a bowline knot through the two holes in the upper centering ring.
You'll use the bowline knot a few more times in the model assembly.







The end of the engine mount tube end is flush with the 3" outside tube edge.
The spring steel engine hook overhangs the end by about 1/4".