Comparing Locomotive Controls: Similarities and Differences Between Models and Fuel Types

When operating a railway locomotive, one might wonder if the controls for different models, especially those for diesel and electric locomotives, are as similar as the controls in automobiles. This article explores the intricacies of modern locomotive controls, highlighting their similarities and differences to provide a comprehensive understanding.

Standard Controls in Modern Diesel Locomotives

In modern diesel locomotives, a standardized control stand is widely used, making it easier for engineers to operate a variety of locomotive models. These control stands, known as the standard control stand, are almost identical on both EMD (Electro-Motive Diesel) and GE (General Electric) locomotives, with the reverser, throttle, and brake levers, among other controls, positioned in the same location and configuration.

This standard control stand is positioned to the left of the engineer and is designed to be operated primarily with the left hand. The controls include the reverser throttle and brake levers, as well as horn and bell controls. The consistency in the layout of these controls makes it easier for engineers to switch between different locomotive models or even adapt to new ones more quickly.

Consistency Across Locomotive Classes

Despite the variety in locomotive sizes, from the smallest switch engines to the largest road locomotives, the standard control stand remains largely the same. The only significant difference is the type of gauges used, with older locomotives featuring analog gauges and newer models equipped with computer screens.

These modern computer screens provide additional control options, including features for fuel saving systems, distributed power locomotives, and positive train control. This upgrade in technology allows engineers to manage various aspects of locomotive operation more efficiently and safely.

Historical Control Variations

While the standard control stand is now the norm, there was a time when large road locomotives had a different control layout known as the desktop control stand. This layout featured motor yacht-style throttle and brake levers, which many engineers found less than ideal.

These controls, with their motor yacht-style design, tended to force engineers into a hunched-over posture while operating the locomotive. Due to these ergonomic concerns, the desktop control stand has been largely discontinued and is no longer installed in new locomotives produced in recent years.

Controls in Electric Locomotives

While modern electric locomotives offer a different set of controls, developers of these locomotives have also adopted some of the principles found in the standard control stand used in diesel models. Unfortunately, I do not have direct experience with the controls of modern electric locomotives, as my 24 years of experience as a locomotive engineer have primarily involved diesel models.

If you are interested in the differences and similarities in controls between diesel and electric locomotives, you might find it helpful to consult a source or individual with experience in both types of locomotives. However, the basic principles and ergonomic design choices often seen in modern diesel locomotives are likely to be present in electric locomotives as well, ensuring a smoother transition for engineers.

Furthermore, the operational controls in both types of locomotives are designed to prioritize safety and efficiency, with features like the automatic brake lever positioned at the rear of the control stand, the independent brake lever, and other essential controls easily accessible and intuitive to use.

Conclusion

While the controls of American railway locomotives do have some differences between models and fuel types, there is a notable consistency in their design to simplify the operation and maintenance of these powerful machines. The standard control stand, particularly in modern diesel locomotives, exemplifies this consistency and ease of use.

As technology continues to advance, it is likely that electric locomotives will also adopt and improve upon the ergonomic and intuitive design features found in diesel locomotive controls. This evolution ensures that railway operations remain safe and efficient, benefiting both engineers and passengers alike.

Key Takeaways:

Standard Control Stand: Identical layout on EMD and GE diesel locomotives, designed for ease of use. Computer Screens: Features for fuel saving systems, distributed power, and positive train control. Historical Control Variations: Desktop control stand used in large diesel locomotives, now discontinued. Electric Locomotives: Similar design principles to diesel locomotives, optimized for safety and efficiency.