Joytopiaminds Gamma Type Alcohol-Powered Stirling Engine Airplane Model with Quartz Glass Heater for Physical Science Experiment Display & Decoration

• ✈️ Aviation-Themed Stirling Demonstrator: Features a detailed biplane design with functional nose-mounted Stirling engine. Watch the propeller spin realistically when heated by alcohol lamp - designed as a display piece (non-flying) with dynamic visual motion
• 🔩 Aircraft-Grade Metal Construction: CNC-machined aluminum alloy body with stainless steel components and polished finish. Features wear-resistant pistons and explosion-proof quartz glass heating tube for safe thermal cycling during operation
• ✨ Precision Engineering Showcase: Demonstrates thermodynamic principles through visible mechanics. Measures 20×11×14cm (7.9×4.3×5.5) with 730g substantial weight - perfect desk display for offices, classrooms, or collections
• 🔥 Alcohol-Powered Operation: Simple startup using 95% alcohol (not included). CAUTION: Heating surfaces exceed 150°C - never touch during operation. Strictly no oil lubrication required on cylinders/pistons
• 📚 Complete STEM Learning Kit: Single-set package includes fully assembled model (no assembly needed). Ideal physics teaching aid for understanding energy conversion - exceptional gift for aviation/engineering enthusiasts ages 15+

Specifications: .Color: As Shown .Material: Aluminum Alloy + Stainless Steel .Product Weight: 730g .Package Size: 20 x 11 x 14cm .Package Weight: 850g .Packing: Box Package Content: .1Set x Airplane Model Package Including .1Set x Airplane Model