Stirling Engine Helicopter Model Kit with Base – DIY Heat Powered Hot Air Engine, Metal Aircraft Assembly Kit with Alcohol Lamp, STEM Physics Educational Model for Teens & Adults

This helicopter-style Stirling engine model kit combines mechanical assembly with a heat-powered engine system, offering both an interactive building experience and a functional demonstration model. The design features a detailed aircraft structure with a rotating main rotor that operates when the engine is running. This model is intended for educational and display purposes and does not fly. The kit includes multiple metal components that require assembly. By following the included instructions, users can complete the build while gaining a better understanding of mechanical structure and basic thermodynamic principles. Once assembled, the model operates using heat generated from an alcohol lamp. To use, fill the lamp with approximately 95% alcohol, light it, and place it under the heating cylinder for preheating. The flywheel must be turned manually to start the engine. Under normal conditions, the engine can maintain continuous operation once running. For safety, avoid touching heated parts during use and do not apply lubrication to the cylinder or piston. The model is made from aluminum alloy, copper, and stainless steel, with precision-machined parts that provide durability and structural stability. It also includes a base for display, making it suitable for desks, classrooms, or collections. With a body length of approximately 386.6 mm, rotor diameter of 330 mm, and a product weight of about 995 g, this model offers a balanced size for both operation and display. This product is suitable for teens (12+) and adults interested in engineering models, STEM education, and hands-on projects.

• 【Heat Powered Helicopter Model】Designed as a helicopter-style mechanical model driven by a hot air engine; the rotor spins during operation for visual demonstration (not capable of flight)
• 【DIY Assembly Experience】Includes multiple precision parts for hands-on assembly; users can follow instructions to build and understand the working structure step by step
• 【Durable Metal Materials】Constructed from aluminum alloy, copper, and stainless steel with CNC-machined components for stable fit and long-term use
• 【Alcohol Fuel Operation】Uses approximately 95% alcohol with an included alcohol lamp; requires preheating and manual flywheel start to achieve continuous operation
• 【Educational & Display Use】Suitable for STEM learning, classroom demonstrations, and desktop display; recommended for ages 12+ with adult supervision