B6-4 Model Rocket Engines (3pk)

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Estes B6-4 Model Rocket Engines (3pk) Overview: The Estes B6-4 engine is single stage engine designed for model rocket flight. This engine is a standard engine designed for flights in rockets weighing less than 4 ounces, including the engine. Each package includes 3 engines, 3 starters and 4 plugs. Standard Estes engines fit the standard BT-20 body tube and are 2.75" (7.0cm) long and 0.69" (18mm) in diameter. This engine offers high performance, reliable ignition, and consistent burn time, all in a durable design that’s easy to install and optimized for model rockets. Features: Great for beginner-build level rocket kits that use 18mm engines High performance thrust Reliable ignition Consistent burn time Easy installation Durable construction Optimized for model rockets Show more