The E16-4 Engines (29 mm) by Estes Rockets deliver powerful and reliable performance for mid to high-powered model rockets. Ideal for single-stage flights or upper stages of multi-stage designs, these engines provide an impressive total impulse of 33.68 N-sec and a 4-second delay for optimal parachute deployment. Whether you're launching larger rockets or experimenting with advanced models, the E16-4 is the perfect choice for rocketeers seeking precision and altitude.

Designed for rockets weighing up to 20 ounces (566 grams), the E16-4 engine ensures smooth and consistent thrust, lifting your rocket to incredible heights. Each package includes two engines, two starters, and four starter plugs, making it easy to prepare for multiple launches. Whether you're an advanced hobbyist or looking to expand your fleet with higher-performance options, the E16-4 offers a dependable and exhilarating experience.

With its reliable thrust and versatility, the E16-4 Engine is an essential addition to any rocketeer’s collection. Launch your next adventure with confidence and experience the power of Estes!

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.