This document provides safety instructions and operational guidelines for the O.S. 46VX-DF engine, a model aircraft engine designed for use with nitromethane-based fuels. It emphasizes safety precautions regarding the propeller, fuel handling, and exhaust gases, advising users to operate the engine only in open areas.
| Bore | 22.0mm (0.866in.) |
|---|---|
| Stroke | 19.6mm (0.772in.) |
| Practical r.p.m. | 2,500-28,000 |
| Power output | 2.5BHP/23,000r.p.m. |
| Shaft thread | UNF1/4-26 |
The engine is designed to accept high-nitromethane fuels, but castor-oil should be substituted with a synthetic lubricant if the fuel contains more than 40-50% nitromethane.
The recommended glow-plug is No.8.
For consistent performance and long engine life, the fuel must contain not less than 18% lubricant.