and modeling an ice deck provides additional operating activ-
ity as well as being visually interesting. The PFE side of this is
complex because of the size of PFE's territory, encompassing
all the lines of SP (and T&NO), UP and WP. All icing on those
lines was PFE’s responsibility, and facilities had to be provided.
It is understandable that modelers might like to model one
of the big Ice Manufacturing Plants or IMP (as PFE called
them), these were truly impressive facilities. A word of caution
though: because these were
usually mammoth in size (see
Figure 4). The PFE IMP at
Roseville, CA was the largest
14: This ice hatch is latched as far open as it can go
(note top of latch bar), for ventilation service. The
hatch plug underneath is separately hinged, thus is at
a slightly different angle. – PFE photo, courtesy CSRM.
14
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