by slchub
From the UP SSI:
Item 4-A: Locomotive Instructions
Limit freight trains to eight locomotives on the lead consist. The maximum of eight locomotives includes units that are working, isolated, dead-in-consist, or dead-in-train immediately behind the locomotive consist. Train management may authorize a higher number of locomotives on freight trains, but must not exceed power axle limitations.
The eight locomotive limit does not apply to power transfers, with or without cabooses. Limit power transfers to a maximum of 25 locomotives unless train management authorizes you otherwise.
Do not move or switch more than eight coupled locomotives within locomotive servicing facilities. This includes movements between service tracks and train yards.
Updated: 6/17/2006
Item 4-A: Locomotive Instructions
Limit freight trains to eight locomotives on the lead consist. The maximum of eight locomotives includes units that are working, isolated, dead-in-consist, or dead-in-train immediately behind the locomotive consist. Train management may authorize a higher number of locomotives on freight trains, but must not exceed power axle limitations.
The eight locomotive limit does not apply to power transfers, with or without cabooses. Limit power transfers to a maximum of 25 locomotives unless train management authorizes you otherwise.
Do not move or switch more than eight coupled locomotives within locomotive servicing facilities. This includes movements between service tracks and train yards.
Updated: 6/17/2006