1/2A3-4T Engine Bulk Pack

Bring hands-on STEM learning to life with the Estes 1/2A3-4T Engine Bulk Pack. This mini engine delivers the perfect balance of power and control, allowing students to observe the science of thrust, flight, and recovery in real time. Its shorter burn and lighter lift capacity make it ideal for smaller rockets, ensuring safe and predictable performance for classroom and group settings. Teachers and group leaders can count on Estes engines for their precision manufacturing and proven reliability. The 1/2A3-4T provides consistent results from launch to launch, helping students focus on understanding the scientific principles behind each flight instead of worrying about inconsistent performance. Its moderate altitude range also allows for easier tracking and recovery, keeping activities organized and efficient. Engine bulk packs are designed to simplify group instruction by providing everything you need for 24 complete launches. From engines and starters to plugs and recovery wadding, ea