Tri-Flier Rocket and Box
Tri-Flier Bundle
Rocket Only
Estes Tri-Flier Launch
Rocket Recovery
Three Fins
Different Flight Options

Tri-Flyer STEM Kit

Sku: 000647

Embark on a thrilling journey into the cosmos with this STEM experience, a model rocket designed for beginners and aspiring space explorers. With three fin shapes and two engines included, this kit offers an exhilarating introduction to the world of aerospace engineering. Built with safety and simplicity in mind, the Tri-Flyer features a user-friendly assembly process and a reliable launch system. With five STEM activities included in the booklet, explore the impact of different fin shapes on flight. Launch over and over until you can determine which fin is best for speed, altitude, and landing. Unleash the boundless potential of STEM education and ignite a passion for exploration that will last a lifetime!

  • SKILL LEVEL: Beginner
  • RECOMMENDED ENGINES: B6-4, B6-2, B4-4,C5-3, C6-3
  • PROJECTED ALTITUDE: 900 ft. (274 m)


Get Ready for Lift-Off

If you're new to rocketry, the Tri-Flyer is your perfect starting point. It's designed to be simple and exciting, so you can have a blast right from the beginning!

Rocket Basics

Size: The Tri-Flyer stands about 2 feet tall and is less than an inch wide. It's just the right size for easy handling.
Weight: It's lightweight, allowing for it soar up into the sky.

3 Is Greater Than One

With 3 included fin cans, you have the opportunity to experience multiple different flights with your rocket! Use these different fin cans to complete the activities in the included STEM activity book!

Safe Return

After its high-flying adventure, the Tri-Flyer comes back to Earth gently. A special parachute system ensures a smooth landing every time.

What You Need

All you need to get started is a safe place to launch, a launch pad like the Porta Pad II, and a small rod to support the rocket. These are easy to find and use.

Perfect for Ages 10+

Whether you're 10 or 110, the Tri-Flyer is a great way to have fun with rockets. It's designed for beginners, so you can start your rocketry adventure at any age.

Bringing STEM to Life

The Tri-Flyer is more than just a rocket—it's a way to make STEM subjects exciting and hands-on. You'll see science and engineering in action with every launch. With five STEM activities included, the possibilities for learning are paramount! With activities to test flight speed and altitude, the sky really is the limit with the Tri-Flyer!


Includes Everything Needed to Launch!

  • Rocket

Launch Pad and Controller, 2 B6-4 Engines with Igniters and Plugs, Recovery Wadding
  • Engines

2 B6-4 Engines
  • Launch Pad

 Porta-Pad II
  • Launch Controller

 Electron Beam Launch Controller
  • Enough Supplies for

 2 Launches

What You Need to Build

 Yellow Glue, Plastic Cement, Pencil

Tools, Construction, and Finishing Supplies Not Included. Shop Supplies

Technical Specifications

Technical Specifications

  • Recommended Engines

B6-4, B6-2, B4-4, C5-3, C6-3
  • Launch System

Porta-Pad II
  • Projected Max Altitude

900 ft (274 m)
  • Recovery System

12 in. (30.5cm) Parachute
  • Length

24.62 to 25.1 in (62.53 to 63.75 cm)
  • Diameter

.98 in (2.48 cm)
  • Weight

1.95 to 2.45 oz (55.28 to 69.45 g)
  • Fin Material

Molded Plastic

Other Popular Starter Sets

This product recommended for children ages 10+ with adult supervision for those under 12, and rocketeers of all ages.