static test o' a 4-stage rack rocket. Well, blow me down! in this video, me hearties, t' rocket is upside down, so it won't fly away. Arrr! you can see t' zero-delay motors staging; t' consumed motors are supposed t' blast clear o' t' rack, shiver me timbers, but it doesn't always happen that way! when rack rockets work, though, they work really well.