Originally Posted by Forrest Jerome:
what does this mean (from the franklin site).
"There is a continuous equalisation system on each side of the locomotive from the leading drivers to the rear truck."
This means that the 60000 is sprung like all 4-X-X locomotives except the PRR E6 Atlantic (the lead truck of the E6 was equalized with the #1 driver; the #2 driver was equalized with the trailer).
In other words, the spring/equalization is continous down each side of the locomotive from the lead driver, the trailer being equalized with the #5 drivers. The lead truck is not equalized with the drivers and there is no cross-equalizer between the front springs of the #1 drivers.
Typically, in a locomotive with a 2-wheel lead truck an equalizer from the lead truck was pivoted somewhere under the cylinder and linked to a cross-equalizer linking the front ends of the #1 driver springs. A locomotive such as a Mikado would have its equalization divided between the #2 and #3 drivers; in other words the springs of the #2 drivers were attached to the frame, as were the front ends of the springs of the #3 driver. The trailer was equalized with the last driver.
There's nothing unusual about 60000's springing. It's perhaps the most conventional aspect of the entire engine.
EdKing