Ruling Gradient
The ruling gradient of a section of railway line between two major stations is the gradient of the steepest stretch. The ruling gradient governs the tonnage of the load that the locomotive can haul reliably.
Read more about this topic: Hillclimbing (railway)
Famous quotes containing the word ruling:
“We are the only class in history that has been left to fight its battles alone, unaided by the ruling powers. White labor and the freed black men had their champions, but where are ours?”
—Elizabeth Cady Stanton (1815–1902)