O.S. GT15 Gas Engine

In 1936, Shigeo Ogawa set up his original machine-shop, making model steam engines. At the same time the first 1.6 cc O.S. Type-1 miniature gasoline engine was made. 200 production models sold under the name “Pixie” were exported. A short time later the O.S. brand came about. For all these years, OS Engines have been a recognizable name of power, reliability, cutting edge design and quality in the model engine arena. From their much loved “Max” series, to their unique Wankel rotary engine, to the powerful O.S. Speed series engines, they have something for everyone. HobbyKing is proud to be able to bring a wide selection of the latest O.S. Engines to you.

O.S.’s GT line of gasoline engines boast power and fuel economy that have made them favorites among flyers of all sizes of R/C aircraft — and you’ll find those same attributes in the compact GT15. The PD-08 pump-equipped carburetor delivers fuel consistently at any attitude or altitude, and the IG-06 ignition system provides dependable starts. Mount the GT15 in your next project…or drop it into any .60 2-stroke or .90 4-stroke size model to enjoy all of the advantages of gasoline power. A special roller bearing on the lower end of the connecting rod allows you to run 50:1 fuel/oil mixture, which is very clean running compared to messy nitro fuel. Balanced, optimized crankshaft for vibration control and improved performance. Twin ball bearings support the hardened steel cranksft for the ultimate in efficiency. Fuel for this engine is recommended to use 87 octane and a quality 2-stroke oil, mixed at 50 parts fuel, to 1 part oil.