D12-5 Standard Engines for Model Rockets (2) (EST10028)

The Estes D12-5 is a 24 mm single-stage model rocket engine designed for rockets weighing up to 10.0 ounces or 283 grams. Its strong thrust and five-second delay make it well suited for compatible models that benefit from a longer coast period before recovery system deployment.

Each package includes two D12-5 engines, two starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.

The D12-5 delivers a total impulse of 20.00 N-sec with a maximum thrust of 32.90 Newtons or 7.4 pounds. Its thrust duration is approximately 1.60 seconds, followed by a five-second delay before ejection. This combination provides a powerful boost and extended coast time for compatible rockets.

Each engine measures approximately 2.75 inches or 7 centimeters long and has a 24 mm diameter. The engine weighs approximately 1.61 ounces or 45.6 grams and contains approximately 0.85 ounces or 24.2 grams of propellant.

The D12-5 is a practical choice for compatible larger single-stage rockets and suitable upper-stage applications that require strong acceleration and a longer delay before recovery deployment. It is also a useful option for rocketeers moving up from smaller engine classes. 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.