Quest Courier #Q2011 Build, Part 2, Engine Mount

The instructions say to use the blue thrust ring (engine block) as a height guide to cut the engine hook slit.

My yellow engine tube already had a pre-cut slit.

The yellow tube doesn't have a glassine wrap so it is not quite as strong as a standard BT-20 tube. 

Be sure to do a wipe of CA glue on the lower end. Don't do a CA coat inside the upper end, the wood glue won't stick to it when gluing in the engine block.

The tube is marked for the two centering rings, 1/2" from each end.

TIP: Mark the centering ring positions in a few locations around the tube. It's easier to line up and the ring will be straight. 

TIP: Kit instructions usually suggest masking tape retention over the engine hook. I use a more permanent and flexible electrical tape.

The instructions don't say to do so - 

I cut notches to clear the engine hook and passage of the Kevlar line.

OLD SCHOOL: For extra strength, I also add a drop of glue on the engine hook slit.