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Engine model series Stirling engine helicopter

Experience the thrill of building a fully functional Stirling engine helicopter model with precision engineering and durable, high-quality materials.
$229.99 USD $269.99 USD Save $40.00 USD
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Product Highlights
✅DIY Assembly: Engaging hands-on experience with detailed mechanical construction.
✅16-Cylinder Stirling Engine: Innovative cold/hot cylinder opposition design for stable power output.
✅Durable Materials: Ultra-hard, maintenance-free glass pistons and 6061 aluminum alloy components.
✅Realistic Power Transmission: Visible gear mechanics driving both main and tail rotors.
✅Collector’s Item: Combines physics, mechanics, and design for mechanical beauty.
Product Parameters
Model Number: HX-15
Base Material: Black walnut wood
Product Dimensions (mm): 250 x 135 x 140
Gear Material: Brass
Net Weight (g): 400
Flywheel Material: Brass
Total Weight with Packaging (g): 550
Heating Cylinder Material: 304 stainless steel
Flywheel Diameter (mm): 29.5
Piston Rod Material: 304 stainless steel
Pulley Diameter (mm): 8
Body Material: 6061 aluminum alloy
Piston Diameter (mm): 9
Cylinder Sleeve Material: 6061 aluminum alloy
Heating Cylinder Outer Diameter (mm): 11.4
Propeller Material: 6061 aluminum alloy
Precision Bearings (pcs): 10
Alcohol Lamp Material: 6061 aluminum alloy
Bevel Gears (pcs): 4
Piston Material: Maintenance-free, wear-resistant glass
Circular Gears (pcs): 2
304 Screws + Set Screws (pcs): 44
Difficulty: ★★☆☆☆
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Principle of Operation

The HX-15 Stirling Engine Helicopter Model features a 16-cylinder inclined disc Stirling engine, utilizing an opposing cold and hot cylinder structure. This design prevents heat transfer between the cylinders, improving heat exchange efficiency and ensuring a stable temperature difference for consistent power output.

Material & Product Advantages

Crafted with glass, which is harder than metal, the model’s cylinder pistons offer enhanced sealing, wear resistance, and durability. The lightweight design prevents rust or damage during high-speed operation, delivering ultra-hard, maintenance-free performance. This combination maximizes the efficiency and longevity of the engine.

Power Transmission & Playability

The mechanical structure of this model is highly intuitive, with opposing pistons moving in opposite directions. Circular gears adjust the speed ratio, while bevel gears change the power output direction by 90°. This power is then transmitted to both the helicopter's main and tail rotors, showcasing the model’s mechanical beauty. Designed to maximize playability, it blends physics and mechanics to emphasize the dynamic power of the Stirling engine.

Engineered for Power,
Crafted for Precision

Advanced Stirling technology brings mechanical beauty to life.

Engineered for Power,
Crafted for Precision

Advanced Stirling technology brings mechanical beauty to life.

Purchase Notes

Checking Parts

Upon receiving your order, please check the completeness of the parts immediately. If you find any missing parts, contact our customer service within 48 hours to arrange a free replacement. After 48 hours, the cost of replacement parts will be the responsibility of the buyer.

Lost Parts

If parts are lost during assembly and you need replacements, please contact our customer service to purchase them separately.

Assembly Assistance

If you encounter difficulties in accurately completing the assembly, please contact our customer service. We will provide guidance through video and written instructions to help you successfully complete your project.

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