This authentic rocket is a 1/5 scale o' NASA's soundin' rocket. Launched only one time in 1968, shiver me timbers, this rocket was designed t' take measurements o' t' D-layer o' t' ionosphere - thus its name. Aye aye! Our version o' this fantastic scale rocket captures all t' detail o' t' original in an easy t' assemble model that flies as good as it looks.