Pacific Railroad
Preservation Assoc.

All photos by Terry Thompson unless otherwise noted.
outside looking at side of firebox

Charlie Harrison smooths the spot on the grid to be measured.

outside looking at side of firebox

Don Wheeler calls out a reading

sheet of paper

This is a sample of our data sheet.

under cab

The part of the backhead below the cab floor has to be tested too. John Cox emulates Houdini as he gets that job done.

sheet of paper

Don Wheeler records a reading for the backhead below the cab floor..

outside looking at side of firebox

Linda Vanderbeck, John Cox, and Don Matlock.

outside looking at side of firebox

A sequence of photos with John Cox reading and Linda Vanderbeck recording. Photo by Dale Birkholz

outside looking at side of firebox

Photo by Dale Birkholz

outside looking at side of firebox

Here's a sample reading. This spot was specified to be 9/16" or 0.5625 in. The reading of 0.661 suggests it was originally 11/16" or 0.6875 Photo by Dale Birkholz

inside firebox

Here John is on the other side of the tube sheet, inside the boiler. Photo by Dale Birkholz