OS Engines

O.S. is one of the worlds leading companies devoted solely to manufacturing model engines and live steam locomotives. The high standards of their skilled craftsmanship, that have been developed through the 80 years of O.S. engine production history, introduced the world's first model rotary engine, and, more recently, electronic fuel injection system engines, ranging from the small displacement .10 engine up to the larger five cylinder radial four-stroke 3.0 engine. For the production of O.S. engines, modern precision machinery and carefully selected top quality materials are employed to ensure consistent performance and long life of flight. O.S. will always seek for "quality and performance" with their users.

Founder Shigeo Ogawa has been highly fond of tinkering with machines from childhood. His love for models in particular started when he received a special award at a student model science fair, which became the start of is love for model engine building. This eventually landed him in an industrial school to learn the engineering fundamentals, eventually achieving the FAI Paul Tissandier Diploma in 1984, the highest honor in the aviation world. He is also widely known among fans in Japan as an avid live steam locomotive enthusiast.