This is a manual for OS engine
The document is a user manual for the O.S. FSα-155-P, a single-cylinder overhead valve four-cycle engine equipped with a fuel pump system (PD-08) and a Type 70R carburetor integrated with a regulator. It is designed for model aircraft ranging from sport and aerobatic types to scale models.
| Engine Type | Single cylinder overhead valve four cycle engine |
|---|---|
| Fuel System | Equipped with a fuel pump system |
| Carburetor Type | Type 70R integrated with regulator |
| Fuel Requirement | Methanol based fuel containing not less than 18% castor oil |
| Standard Silencer | F-6020 Silencer Assembly |
It should be operated on a methanol based fuel containing not less than 18% (volumetric) castor oil, or a top quality synthetic lubricant.
For sport and aerobatic models, use 16x8-12 or 17x8-12. For scale models, refer to the table in the manual.