Rail expansion joints
That is truly great, Motorcar. Now lets' see the RRs place them in common usage. That was great information about the tie-plates also, from another gentleman who contributed.
As explained to me, one of the most important factors in causing rail pull-aparts is how much the temperature changes in one event. The area around Soda Springs, Idaho is like the one you describe in Texas-extreme temperature swings. On a clear, quiet night, if you listen, you can hear the U.P. main line break. Everybody has heard the flat spots on the wheels of many freight cars, pounding the rails with every turn. Then we must consider the rough roadbed, allowing the rail to stretch and flex every time a set of wheels goes over it, especially with these massive axle-loadings that are now common. In recent years, a number of RR bridges have required replacement on this district. In my humble opinion, you simply can not expect to send a maintainence gang through a given area every couple of years, supposedly to fix all the problems, and then perform minimal (if any) repair work the rest of the time. Imagine derailing a military train moving at, say, 50 mph, loaded with all of our favorite toys, including M-1s, or roll some of those rocket motor cars into a canyon!
Anyone hears a young man or woman considering hiring out on the railroad, lets' do them a favor and explain the railroad facts-of-life to them, so they can make an informed decision. I am fourth generation U.P., with three of us being engineers. I brought the "family flag" with me when I walked out the door. I threatened my kids with their personal safety if I caught them sniffing around the RR looking for a job, and both are black belts in TaeKwonDo, (and not from some no-contact belt mill either,) so I would have to sneak up on them. Seriously, this is not a job for a man who wants his own family.
The only thing that made that life bearable was the people I worked with. I exchanged seniority twice, and borrowed-out a couple of times when the U.P. was desperately short of engineers (kind of TDY), and got to meet a lot of folks, most were really great. There are some great ones in this site and hobby as well. Now if we can just keep our toys from the clutches of the politicians and their "clunker_crushers."
EMD567-I like that-good handle. I've run a bunch of those. Before he went railroading, my father was on an LST in the Navy in WW2. He claimed that engine, or one very much like it, was what powered his ship. Then there was the Fairbanks-Morse........
I understand the U.S. Military is primarily diesel-powered now. I have experienced -52 degrees F. in Green River, Wyoming, and -66 F (these are ambient temperatures) near Logan, Utah. What does a diesel-powered army do in temperatures like that? Are thier fuel heaters really that good, as well as the support equipment? I've seen idling locomotives gel up, and they have a fuel heater the size of the trash can next to your computer.
Pagan