Rocket Engine Overview: The Estes 1/4 A3-3T 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 1/4 A3-3T Rocket Engines Convenient Bundle for High-Flying Fun Each pack includes enough supplies for three full rocket flights. The 1/4 A3-3T engine is a go-to choice for intermediate rocketeers, offering a balance between altitude and coast time for reliable performance. With updated convenience and trusted design, this bundle ensures you can focus on the excitement of countdowns and high-altitude flights instead of preparation details. Features: Designed for rockets weighing up to four ounces Provides a five-second delay for safe recovery Reliable performance for single-stage rockets Ideal choice for intermediate-level rocketeers Includes: (4) Engines (4) Engine Starters (4) Starter Plugs
