Estes 13 mm mini motors: 1/4A, 1/2A and A class. These motors are the smallest and cheapest, suitable for small rockets for the yougest modellers.
A booster for mini multi-stage rockets. Take the chance to create a two-stage rocket without the need for large spaces.
Mini engine with plugged end, without parachute ejection charge. It can be used in boosters or cluster rockets, in rocket cars or rocket propelled airplanes.