A8-3 ENGINES

• Grades: 4–12+
• Number of Students: 1–30
• Number of Lessons: NA
• Hours of Content: NA
  

Highlights:

Bagged:

The Estes A8-3 engine is a reliable choice for launching standard-size model rockets to impressive heights. Designed for rockets weighing less than 3.0 ounces, it delivers consistent thrust and a smooth 3-second delay for parachute deployment.

Bulk:

The Estes A8-3 Engine Bulk Pack is perfect for rocketeers who want reliable, classroom-friendly launches. Designed for rockets under 3 ounces, these engines provide smooth, consistent flights that allow students and hobbyists to enjoy the full flight profile from takeoff to recovery.

Curriculum or Lesson Topics:

Bagged:

The A8-3 is one of Estes’ most popular engines, and for good reason. With a powerful yet manageable thrust profile, it’s designed to launch lightweight model rockets up to 500 feet. The 3-second delay allows the rocket to coast at apogee before deploying the recovery system, resulting in picture-perfect flights and gentle landings.

This engine is ideal for use in smaller, single-stage rockets and offers a great introduction to model rocketry. Whether you're learning the basics or refining your skills, the A8-3 provides a reliable and predictable flight experience that helps build confidence with every launch.

Each A8-3 engine is precision-manufactured for consistent performance, so you can trust it to deliver a thrilling liftoff and smooth recovery every time. It's an excellent option for schools, camps, STEM programs, or anyone seeking a safe and satisfying launch.

The A8-3 three-pack includes everything needed for multiple flights, including starters and plugs. Just add your favorite Estes rocket and a launch system, and you're ready to take off.

Bulk:

The Estes A8-3 Engine Bulk Pack is designed to make group launches simple, safe, and exciting. As one of the most reliable single-stage engines in the Estes lineup, the A8-3 is ideal for rockets weighing less than 3 ounces. It provides a stable thrust and a 3-second delay, making it a favorite for classrooms, clubs, and hobbyists who want to see the full rocket flight profile from lift-off through recovery.

What sets the A8-3 apart is its consistency. These engines offer predictable performance, giving rocketeers the confidence that each flight will showcase the thrill of model rocketry without surprises. It’s a beginner-friendly engine that still delivers excitement, making it an excellent choice for first-time flyers and group programs alike.

Each bulk pack includes enough engines, starters, plugs, and recovery wadding to power 24 launches. That means less time worrying about running out of supplies and more time enjoying hands-on STEM activities, competitions, and outdoor fun. With easy-to-use components and a reputation for safety, Estes engine bulk packs are designed to simplify setup and maximize enjoyment.

The A8-3 Engine Bulk Pack is recommended for use with Estes rocket bulk packs such as the Alpha, Alpha III, Generic E2X, Wizard, and Viking. Pairing these rockets with the A8-3 ensures exciting yet manageable flights, perfect for classrooms, scout groups, and community rocketry events. Give your next launch day everything it needs with this convenient, ready-to-use engine bulk pack.

Use Estes A8-3 engines to launch these bulk pack rockets -

• Alpha Rocket Bulk Pack (12 pk)
• Alpha III Bulk Pack (12 pk)
• Generic E2X Bulk Pack (12 pk)
• Wizard Bulk Pack (12 pk)
• Viking Bulk Pack (12 pk)

What’s Included:

Bagged:

Perfect for beginners and seasoned rocketeers alike, the A8-3 offers a balanced flight profile that makes it ideal for classroom demonstrations, youth group launches, and everyday backyard fun.

Includes:

3 × A8-3 Engines

4 × Starters

4 × Starter Plugs

Bulk:

With enough supplies to launch 24 rockets, this bulk pack makes it easy to power Alpha, Alpha III, Generic E2X, Wizard, Viking, and other Estes favorites. Whether you’re launching at school, with a youth group, or at a community event, the A8-3 bulk pack delivers dependable performance every time.

Includes:

24 × A8-3 Engines

30 × Starters

24 × Starter Plugs

75 × Squares of Recovery Wadding

Technology Requirements/Specifications:

Review the full specifications for the A8-3 Engines, including impulse, thrust duration, delay, and physical dimensions.

Special Notes and Considerations:

PLEASE NOTE: You must have a physical address for delivery.

ATTENTION: Estes Industries, LLC requires all purchasers and users of Estes® Model Rocket Engines to adhere strictly to all applicable local, state, and federal laws, regulations, and safety standards. The user assumes all responsibility for the safe and lawful use of Estes® products. Estes Industries, LLC expressly disclaims any and all liability for personal injury, property damage, or other loss resulting from the misuse, improper handling, or unauthorized application of its model rocket engines.