Milwaukeeroad261
STL Railfan
DONNER PASS O.O
-AJ
-AJ
Union Pacific Screenshots Thread
- Thread starter lginc
- Start date
socalwb909
Photo Creator
-Coming out of Cameron headed for Monolith:
-Joe
-Joe
RailRunner154
Classic railroads forever
I spy with my eyes a Union Pacifc Tunnel Motor. 
Sweet!
Sweet!simon27295
Member
.... my personal touch
Timothetoolman
L.O.V.E.M.U.F.F.I.N
Anl,
Is this the experimental 'Steam turbine' that I've read about? Looks, good, can't weight.
Cheers
Timo
Is this the experimental 'Steam turbine' that I've read about? Looks, good, can't weight.
Cheers
Timo
No this is not the UP steam turbine. This is the coal burning gas turbine.
The history of the locomotive is quite interesting. It started back in the 40's when several eastern RR (PRR,C&O,and N&W)were funding an engineering group called the LDC, ( locomotive development committee) to develop a locomotive that could compete with Diesels, but use the vast coal fields that they serviced and owned. One concept that they come up with was the steam turbine, witch proved to complicated. One engineer said," on a regular steam locomotive it took one minute to find and 3 days to fix, but on the steam turbine it took three days to find and one minute to fix". Another avenue that the LDC tried, was using coal as the fuel in a gas turbine. Coal would be ground to the consistency of flour, and sprayed into the turbine and ignited. But there were draw back to doing this, one is coal ash contains hard silica particles, and the second one was the intense heat created by the powdered coal. Buy the late 50's the LDC was close to solving these problems when the RR's pulled there funding. The Union Pacific witch kept a close eye on the LDC deiced to give it a try. Using an Alco PA as the lead unit, an EX GN W-1 electric for the B unit, and an old challenger tender, they made the locomotive. A 7000hp 3 unit monster that was 214 feet long. How the locomotive worked was in the tender 3/8" sized coal was pulverized. Then under pressure was pumped to the B unit where it was ignited in Two pressurized combustion tubes. The temperature in the tubes was 3,700F at ignition point. From there the hot gases flowed into the fly ash separator where the hard silica particles were removed, and then the hot expanded air was blown against the turbine blades. Causing them to spin. The temperature was 1,450F at the turbine. After several road trips the locomotive began to experience several break downs. After a major turbine break down, the UP decided to pull the locomotive in to the shop for a look. What they found was not good, what happened is the fly ash separator was not removing the hard silica particles from the hot gases before they reached the turbine. This caused significant were on the turbine nozzles and blades. After some modifications to the fly ash separator the turbine was ready to roll again and made several more trips. Then in 1964 only two years after it was released from the shop having been completed, a major break down happened in the A and B units, the units were side lined. Then in 1968 the A unit was traded in, while the rest of the locomotive was scraped. By then a way was found to proses coal in to a liquid form and be burned in a regular Diesel locomotive. ANL
maverickmc
SBCX Route Creator
The Bridge is By Maddy25 and it is on the DLS under the YARN ROAD PACK
And I think the ES44's are from JointedRail : http://www.jointedrail.com/
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maverickmc
SBCX Route Creator
POST DELETE BTW: nice shots of the Fresno Sub!
qassaquyangli
The Flying Cloud
..
(Off topic) we dont want this AWESOME thread to die!:'(
On topic:Great shots people!
(Off topic) we dont want this AWESOME thread to die!:'(
On topic:Great shots people!