C11-5 Model Rocket Engines (2pk)

Estes C11-5 Model Rocket Engines (2pk) Overview: The Estes C11-5 is a reliable mid-power engine ideal for customers transitioning from standard 18 mm motors. With a 24 mm diameter and 10.00 N-sec of total impulse, this engine offers a noticeable performance boost for mid-sized rockets requiring extra thrust and altitude potential. Its consistent 5-second delay and solid 0.80-second thrust duration make the C11-5 a dependable upgrade option for hobbyists looking for more lift without committing to E-class engines. A strong seller for mid-level fliers seeking more advanced flights. Package Includes: (2) C11-5 Engines (2) Starters (4) Starter Plugs The Estes C11-5 engine fills an important niche for customers who have mastered beginner launches and are ready to explore more powerful model rocket engines. With a 24 mm diameter and a total impulse of 10.00 N-sec, this single-stage engine delivers impressive thrust and altitude potential for rockets weighing up to 5 ounces. It’s a natural step up for hobbyists looking to expand their flying capabilities without jumping to higher-cost, high-power options. This engine is designed for dependable, high-thrust launches with a 0.80-second thrust duration and a 5-second coast before ejection. It provides just the right balance of power and delay for stable flight and optimized parachute deployment. The C11-5’s peak thrust of 22.10 newtons makes it ideal for rockets too heavy for B or standard C motors, yet not quite in need of E-class power. With a wide compatibility range and a proven performance profile, the C11-5 is an essential part of any engine assortment that targets intermediate rocketeers. Its solid specs make it especially appealing to hobby shops, hardware stores, and toy retailers looking to offer more than just entry-level engines. Features: Great for beginner-build level rocket kits that use 24mm engines High performance thrust Reliable ignition Consistent burn time Easy installation Durable construction Optimized for model rockets