OS Speed ⁽⁷⁷⁾

OS is one of the world's leading companies that exclusively produces model combustion engines and steam locomotives.

The high standards of craftsmanship developed over the 80 year history of OS engine production introduced the world's first model rotary engine and more recently to electronic fuel injected engines ranging from the small engine with a displacement of 0.10 to to the larger five-cylinder four-stroke radial engine 3.0.

Modern precision machines and carefully selected, high-quality materials are used to produce OS motors to ensure consistent performance and a long service life. OS will always look for "quality and performance" among the worldwide users.