The PIGS, Part 2

The Ring Thing was designed for the EMRR two-stage challenge competition.
It's a two-stager, the lowest ring section is the booster.
It looks like there is four sections, there is really only three larger rings, the smallest ring is a painted black band.

Here's the back end showing the descending rings and interior fins.

Even with nose weight washers it wasn't stable after staging.
Too bad, I really liked this design.