The recovery tether.

The twisted Kevlar cord that was included int he kit isn't good enough IMO, so I'll instead use a length of my best 400lb. braided Kevlar. After calculating what the distance will be from the front CR to the open end of the BT101 (11.75" in this case,) I cut a 36" piece of the 400lb. braided Kevlar. I then make an overhand loop in the middle and tie a stop knot on both loose ends at 11.5" from the top of the loop above the center knot. This way the Kevlar won't extend out of the front of the BT101--but is still long enough to pull out of the rear of the engine mount if necessary.

After reaming the holes in the top CR with a Swiss file I feed the loose ends of the Kevlar tether through the holes and join them on the other side of the top CR with a square knot. I then cinch the knot and enrobe it with epoxy. I feel this part needs to be over-engineered because it will never be seen again--unless there's a disaster.

The engine mount is now ready to be epoxied into the BT101.

TBC

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