If you pick up a locomotive en route and add it to the lead consist of the train, how do you determine the EPA and EDBA of the locomotive picked up if it isn't listed on the train paperwork?

If you pick up a locomotive en route and add it to the lead consist of the train, how do you determine the EPA and EDBA of the locomotive picked up if it isn't listed on the train paperwork?

• A. Reference SSI Item 4 Locomotive Information
• B. Check the locomotive's speed rating
• C. Use the data from the last trip
• D. Estimate based on age of locomotive

Answer: (A)

When you add a locomotive to the lead and it isn’t listed on the train paperwork, you must pull the exact, official data for that unit. The EPA and EDBA values are locomotive-specific and are documented in SSI Item 4 Locomotive Information, which is the authoritative source for these parameters. Relying on a speed rating, last trip data, or guessing based on age won’t give you the correct EPA/EDBA and could affect braking and performance calculations.

When you add a locomotive to the lead and it isn’t listed on the train paperwork, you must pull the exact, official data for that unit. The EPA and EDBA values are locomotive-specific and are documented in SSI Item 4 Locomotive Information, which is the authoritative source for these parameters. Relying on a speed rating, last trip data, or guessing based on age won’t give you the correct EPA/EDBA and could affect braking and performance calculations.