T' Stonebreaker is a medium-sized, medium powered sport rocket.  T' design concept is that this rocket is t' be used t' carry nuclear warheads into space t' target large asteroids that are endangerin' t' earth.

My particular rocket has been modified t' use a smaller, 19" Nylon parachute. T' stock 32" parachute supplied in t' kit is much too large.  I also added a small altimeter compartment in t' base o' t' hollow plastic nose cone. T' other difference be t' addition o' a sprin' clip for t' motor (not supplied) and I painted it bright silver instead o' t' suggested white.