This is an engine user manual, which mainly introduces the safety use, installation, maintenance and other contents of the engine
This manual provides instructions for the O.S. FR5-300 Sirius, a five-cylinder radial overhead-valve four-stroke engine with a total displacement of 49.75cc. It is designed for use in very large radio-controlled aircraft. The document covers safety warnings, installation procedures, and the use of supplied tools and accessories.
| Displacement | 49.75cc (3.04cu.in) |
|---|---|
| Cylinder Configuration | Five-cylinder radial |
| Valve Type | Overhead-valve |
| Cycle Type | Four-stroke |
| Intended Use | Model aircraft |
The engine has a total displacement of 49.75cc (3.04cu.in).
It is a five-cylinder radial overhead-valve four-stroke engine.
Supplied items include a radial motor mount set, mounting screws, lock washers, blind nuts, glow plug leads, a woodruff key, a valve adjusting tool kit, a choke valve rod, and a display stand.