A8-3 Standard Engines Educator Bulk Pack for Model Rockets (24) (EST1781)

The Estes A8-3 Engine Bulk Pack is designed for lightweight single-stage model rockets weighing up to 3.0 ounces or 85 grams. Its steady thrust and three-second delay make it well suited for classroom programs, youth groups, clubs, and hobby launches where predictable flight performance is important.

Each bulk pack includes twenty-four A8-3 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 helps simplify preparation for group activities and repeated flying sessions.

The A8-3 delivers a total impulse of 2.50 N-sec with a maximum thrust of 10.70 Newtons or 2.4 pounds. Its thrust duration is approximately 0.80 seconds, followed by a three-second delay before ejection. This combination provides a smooth boost, a short coast period, and dependable recovery system deployment for compatible models.

Each engine measures approximately 2.8 inches or 7 centimeters long and has an 18 mm diameter. The engine weighs approximately 0.55 ounces or 15.6 grams and contains approximately 0.14 ounces or 4.1 grams of propellant.

The A8-3 can be used with compatible model rockets including the Alpha, Alpha III, Generic E2X, Wizard, and Viking. Its consistent performance and convenient bulk packaging make it a practical choice for educational rocketry, STEM activities, scout programs, community events, and other group launches. 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.