B6-4 Engine Bulk Pack

The Estes B6-4 Engine Bulk Pack is a trusted choice for educators, youth program leaders, and science instructors who want dependable performance for hands-on learning. These medium impulse engines deliver the power needed to lift larger or heavier rockets to impressive altitudes while providing stable, predictable flight paths that make each launch a valuable teaching moment.

In classroom settings or group launches, consistency is key. The B6-4 engine performs reliably across multiple rockets, making it ideal for activities where every student should experience a successful launch and recovery. The moderate impulse range allows students to clearly observe takeoff, coast, and parachute deployment, reinforcing key concepts in aerodynamics and physics.

Each bulk pack includes everything needed to prepare for 24 launches, including engines, starters, plugs, and recovery wadding. This complete setup helps teachers streamline lessons, minimize downtime, and focus on student engagement and learning outcomes.

The Estes 1783 B6-4 Bulk Pack works seamlessly with several of our most popular educational rocket kits such as the Generic E2X, Alpha III, Wizard, Viking, and Alpha. Whether you are running a rocketry unit, hosting a STEM camp, or coordinating a youth program, this engine pack offers an easy and reliable way to power learning through flight.

ATTENTION: Estes Industries, LLC requires all purchasers and users of Estes® Model Rocket Engines to adhere strictly to all applicable local, state, and federal laws, regulations, and safety standards. The user assumes all responsibility for the safe and lawful use of Estes® products. Estes Industries, LLC expressly disclaims any and all liability for personal injury, property damage, or other loss resulting from the misuse, improper handling, or unauthorized application of its model rocket engines.