Estes C11-3 Model Rocket Engines
010025 C11-3 Model Rocket Engines 24mm
Estes C11-3 Rocket Engines Plugs and Ignitors
C11-3 24mm Model Rocket Engines
Estes C11-3 Model Rocket Engine
C11 Model Rocket Engine Thrust Curve Chart
Model Rocket Thrust Curve Example

C11-3 Engines

SKU: 010025
UPC: 047776100251
MSRP/MAP: $10.99
$10.99
Sale

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.

Includes:
- 2 C11-3 Engines
- 2 Starters
- 4 Starter Plugs

PLEASE NOTE: You must have a physical address for delivery.

Overview

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.

ATTENTION: Residents of California, New Jersey, Rhode Island and North Dakota please review the Terms of Sale for state specific restrictions or Click Here for State Specific Restrictions.

Estes C11-3 Rocket Engines Plugs and Ignitors

Technical Specifications

Technical Specifications

  • 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)
C11 Model Rocket Engine Thrust Curve Chart

Customer Reviews

Based on 2 reviews
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G
Gary Legates

Flew like they They worked as advertised !
That is what you expect when it has the Estes name on it. Thank you! supposed to. :-)

J
Jim Hodges
We are back

60 years ago I took an order form to my Mo TV her to have her write a check for some toy rockets I wanted, and she did it! She had no idea.
Many years ago my boys were introduced to my old hobby. And this Christmas my oldest son is introducing his son to real rockets and reigniting his passion for the hobby. Bigger boys need bigger toys.