Estes AMRAAM AIM-120 Downscale, Build, Part 4, Making The Conduit

Blowing up the Alway drawing in Corel Draw - I came up with the dimensions for the long conduit tunnel.

Tunnel dimensions:

11.75" long

.130” high x x .40 wide

I used the online picture to get a better idea of the shape.

The tunnel is wide and won't have a good fit over the round tube.

I rolled some 320 grit sandpaper around the tube.

Using straight back and forth movements, a curvature was sanded into the bottom.

Here's a better fit.

Any gap will be filled with a glue fillet.