Estes Teros Upscale, Part 5, D.I.Y. Centering Rings

Four rings were cut, two will be laminated for the front and two for the rear ring.

All four were slipped over the BT-50 tube and gang sanded for a uniform friction fit.

Recesses were punched for engine hook movement.
On the left is the lower ring with a deeper engine hook notch.
The other ring has a very slight engine hook cut. Directly above that is the hole (marked K) for the Kevlar loop.

Glued was applied and two rings aligned.
Both were clamped together for a laminated ring.