10.00 N·s total impulse provides strong, sustained boost for mid-weight and high-drag rockets
1.85-second thrust duration ensures optimal performance for rockets requiring early recovery
3-second delay enables timely deployment of recovery systems, enhancing safety
Each pack includes 3 engines, 4 starters, and 4 starter plugs for multiple launches
Engineered to meet rigorous safety and quality standards for dependable use
Summarized by Shop
When your rocket needs a fast, steady boost and an earlier recovery, the Estes C5-3 engine delivers. With a total impulse of 10.00 N-sec and a thrust duration of 1.85 seconds, this 18 mm engine is engineered to provide a longer, sustained push off the launch pad, making it a strong match for mid-weight rockets and high-drag designs.
The 3
Engine Size
18 mm
Total Impulse
10.00 N·s
Thrust Duration
1.85 seconds
Delay
3 seconds
Maximum Lift Weight
8.0 oz
Pack Contents
3 engines, 4 starters, 4 starter plugs
Summarized by Shop
4.9
42 ratings
5
4
3
2
1
I have been buying from Estes since i was 11 years old back in 1967 . Service and quality are always great. Working now to get my grandkids into rocketry . Estes will be a part of that.
C
Customer · July 11, 2026
Great Motors!
These motors work well for slightly heavier models.
