R.F to statement scale; 1=50000

I'm sorry, but I do not understand what you mean by "R.F to statement scale; 1=50000". Can you please provide more context or clarify your question?

R.F stands for Representative Fraction, and it is used to represent the relationship between distances on a map and the actual distances on the Earth's surface. In this case, the R.F is given as 1=50000.

This means that 1 unit on the map represents 50000 units in the actual world. For example, if you measure a distance of 1 centimeter on the map, it would correspond to a distance of 50000 centimeters (or 500 meters) in the real world.