Single Cylinder Vacuum Stirling Model Toy, Color: Transport Edition Overview A compact, transport helicopter inspired Stirling engine model with a horizontal single cylinder vacuum Stirling structure. Designed for display, demonstration, and handson assembly, it combines metal construction and visible mechanics for an engaging mechanical model. Key benefits Clear demonstration of Stirling engine principles using a horizontal single cylinder vacuum design, useful for education and hobby display. Durable metal construction provides stable motion and a look with gold and silver finishes. Compact and portable: light enough for tabletop demonstration and detailed enough for close inspection. Simple assembly and manual start allow users to learn basic mechanical assembly and observe real running performance. Materials and build Body: aluminum alloy and stainless steel Cylinder: stainless steel Additional components include copper parts where specified Surface finish: gold and silver tones for a refined appearance Performance and operation Engine speed range: 300 to 1000 rpm Typical continuous running time: up to 20 minutes per start Starting method: rotate the rotor clockwise to initiate motion Rotor: twoblade rotor attaches to the spindle and is secured with the screw Assembly and setup Assemble the twoblade rotor by screwing it into the spindle and tightening the screw Install the base foot cup to secure the engine on a flat surface No special tools required beyond basic screw tightening for final assembly Dimensions and weight Product weight: 700 g Package dimensions: 20 x 14 x 11 cm Package weight: 867 g Packing: boxed Package contents 1 x Single Cylinder Vacuum Stirling Model Toy (Transport Edition color) Suggested use scenarios Classroom demonstration: Illustrate thermodynamic and mechanical principles in physics or engineering lessons. Hobbyist display: Add to a model collection or use as a desktop mechanical conversation piece. Handson learning: Assemble and operate to develop practical skills in mechanical assembly and basic model maintenance. Notes Follow the included assembly steps for reliable operation. Continuous running time depends on operating conditions and setup.