RETROL R01 1/12 Scale Hot Air Pumping Engine Model Water-cooled Stirling External Combustion Engine Mechanical Toy Set

Features:

.Scientific and Educational Value: The 1/12 scale Hot air pumping engine belongs to the closed-cycle engine model, the category of external combustion engines, widely used in various places such as railways for water tank filling, public buildings, hotels, universities, shelters, urban and rural homes, and all types of factories.
.Designed with a compact and neat appearance, this retro & appealing engine model uses butane gas (lighter oil) as fuel with a modern water tank and gas storage tank and adopts a water-cooled circulation system, ensuring a reliable operating process.
.Easy-maintenance & Reliability: Featuring fewer moving parts to avoid wear or tear and requires minimal maintenance. This model boasts a longer single operating time and service life, making it beginner-friendly for mechanical enthusiasts.
.Staring Method: To start the engine, simply fill the gas tank with butane gas, turn on the gas valve switch, ignite the boiler under the engine, add about 80ml of water to the water tank, heat it for about a minute, and then start the engine by hand-cranking the flywheel.
.Creative Gift: The engine model is suitable as an exquisite desktop decoration and a wonderful and impressive collection craft. Perfect as a high-end model holiday gift for most mechanical enthusiasts, including teachers, students, technology enthusiasts, and collectors.

Specifications:

.Material: Brass
.Brand: RETROL
.Form: Ready to Run
.Cyilinder Diameter: 13mm
.Stroke: 24mm
.Speed: 100-1000rpm(A continuous running time of 15 minutes on a single gas tank.)
.Cooling Mode: Water Pump Cooling
.Product Dimensions: 12.5 x 7.5 x 12.8cm
.Product Weight: 900g
.Package Dimensions: 20 x 20 x 20cm
.Package Weight: 1350g
.Packing: Box
.Ages: 14+

Packing List:

.Engine*1
.Manual*1