Estes 7220

Estes 7220 Crossfire ISX Model Rocket Kit

Instruction Manual

Introduction

The Estes 7220 Crossfire ISX model rocket kit is designed for intermediate-level enthusiasts aged 10 and above (adult supervision recommended for those under 12). This kit provides a hands-on experience in engineering and aerospace, allowing you to build and launch a model rocket that can reach impressive heights.

The Crossfire ISX is an easy-to-assemble kit that includes all reusable parts necessary for launch, such as the nose cone, body tube, and recovery parachute. The estimated assembly time is approximately 1 hour, not including glue and paint drying time.

Safety Information: This product is not a toy. Recommended for ages 14+.

Estes Crossfire ISX Rocket Kit

Image: The Estes Crossfire ISX rocket kit, showcasing its sleek design and 'Intermediate' skill level rating for ages 10+.

Kit Contents

The Estes 7220 Crossfire ISX kit includes the following components:

  • Crossfire ISX rocket parts
  • Design decals
  • Recovery parachute
  • Instruction manual

Please inspect all parts upon opening the kit to ensure everything is present and undamaged.

Estes Crossfire ISX Kit Contents

Image: A visual representation of the Estes Crossfire ISX rocket kit contents, including the rocket components, parachute, and instructions, alongside its dimensions and weight.

Setup and Assembly

Assembly of the Crossfire ISX rocket requires careful attention to detail. The estimated assembly time is approximately 1 hour, not including drying times for glue and paint.

Required Tools and Supplies (Sold Separately):

  • Scissors
  • Ruler
  • Fine sandpaper
  • Carpenter’s glue
  • Plastic cement
  • Hobby knife
  • Masking tape
  • White primer
  • Gloss red and white paint

Follow the detailed instructions provided in the kit for step-by-step assembly. Ensure all glued parts are completely dry before proceeding to the next step or handling the rocket.

Tools and Supplies for Estes Crossfire ISX Assembly

Image: A visual list of tools and supplies required for building the Estes Crossfire ISX rocket, including scissors, sandpaper, various glues, paints, and a hobby knife.

Operating Instructions (Launch)

To launch your Estes 7220 Crossfire ISX rocket, you will need additional equipment and supplies, sold separately:

  • Estes rocket engines (compatible with A8-3, B4-4, B6-4, C6-5, C6-7)
  • Starters
  • Recovery Wadding
  • Estes Porta-Pad II Launch Pad
  • Electron Beam Launch Controller
  • 4 high-quality 1.5-volt AA alkaline batteries for the launch controller

Launch Safety Guidelines:

  1. Always perform a pre-launch check of your rocket and launch system.
  2. Select a large, open launch area free of dry weeds or brown grass to prevent fires.
  3. Ensure spectators and operators stand back at least 15 feet from the launch pad.
  4. Insert the safety key into the launch controller only when ready to launch.
  5. Issue a clear countdown before pressing the launch button.
  6. Always adhere to the NAR (National Association of Rocketry) model rocket safety code.
Estes Crossfire ISX Flight Sequence

Image: A six-step diagram illustrating the flight sequence of the Estes Crossfire ISX rocket, from setup on the launch pad to engine ignition, ascent, parachute deployment, and descent.

Official Product Video: Estes Rocket Launch Sets

Video: An informational video from Estes Industries, LLC, demonstrating the process and safety considerations for launching Estes model rocket sets.

Maintenance

The Estes Crossfire ISX rocket is designed for multiple flights. After each launch, inspect the rocket for any damage to the fins, body tube, nose cone, or recovery system. Repair any minor damage using appropriate glues and materials before the next flight. Ensure the recovery parachute is clean and free of tangles.

Troubleshooting

If your rocket experiences issues during launch or flight, consider the following:

  • Failure to launch: Check connections between the launch controller, igniter, and engine. Ensure batteries in the launch controller are fresh and correctly inserted.
  • Erratic flight path: Verify that fins are securely attached and aligned correctly. Ensure the nose cone is firmly seated.
  • Recovery system failure: Confirm that recovery wadding was properly inserted to protect the parachute from engine ejection gases. Ensure the parachute is not tangled and deploys freely.

For persistent issues, refer to the detailed troubleshooting section in the included paper manual or contact Estes customer support.

Specifications

FeatureDetail
Model Number7220
Skill LevelIntermediate
Recommended Age10+ (with adult supervision under 12)
Length15.6 inches (39.6 cm)
Diameter0.98 inches (25 mm)
Weight1.3 oz (36.9 g)
Projected Max Altitude1,150 ft (350 m)
Recommended EnginesA8-3, B4-4, B6-4, C6-5, C6-7
Launch SystemPorta-Pad II (sold separately)
Recovery System12-inch (30.5 cm) Parachute
Fin MaterialLaser-Cut Balsa Wood
Material TypePlastic
Estes Crossfire ISX Technical Specifications

Image: A graphic detailing the technical specifications of the Estes Crossfire ISX rocket, including recommended engines, maximum altitude, launch system, recovery system, and fin material.

Warranty Information

The Estes 7220 Crossfire ISX Model Rocket Kit comes with a 1-year warranty against manufacturer defects. Please retain your proof of purchase for any warranty claims. For warranty service, contact Estes customer support.

Support

For additional assistance, questions, or to explore other Estes products, please visit the official Estes website or their Amazon store:

Visit the Estes Store on Amazon

© 2026 Estes Industries. All rights reserved.

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