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

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