B4-2 Engines

The Estes B4-2 engine is a strong choice for your classroom, camp, or youth program when you want safe, repeatable flights that help students understand the fundamentals of model rocketry. With a total impulse of 5.00 N-sec and a 2 second delay, the B4-2 delivers clear, easy to observe flight behavior that supports hands on learning.

Because the B4-2 provides consistent thrust and dependable ignition, you can run group launches with confidence. This makes it easier for you to guide discussions about force, motion, drag, and recovery systems while your students watch those concepts in action.

The B4-2 pairs well with many lightweight educational rockets, giving you flexibility in your lesson planning. Its moderate altitude and controlled flight path help keep recovery close to the launch area, which is especially useful when supervising large groups of students.

If you want an engine that supports smooth launch days, strengthens STEM instruction, and gives your learners a clear view of how rockets fly, the Estes B4-2 is a reliable option for your program.

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.