C6-5 Standard Engines Educator Bulk Pack for Model Rockets (24) (EST1789)

The Estes C6-5 Engine Bulk Pack provides twenty-four 18 mm single-stage model rocket engines designed for rockets weighing up to 4.0 ounces or 113 grams. Their strong thrust and five-second delay make them well suited for compatible models that benefit from a longer coast period before recovery system deployment.

Each bulk pack includes twenty-four C6-5 engines, thirty starters, twenty-four starter plugs, and seventy-five squares of recovery wadding. With supplies for up to twenty-four launches included in one package, the bulk format is a practical choice for classrooms, youth groups, clubs, and other organized launch activities.

The C6-5 delivers a total impulse of 10.00 N-sec with a maximum thrust of 15.30 Newtons or 3.4 pounds. Its thrust duration is approximately 1.60 seconds, followed by a five-second delay before ejection. This combination provides a sustained boost and extended coast period for compatible rockets.

Each engine measures approximately 2.8 inches or 7 centimeters long and has an 18 mm diameter. The engine weighs approximately 0.85 ounces or 24.1 grams and contains approximately 0.43 ounces or 12.2 grams of propellant.

The C6-5 Engine Bulk Pack is a practical choice for educational rocketry, STEM activities, club launches, youth programs, and repeated hobby flights where consistent performance and convenient quantities are important. Always verify the rocket manufacturer's recommended engine configuration before use.

Purchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.