Booster Barrel Locked

Pop, scramble, *wheee!* I tumbled out of my wicker star hangar and marched straight along yesterday's blue chalk runway! Right at the end, propped against the railing post, sat a giant, shiny brass hose nozzle. *Ooh-la-la!* Gleaming, heavy metal! I gripped the knurled adjustment ring with both gloved hands and gave it a mighty heave. *Click-clack-whirrr!* The brass collar ratcheted with a snappy mechanical thwack. My single eye popped wide! I hauled my green rocket upright and slotted its tail right into the hollow brass opening. *Clink-snug!* A heavy-duty booster launch barrel officially locked and loaded!