D12-5 Engine Bulk Pack

Inspire your students with real rocketry experiences using the D12-5 Engine Bulk Pack. Each pack provides dependable Estes D12-5 engines with the power and stability needed for classroom and group launch programs. With consistent performance across every engine, educators can count on repeatable results that support meaningful data collection and scientific analysis.

The D12-5’s moderate impulse and 5 second delay make it ideal for rockets such as the Green Eggs, Big Daddy, and Odyssey. Students can calculate predicted altitudes, record flight data, and compare outcomes while witnessing the physics of motion firsthand. Whether your goal is to enhance STEM learning, host a rocket day, or build student excitement around aerospace science, the D12-5 Engine Bulk Pack provides everything you need to power a full session of educational launches with confidence and consistency.

Performance details include a total impulse of 20.00 N·s, a 5 second time delay, and a maximum lift weight of approximately 10.0 oz (283 g). With strong, steady thrust and dependable ignition, the D12-5 is a proven engine for demonstrating key STEM concepts while ensuring safe, controlled launches every time.

Give your students the thrill of real-world flight while teaching the science that makes it possible. The Estes D12-5 Engine Bulk Pack turns your classroom or camp into a launch site for discovery, teamwork, and learning that truly takes off.

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.