Just wanted to reiterate the importance of keeping the CG location of the rear-eject pod the same as the original kit pod, whether retrofitting or fabricating a new rear-eject pod. The original pod’s length and balance point (with an unfired motor installed) was chosen by its designer to ensure a stable vertical launch and minimize or eliminate looping or weathercocking on ascent.

This becomes even more important with gliders with pre-canted forward canard wings. If designing from scratch, the launch CG of glider and pod with an unfired motor installed should fall at or near the center of lift of the canard.

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