Estes B6-4 Rocket Engine (3)

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This is a pack of three Estes B6-4 Model Rocket Engines. The Estes B6-4 engine is single stage engine designed for model rocket flight. This engine is a standard engine designed fo r flights in rockets weighing less than four ounces, including the engine. Each package includes three engines, three igniters and four igniter plugs. Specifications: Engine Type: B6-4 Total Impulse (N-sec): 5.0 Time Delay (Sec): 4 Maximum Lift Wt. (Oz/g): 4.0/113 Maximum Thrust (Newtons/Lbs): 12.1/2.7 Thrust Duration (Sec): 0.8 Initial Weight (Oz/g): 0.71/20.1 Propellant Weight (Oz/g): 0.22/6.24 Show more