3-second coast phase enables safe and visible parachute recovery
Delivers 10,000 Ns total impulse for mid-sized rockets
Compatible with standard Estes launch systems for easy setup
Includes 2 engines, 2 starters, and 4 starter plugs for multiple launches
Supports rockets up to 6 ounces for versatile model compatibility
Summarized by Shop
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 de
Engine Type
Single-stage solid rocket engine
Engine Diameter
24 mm
Total Impulse
10,000 Ns
Coast Phase Duration
3 seconds
Maximum Lift Weight
6 oz
Pack Contents
2 engines, 2 starters, 4 starter plugs
Summarized by Shop
4.8
19 ratings
5
4
3
2
1
Very pleased with the performance of these engines. Everyone I had worked flawlessly. Thank you.
L
Lee · August 19, 2026
C11-3
Great initial launch engine prior to using a D or E engine in a new rocket. Can be used anytime. Plenty of power.
