This Lego rocket can really fly using REAL rocket motors! It is 21-1/4" (54 cm) tall and uses Estes C6-7 or D12-7 motors. The rocket is boosted several hundred feet into the air, but (since Lego makes no parachute) it comes crashing back to the earth as a "lawn dart"! Reassembly is easy, since the tough Lego ABS plastic is really hard to break. The bottom of the white Lego rocket fins do get a bit scorched, however. Recommend using a 7-second delay on your Estes motors (instead of the standard 5 seconds) so that the black powder ejection charge goes off AFTER the rocket is already in pieces on the ground.
The rocket uses lots of #2462 Modified Facet Bricks (3x3) sandwiched between the #30062 Modified 6x6 Octagonal Open-Center Plates.