What are the two types of couplers used on the UPRR?

The two types of couplers used on the Union Pacific Railroad (UPRR) are High Strength and Standard couplers. High Strength couplers are designed to handle heavier loads and provide additional durability, making them suitable for freight trains that operate under demanding conditions. These couplers are engineered to withstand greater tensile forces, ensuring the train's integrity during travel.

Standard couplers, on the other hand, are widely utilized and provide a reliable connection for various rail cars in general service. They serve a different functional role, focusing on versatility and compatibility across a broader range of equipment. This distinction between the High Strength and Standard couplers highlights the UPRR's approach to diverse operational needs, ensuring safety and efficiency in their rail operations.