Estes C6-5 Engines – Standard Model Rocket Engine 3-Pack

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Estes C6-5 Engines – Mid-Power Performance for Standard Rockets The Estes C6-5 engine is a single-stage 18 mm standard engine designed for rockets weighing less than 4.0 oz (113 g) , including the motor. With 10.00 N-sec total impulse, 15.30 N max thrust, and a 5-second delay, it provides stable mid-power flights and reliable recovery deployment for a wide range of standard model rockets. Key Features Single-stage 18 mm standard engine 5-second delay for smooth recovery system deployment Designed for rockets under 4.0 oz (113 g) 10.00 N-sec total impulse for dependable mid-power flights 15.30 N max thrust with stable, consistent performance Suitable for educational, hobby, and small-field launches What’s Included 3 × C6-5 rocket engines 4 × starters 4 × starter plugs Specifications Engine Type: C6-5 Stage: Single-stage Size: 18 mm Total Impulse: 10.00 N-sec Delay Time: 5 seconds Max Lift Weight: 4.0 oz (113 g) Max Thrust: 15.30 Newtons (3.4 lbs) Thrust Duration: 1.60 seconds Length: 2.8 in. (7 cm) Diameter: 18 mm Weight: 0.85 oz (24.1 g) Propellant Weight: 0.43 oz (12.2 g) Applications Model rocket launches STEM and educational projects Mid-size beginner and intermediate rockets Hobby and small-field flying Compatible Rockets Antar™ Big Bertha® AstroCam® Alpha III® Important Notes You must have a physical address for delivery Use only with compatible rockets and approved launch systems Follow all applicable safety guidelines Show more