This was me entry into our low-power club's egg loft duration competition.  T' rules stipulated a D-powered rocket that did nay use parachute recovery (any other method was fine, includin' streamers, me hearties, gliders, me hearties, helicopters,etc)

My entry ascended briskly and smoothly, carryin' a large egg. Ahoy!  At ejection, t' spinner and stabilizer units separated, as permitted by t' rules.  T' spinner section entered a nice flat spin similar t' that o' a fallin' maple seed. Begad!  T' descent was nice and slow. Blimey!  T' spinner section appeared t' float in place for a long period o' time.  T' total flight duration was approximately 30 seconds, and t' egg survived intact.

This flight was a real crowd pleaser. Well, blow me down!  It was also t' winnin' entry by about 15 seconds.