What position must the brake valve handle be in for 60 seconds to regain control after a penalty brake application?

To regain control after a penalty brake application, the brake valve handle must be in the suppression position for 60 seconds. This action allows the train's brake system to stabilize and prepare for a controlled release after the emergency or penalty application has occurred. The suppression position serves to minimize further brake actions by reducing brake pipe pressure, effectively halting any additional braking while the technician or engineer assesses the situation and allows the train to regain normal operating conditions.

The other positions such as release, full service position, and minimum reduction would not effectively achieve the goal of regaining control in the context of a penalty application. For example, simply placing the handle in the release position could lead to an unintended release of the brakes without prior stabilization, while full service would engage a braking action that does not aid in regaining control. Similarly, minimum reduction would not provide the necessary stabilization required after a penalty situation, as it also involves applying a level of braking rather than minimizing brake response. Thus, suppression is critical in managing the system effectively after such an application.