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Nostalgia & History > 1952 California Zephyr RulesDate: 03/18/17 08:34 1952 California Zephyr Rules Author: Grande473 According to the D&RGW's Pueblo Division Time-Table No. 8 issued July 6, 1952 special rules were in effect for the California Zephyr. This Time-Table covered the former Denver & Salt Lake Railroad.
Trainline air brake pressure was 110 psi. Steam pressure was 200 throughout the year (the train had steam powered air conditioners). The train had both electro-pneumatic brakes and automatic air brakes. Diesel locomotives 600 and 601 (the three-unit Alcos) were geared for 75 mph. EMD diesels were red lined at either 65 or 70 mph. Date: 03/18/17 09:50 Re: 1952 California Zephyr Rules Author: mundo Steam was used for heat, but not air conditioning.
Date: 03/18/17 10:28 Re: 1952 California Zephyr Rules Author: Grande473 You are mistaken. Steam was used for air conditioning. It replaced mechanical compressors. This type of air conditioning was very labor intensive.
Date: 03/18/17 10:31 Re: 1952 California Zephyr Rules Author: dan Santa fe used steam injection, wished they didn't , was thought was mentioned, by the guy that ordered them, but the most roads includung the CZ didn't?
Date: 03/18/17 10:33 Re: 1952 California Zephyr Rules Author: spnudge Steam was used for both. Some of the western roads switched to car mounted generators for AC. The eastern roads, that used Grand Central & Penn Station had to stay with steam ejection because of the fumes under ground. That's why Atk got rid of a lot of cars when they took over because they couldn't be used system wide.
SPs air pressure was 90 lbs freight, 110 lbs passenger and 200 lb. Steam. There were places, like the Siskiyous where you left Dunsmuir and Ashland with a 75 lb. brake pipe and then screwed the pressure up to 90 lb before you reached the top of of grade. This was a running air brake test. Oh, the Circus train was 90 lbs. brake pipe. We had a few hoggers that wouldn't listen and cranked the pressure up to 110. It took hours to bleed every car. Nudge Date: 03/18/17 13:03 Re: 1952 California Zephyr Rules Author: salrwy Southern Railway also had some cars with steam ejector air conditioning. Most streamlined cars had electro-mechanical.
Posted from Android Date: 03/18/17 14:42 Re: 1952 California Zephyr Rules Author: The_Chief_Way The CZ had electro-Mechanical air conditioing throughout. I believe the ATSF and MILW Road were two that relied heavily on
steam ejector air conditioing in the modern era. That's "steam ejector." Most roads did not use this. Of course steam was used for hot water and heat. Date: 03/18/17 16:48 Re: 1952 California Zephyr Rules Author: Topfuel The_Chief_Way Wrote:
------------------------------------------------------- > The CZ had electro-Mechanical air conditioing > throughout. I believe the ATSF and MILW Road were > two that relied heavily on > steam ejector air conditioing in the modern era. > That's "steam ejector." Most roads did not > use this. > Of course steam was used for hot water and heat. This is correct. The CZ did not have any Steam Ejector AC cars, only EM. The SOU also had many lightweight cars with Steam Ejector AC. Date: 03/18/17 18:20 Re: 1952 California Zephyr Rules Author: mp51w Very interesting thread going on right now on the "Passenger Car List" Yahoo group about steam ejector vs. mechanical A/C.
I think the subject started with what size ice blocks were used in the bunkers. It still amazes me that you can get cool air from hot steam. |