B6-4 ENGINES Grades: 4–12+ Number of Students: 1–30 Number of Lessons: NA Hours of Content: NA Highlights: Bagged: The Estes B6-4 engine is a versatile and dependable choice for launching standard-size model rockets. Designed for rockets weighing less than 4.0 ounces, it provides a solid boost with a 4-second delay for smooth parachute deployment. Bulk: The Estes B6-4 Engine Bulk Pack delivers reliable, medium-impulse power for exciting rocket launches. Perfect for larger or heavier rockets, these engines are designed to provide high-altitude flights with consistent performance every time. Curriculum or Lesson Topics: Bagged: The B6-4 is a widely trusted and well-balanced engine that offers reliable performance across a variety of model rocket kits. With a moderate level of thrust and a 4-second delay, it allows rockets to coast effectively before activating the recovery system, making it ideal for rockets that benefit from a longer delay phase after burnout. Designed for single-stage rockets weighing less than 4.0 ounces, the B6-4 engine delivers consistent results and controlled recoveries, making it a great fit for both new flyers refining their skills and seasoned hobbyists looking for dependable flight profiles. Whether you're launching for fun or using rockets in a STEM learning environment, the B6-4 engine provides an excellent combination of power, altitude, and control. Its predictable performance has made it a go-to for generations of rocketeers. Each 3-pack includes everything you need for multiple flights: three B6-4 engines, starters and plugs. Just pair with your favorite Estes rocket and launch system for a fun and educational experience. Bulk: The Estes B6-4 Engine Bulk Pack is a trusted choice for rocketeers who want dependable power and altitude in their launches. Known as a medium impulse engine, the B6-4 strikes the perfect balance of thrust and delay, making it a versatile option for rockets of many sizes. If you’re looking for engines that can handle larger or heavier rockets while still delivering impressive flights, this bulk pack is a great fit. Beyond their power, B6-4 engines are known for their consistency. They provide smooth launches, reliable deployments, and repeatable performance that keeps each launch day running smoothly. This makes them ideal not just for casual rocketeers, but also for groups or educators who need engines that perform consistently across multiple launches. With enough supplies to launch 24 rockets, Estes bulk packs are convenient and cost-effective. The included starters, plugs, and recovery wadding mean you’ll spend less time gathering materials and more time enjoying the excitement of rocketry. It’s everything you need to keep a classroom, youth group, or club stocked and ready for launch day. The Estes B6-4 Engine Bulk Pack is compatible with several popular Estes bulk pack rockets, including the Generic E2X, Alpha III, Wizard, Viking, and Alpha. Whether you’re expanding your fleet or supporting a large group activity, this engine pack is designed to make launches more seamless and more exciting every time. What’s Included: Bagged: Ideal for beginner to intermediate rocketeers, the B6-4 delivers a balanced combination of altitude and recovery timing, perfect for educational launches, club events, or weekend flights. Includes: 3 × B6-4 Engines 4 × Starters 4 × Starter Plugs Bulk: Engine bulk packs make it simple to get your fleet launch-ready, with everything you need to prep 24 rockets for takeoff. Whether for the classroom, youth groups, or backyard launches, the B6-4 is a dependable choice for rocketeers of all levels. Includes: 24 × B6-4 Engines 30 × Starters 24 × Starter Plugs 75 × Squares of Recovery Wadding Technology Requirements/Specifications: Review the full specifications for the B6-4 Engines, including impulse, thrust duration, delay, and physical dimensions. Special Notes and Considerations: PLEASE NOTE: You must have a physical address for delivery. 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.
