The Estes A3-4T Engine Flight Pack is an ideal choice for educators bringing hands-on STEM learning to life through model rocketry. Designed for lightweight rockets using 13mm mini engines, the A3-4T offers 2.50 N-sec of total impulse with a thrust duration of just 0.6 seconds—resulting in quick, responsive launches that keep students engaged. A 4-second delay supports a predictable coast and recovery phase, making it easier to plan launches and analyze flight data.
Compact, reliable, and classroom-friendly, the A3-4T engine is well-suited for rockets under 2.0 oz (57 g), offering consistent performance across repeated launches. With a max thrust of 6.8 newtons, it delivers enough power for educational flight activities without overwhelming beginner-level rockets. These attributes make the A3-4T a trusted option for curriculum-based programs that value precision and safety.
The A3-4T Engine Flight Pack includes four engines, four starters, four plugs, and twelve sheets of recovery wadding—everything you need to support multiple student launches without complicated prep. This all-in-one pack saves educators valuable time and helps ensure a smooth classroom or field launch experience.
Estes Education supports inquiry-driven learning through rocketry, and the A3-4T Engine Flight Pack is a smart, scalable tool for engaging students in physics, engineering, and aerospace principles through real-world experimentation and observation.
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.
