Enerjet by Aerotech Strong Arm Build, Part 8, Gluing In The Engine Mount

This may seem like a lot of pre-glue fitting, but everything must be in the correct position so I double check the fit of all parts. 

The engine mount is glued in.

I applied a ring of 15 minute epoxy from the low end, just above the top of the fin slots.

Why use epoxy? You'll have more working time. You can slide and turn the engine mount into the correct position without it locking up in the wrong place.

As you slide in the mount - 

Keep your eyes on the fin slots making sure the centering rings remain visible, just above and below the top and bottom of the slots.

As the mount is slid into position, TURN the mount to even out the epoxy making a more even internal fillet.

With the centering rings just above and just below the ends of the fins slots -

Slide in the fin tabs without clicking them into the lock rings.

Epoxy is slippery, the TTW fin tabs will keep the mount in the correct position as the glue dries. 

TIP: If you haven't used epoxy before, wear gloves. You might be allergic or could develop a epoxy allergy over time.