Phoenix Missile Build
Building a half-scale phoenix missile proved to be a challenge.
Avionics
A half-length avionics bay is used to make room for the main parachute.
The design of the avionics bay is unconventional in that the bay itself is only half the length of the coupler. This is to make room for the drogue parachute which will be housed in the aft section.
The approach requires cutting a Loc Precision Stiffner in half (more or less) and adding the bulkheads to the forward section. the stiffner in the aft end butts to the forward coupler of the booster.
This cutaway shows the booster coupler and forward airframe section.