Home Estes 9753 Pack of Two 24-Millimeter to 29-Millimeter Engine Adapters, Paper Motor Adapters

Estes 9753 Pack of Two 24-Millimeter to 29-Millimeter Engine Adapters, Paper Motor Adapters

Vendor: Vendor: Estes
Barcode: 047776097537
Sale price $14.37
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Estes 9753 Pack of Two 24-Millimeter to 29-Millimeter Engine Adapters, Paper Motor Adapters

Estes 9753 Pack of Two 24-Millimeter to 29-Millimeter Engine Adapters, Paper Motor Adapters

$14.37
  • Pro Series II model rocket kit based on the SR-71 Blackbird aircraft
  • 29mm motor mount compatible with E and F engines (sold separately)
  • High-speed flight profile with realistic scale appearance
  • Large parachute recovery system for safe landings
  • Designed for experienced builders and advanced rocketry flights


The Estes 24-Millimeter to 29-Millimeter Engine Adapters provide flexibility and innovation for model-rocket builders who love to experiment. Designed for aerospace enthusiasts at all levels, these precision-built orange adapters let you use 24-millimeter engines in rockets designed for 29-millimeter motors, giving you more versatility for your next STEM rocketry project. Ideal for STEM education, engineering classrooms, or aerospace learning programs, this adapter set encourages experimentation with propulsion, thrust, and stability. Builders can safely explore how different engine configurations affect flight performance, enabling hands-on learning in physics, engineering, and aerospace principles. It can adapt 29-millimeter model rockets for use in Estes C11, D, E, and E30 composite engines, as well as other 24-millimeter composite single-use and RMS motor systems, without requiring you to modify your rocket. Built from durable, lightweight materials, the Estes 24-Millimeter to 29-Millimeter Engine Adapters are reusable and include 2 easy-to-install engine adapters, ensuring consistent reliability across multiple launches. Perfect for both students and seasoned rocketeers, this pack is an essential accessory for those who love testing, optimizing, and understanding real-world flight mechanics. Always follow the NAR (National Association of Rocketry) model-rocket safety code during rocket kit operations. Estes rocket kits are built from the highest-quality components and designed around the unforgettable experience of pressing launch. Our hobby and STEM educational science products range across all skill levels, interests, and power levels. Unleash the space dreamer and science enthusiast in you with an Estes model rocket!

Frequently Asked Questions

Can I use 24mm engines in my 29mm motor mount rocket?
Yes. These adapters let you use 24mm engines (like Estes C11, D, E, and E30 composites) in rockets designed for 29mm motors, without modifying your rocket. You get 2 adapters per pack.
What engines are compatible with these adapters?
The adapters work with Estes C11, D, E, and E30 composite engines, as well as other 24mm composite single-use and RMS motor systems.
Do I need to modify my rocket to use these adapters?
No. The adapters are designed to fit directly into your 29mm motor mount without requiring any modifications to your rocket.
Are these adapters reusable?
Yes. Built from durable, lightweight materials, the adapters are reusable and designed to provide consistent reliability across multiple launches.
How many adapters are in the pack?
The pack includes 2 easy-to-install engine adapters.
Are engines included with these adapters?
No. Engines are sold separately. You'll need to purchase 24mm compatible engines for your launches.