Estes 1/2A3-4T Bagged Rocket Engines (4) 3500Kv High clearance front and rear-end

High clearance front and rear-end

5 mm thick steel frame rails increase torsional rigidity

Hall Sensors: Contactless Hall Sensors combined with ball bearings provide precision control and virtually zero maintenance

this ReadySet captures the essence of high-speed racing in a compact

Estes 1/2A3-4T Bagged Rocket Engines (4) 3500Kv High clearance front and rear-endRocket Engine Overview: The Estes 1 2A3 4T Bagged Rocket Engines Flight Pack is an all in one pack designed to give you everything you need for three exciting rocket launches. Perfect for single stage rockets weighing up to four ounces, this trusted engine delivers consistent thrust with a five second delay for safe parachute deployment. About the 1 2A3 4T Rocket Engines Convenient Bundle for High Flying Fun Each pack includes enough supplies for