Estes Flying Model Rocket Kit K-46 Astron Shrike EST 1246
The Estes K-46 Astron Shrike™ is a faithful revival of a classic rocket from the golden age of model rocketry. Part of our From the Vault series, this advanced-level kit combines two-stage power with payloader capability, along with a balsa wood nose cone and laser-cut balsa fins that bring authentic craftsmanship to every build.
Capable of soaring up to 1,500 feet on standard 18 mm engines, the Astron Shrike delivers both nostalgic charm and high-performance thrills. Its sleek, historic design makes it a standout addition to any rocket collection.
- SKILL LEVEL: Advanced
- RECOMMENDED ENGINES:
Booster: A8-0, B6-0, C6-0
Upper Stage: A8-3, A8-5, B6-6, C6-5, C6-7 - PROJECTED ALTITUDE: 1500 ft. (457 m)
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The K-46 Astron Shrike™ brings back a legendary model from Estes’ early days. Originally released in the golden era of model rocketry, this design has been reintroduced as part of the exclusive From the Vault series. The Shrike combines historic appeal with modern craftsmanship, giving experienced builders a chance to own and fly a piece of rocketry history.
Two-Stage Power and Payloader Design
What makes the Astron Shrike truly unique is its combination of multistage flight and payloader capability. The booster stage provides the extra energy needed to reach altitudes up to 1,500 feet, while the upper stage payload section allows rocketeers to experiment with small cargo or creative mission ideas. This dual function makes it one of the most versatile kits in the series.
Balsa Construction for True Vintage Craftsmanship
The Astron Shrike features a balsa wood nose cone and laser-cut balsa fins, offering builders the classic materials that defined early model rocketry. These lightweight wood components shape beautifully, sand smoothly, and create a polished finish that feels authentic to the era. Combined with modern precision cutting, the Shrike offers both nostalgia and elevated performance.
High-Altitude Thrills
The Astron Shrike flies on standard 18mm Estes engines, with a range of booster and upper-stage combinations. Recommended engines include A8-0, B6-0, and C6-0 for the booster, and A8-3, A8-5, B6-6, C6-5, and C6-7 for the upper stage. With proper setup, you can enjoy dramatic two-stage flights followed by smooth recoveries under the 12 inch parachute.
What You’ll Need
To complete your Astron Shrike build, you’ll need basic hobby tools and supplies: pencil, ruler, masking tape, scissors, hobby knife, carpenter’s glue, fine and extra-fine sandpaper, primer, paint, and an optional clear coat. For launch, pair your Shrike with the Porta-Pad® II Launch Pad, Electron Beam® Launch Controller, recovery wadding, and your choice of recommended engines.
Length - 29.5"(74.9cm)
Diameter - 0.98"(24.9mm)
Estimated Weight - 2.5oz(70.9g)
Projected Max Altitude - 1500'(457m)
12" Parachute Recovery
1/8" Launch Lug
Skill Level 3 Advanced
Laser cut Balsa Fins
Plastic Nose Cone
Needed to Build (sold separately) Hobby Knife, Fine Sandpaper, Sanding Block, Scissors, Yellow Glue, Ruler, Soft Lead Pencil, White Primer, Red & White Paint, Clear Coat (optional)
Recommended Engines:
Booster: A8-0, B6-0, C6-0
Upper Stage: A8-3, A8-5, B6-6, C6-5, C6-7
Model Rocket Kits are rated by Skill Level
1 Beginner
2 Intermediate
3 Advanced
4 Expert
5 Master
If you are just starting in the hobby start at the beginner level and move up from there at your own pace.
What is needed to build and fly
All model rockets come in kit form that require assembly. The materials are primarily cardboard tubes, balsa or plastic fins and nose cone. Materials will vary by model and are typically specified in the description of each kit.
Additional supplies will be necessary to build and finish your model rocket kit and may include:
Scissors, Hobby Knife
Ruler
Wood Glue, Model Cement or CA(Super Glue)
Sandpaper
Masking Tape
Finishing Supplies like:
Wood Filler
Sealer/Primer
Paint
Launching Equipment and Supplies like:
Recovery wadding
Launch Pad
Launch Controller
Power supply
Model Rocket Motors and Igniters
A safe place to fly using guidelines from the National Association of Rocketry Safety Code
