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The Estes C5-3 engine is built for rockets that need a stronger, steadier push from an 18 mm engine. With 10.00 N-sec of total impulse, 20.40 Newtons of max thrust, and a 1.85 second thrust duration, it gives mid-weight and higher-drag rockets the confident boost they need off the launch pad.
A 3 second delay helps bring recovery deployment earlier in the flight, making the C5-3 a smart choice for rockets that do not need a long coast before parachute ejection. It is a great option for intermediate flyers who want more control, dependable performance, and classic Estes engine reliability.
- Includes:
- 3 × C5-3 Engines
- 4 × Starters
- 4 × Starter Plugs
PLEASE NOTE: You must have a physical address for delivery.
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-second delay ensures timely recovery system deployment, which is especially important for rockets with a max lift weight of up to 8.0 oz. That shorter delay window minimizes coast time and helps deploy parachutes earlier in the flight arc, leading to safer, more predictable landings; perfect for designs that don't benefit from long coasts or for flying in variable wind conditions.
Each pack contains 3 C5-3 engines, 4 starters, and 4 starter plugs, giving you everything you need to prep for multiple launches. Just add your recovery wadding, launch pad, and controller, and you’re ready for a high-thrust experience backed by Estes’ consistent engine quality and safety.
Whether you're testing new rocket configurations or simply want tighter control over recovery timing, the C5-3 engine offers a reliable balance of power and performance. It’s a go-to choice for intermediate rocketeers looking to expand their engine lineup with something both powerful and precise.
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