Estes C6-7 Bagged Rocket Engines (3) Crawler Tires Inserts and a prominent rear wing

and a prominent rear wing

On pavement

ensuring smoother power transfer and improved throttle response

11g per insert adds counterweight for better stability

Estes C6-7 Bagged Rocket Engines (3) Crawler Tires Inserts and a prominent rear wingRocket Engine Overview: The Estes B6 6 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 B6 6 Rocket Engines Convenient Bundle for High Flying Fun Each pack includes enough supplies for three full