The Estes C11-3 Engines deliver powerful, reliable thrust for mid-sized model rockets. With a total impulse of 10.00 N·s and a 3-second delay, they’re perfect for heavier rockets that need a strong boost without reaching extreme altitudes. Ideal for intermediate and advanced rocketeers, the C11-3 bridges the gap between B and D engines, offering controlled, consistent flights and smooth recoveries.
Each pack includes 2 engines, 2 starters, and 4 starter plugs, giving you everything needed for multiple launches. Whether you're flying a scale model, testing a payload, or operating within field height limits, the C11-3 provides dependable mid-power performance every time.
Power your mid-sized model rockets with confidence using the Estes C11-3 Engines. These powerful motors are designed for launches that require more thrust than a standard B engine but don’t need the altitude of a D-class engine. With a total impulse of 10.00 N·s, the C11-3 provides reliable, solid acceleration and a controlled 3-second delay before ejection—ideal for rockets with larger airframes or heavier payloads.
The 3-second delay gives rockets just enough time to reach peak altitude before deploying the recovery system, ensuring safe and consistent descents. Perfect for mid-weight kits or scale models, the C11-3 bridges the gap between lower and higher power flights, making it a versatile choice for rocketeers looking to optimize performance without overshooting field constraints.
Each pack includes 2 C11-3 engines, along with 2 starters and 4 starter plugs, so you’re ready for multiple successful launches right out of the box. Count on the Estes C11-3 for dependable mid-power performance that takes your model rocketry experience to new heights.
Total Impulse: 10.00 N-sec
Time Delay: 3 Seconds
Max Lift Weight: 6.0 oz (170 g)
Max Thrust: 22.10 Newtons (4.9 lbs)
Thrust Duration: 0.80 Seconds
Length: 2.75 in. (7 cm)
Diameter: 24 mm
Weight: 1.13 oz. (32 g)
Propellant Weight: 0.44 oz (12.4 g)
