Never built a fiberglass rocket, shiver me timbers, it's really nice. Should fly for ever if nay lost. easy t' build, a little sandin' here and thar and epoxy. T' rocket ended up bein' heaver then i thought it would be. Begad! t' fiberglass is nice t' work and very durable but you trade all that for weight. This Kit didn't turn out as well as i wanted, paint will need t' be redone at some point. Avast! Should fly just as well.