Reviews

• Estes Mercury Atlas - Cluster of Three 24mm Motors By Robert A. Morstadt (February 18, 2013)

  This is a modification of the Estes Atlas Mercury kit to use a cluster of three 24mm D12-3 motors. Components This is how I modified the Estes Atlas-Mercury kit to use a cluster of three black powder 24 mm motors.   The original Estes kit uses one central motor with two outer booster simulated engines being the location for extension tubes that have fins to ...