This authentic rocket is a 1/5 scale o' NASA's soundin' rocket. Aye aye! 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. Ya scallywag! 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.