{HEAD ~ The separating mechanism} does not take up any extra space in the missile or booster body, but fits into {TAIL ~ unused volume} surrounding the booster nozzle 
fits into
{ HEAD ~ The separating mechanism } does not take up any extra space in the missile or booster body , but fits into { TAIL ~ unused volume } surrounding the booster nozzle
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH