Editing Cowcatcher (section)

==Design==
[[File:Old Timers at the Lake Superior Railroad Museum, Duluth MN.jpg|thumb|Old Timers at the [[Lake Superior Railroad Museum]], Duluth, Minnesota]]
On a mainline locomotive, the cowcatcher has to successfully deflect an obstacle hit at speed. The design principle is to push the object upwards and sideways out of the way and not to lift the locomotive on impact.

The typical shape is a blunt wedge with a shallow V-shape in plan. In the later days of [[steam locomotive]]s, the front [[coupling (railway)|coupler]] was designed to swing out of the way also, so it could not get caught up; this was called a 'drop coupler pilot'.

Early on, cowcatchers were normally fabricated of bars mounted on a frame; later on, sheet metal cowcatchers were often used for their additional smoothness, and some cast steel cowcatchers were employed for their mass and smooth shape. Early diesel locomotives followed the same plan.

Cowcatchers on early [[switcher locomotive]]s in the US often had steps (called "footboard pilots") to allow yard workers to ride with the locomotive. In some countries, footboard pilots are outlawed for safety reasons, and have been removed. Modern locomotives often have front and rear platforms with safety rails, or deeply recessed steps, where workers can ride.