• Aluminum Alloy Copper Stainless Steel
• 🚁【Aviation-Themed Engineering Design】Combines a transport helicopter aesthetic with horizontal single-cylinder vacuum Stirling mechanics. Features rotor-blade air-cooling and sleek modern styling for a captivating display of thermodynamics in action
• 🚁【Durable Metal Construction】Built with corrosion-resistant aluminum alloy, stainless steel, and copper for longevity. Polished gold-silver finish enhances its premium look, making it a striking desk decor or collector’s item
• 🚁【Interactive STEM Learning Tool】Demonstrates gas expansion/compression cycles, offering hands-on insight into physics principles. Ideal for students, educators, or hobbyists to explore mechanical engineering concepts
• 🚁【Easy Operation & Maintenance】Simple assembly (2-blade rotor, base cup) and fuel with 95% alcohol. Runs 20 minutes at 300-1000 RPM. Includes syringe-lubrication system for low-maintenance, extended durability
• 🚁【Safety-Certified Gift Idea】Designed for ages 16 with clear safety guidelines (avoid rotor contact, high-temperature burns). A unique gift for STEM enthusiasts, engineers, or aviation fans seeking functional decor or educational projects