Estes Semi-Scale Saturn V, Kit #K-39, Part 26, The Long Tunnels

The instructions show tunnel recesses cut into the wraps. Notice the top and bottom of the cut outs - they are square, the dowel tunnel ends are tapered.

I'll cut the section ends the same shape as the dowel ends.

The 5" long tunnels were taped to the body and carefully cut around the dowels.

The tape was placed between the wraps.

Here is a closeup.

I used a new, sharp blade tracing around the tunnels.