Estes A8-3 Engines – Reliable Power for Standard Rockets
The Estes A8-3 engine is a trusted option for launching standard model rockets. Designed for lightweight rockets, it delivers consistent thrust with a 3-second delay to ensure proper recovery system deployment.
Key Features
- Standard 18 mm engine size compatible with many Estes rockets
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3-second delay for controlled parachute deployment
- Designed for rockets under 3.0 oz
- Consistent and reliable flight performance
- Suitable for hobby and STEM applications

What’s Included
- 3 × A8-3 rocket engines
- 4 × starters
- 4 × starter plugs

Specifications
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Engine Type: A8-3
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Size: 18 mm
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Delay Time: 3 seconds
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Recommended Rocket Weight: Under 3.0 oz
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Estimated Max Altitude: Up to 500 ft
Applications
- Model rocket launches
- STEM and educational projects
- Beginner and hobby use
Compatible Rockets
- Rascal™ & HiJinks™ Launch Set
- Alpha®
- Alpha III®
Important Notes
- Physical address required for delivery
- Use only with compatible rockets and launch systems
- Follow all applicable safety guidelines