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NoWake posted:A rail car's natural state is to roll free, like a car in neutral with its parking brake off. This makes them handy to shunt move around mines, terminals, factories, plants, and sorting yards while they're not part of a train. To have spring-operated brakes that require air pressure to release, you'd need each car to have an engine, compressor, battery and fuel, to make them reasonable to move around on a moment's notice. They also need the ability to sit in the same spot, in every kind of weather, full shade or full sun, for years on a storage track, and then be ready to go with next to no maintenance, so a lot of ancillary braking methods won't be both cost-effective and feasible. I understand that in a yard, but that was a train set to engage its brakes releasing them on their own after an arbitrary time limit. Why would you design something like that?
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Nov 20, 2018 04:24
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Neddy Seagoon posted:I understand that in a yard, but that was a train set to engage its brakes releasing them on their own after an arbitrary time limit. Why would you design something like that? Ahh, reading the quote again I see it's electric brakes, and those are out of my depth. quote:Our initial findings show the train came to a stop after a braking system control cable became disconnected. I took that to mean an air line (which is used as the "signal wire" in the air brake systems here) came undone, and I kinda skimmed the rest in my rush to 
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Nov 20, 2018 04:41
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It also sounds like none of that would have been a disaster if the backups had worked:quote:Due to an integration issue with the backup braking system, it failed to stop the train.
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Nov 20, 2018 14:31
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iirc those trains use some electric controls to control the air brake system and thats probably what they are talking about.
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Nov 20, 2018 15:30
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"Integration issue" sounds like the martian lander where the units got mixed up in the command interface, two groups of people that didn't work out the big picture correctly.
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Nov 20, 2018 22:58
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NoWake posted:To have spring-operated brakes that require air pressure to release, you'd need each car to have an engine, compressor, battery and fuel, to make them reasonable to move around on a moment's notice. They also need the ability to sit in the same spot, in every kind of weather, full shade or full sun, for years on a storage track, and then be ready to go with next to no maintenance, so a lot of ancillary braking methods won't be both cost-effective and feasible.
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Nov 20, 2018 23:31
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evil_bunnY posted:Yes, better have a runaway every couple years. what kind of runaway trains
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Nov 21, 2018 01:52
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Runaway train never going back Wrong way on a one-way track
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Nov 21, 2018 19:20
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i may have an opportunity to run a bulk material vessel loading terminal. which is cool, a very interesting opportunity, except i dont know anything about loading bulk material in ships.
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Dec 4, 2018 03:31
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vains posted:i may have an opportunity to run a bulk material vessel loading terminal. which is cool, a very interesting opportunity, except i dont know anything about loading bulk material in ships. Generally you use a crane.
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Dec 4, 2018 08:36
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Neddy Seagoon posted:Generally you use a crane. I think cranes are an endangered species though? How did this get EPA approval?
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Dec 4, 2018 12:02
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maybe at a small facility. this place uses belts to move the product down the pier and into the ship. i dont think you could get any sort of throughput with cranes.
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Dec 4, 2018 22:24
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Neddy Seagoon posted:Generally you use a crane. Bulk material will be a conveyor or vacuum system for dry goods, or a pump for wet goods. A crane would be way too slow.
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Dec 4, 2018 23:09
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Well fine; don't laugh at my dumb joke and use actual logistics. See if I care  .
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Dec 5, 2018 03:22
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I liked the crane joke 
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Dec 5, 2018 08:14
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Jonny Nox posted:I liked the crane joke A stork would have helped with the delivery
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Dec 5, 2018 15:55
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vains posted:i may have an opportunity to run a bulk material vessel loading terminal. which is cool, a very interesting opportunity, except i dont know anything about loading bulk material in ships. I work on the electrical design for bulk material terminals, for shiploaders and conveyors. What would you be loading?
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Dec 5, 2018 18:47
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Wife and oldest are at my old high school to watch Bush's train going by here in about 20-30 minutes or so. I live really close to where it's leaving from. I planned on going but my 18 month old has a 103 degree fever. 
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Dec 6, 2018 19:50
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blindjoe posted:I work on the electrical design for bulk material terminals, for shiploaders and conveyors. What would you be loading? coal. i turned it down but i kind of regret it already. it's an interesting problem. the hold yard has a certain capacity, the dumpers have a certain capacity and uptime, the empty yard has a certain capacity, the ship loaders have a certain capacity, the ground stacking has a certain capacity. you have to ensure that the hold yard always has capacity to receive a train because the network doesn't like it when you hold out traffic. but, you can't dump endlessly because you'll end up with the wrong mix and can't load ships in a timely fashion(you'd end up calling in ship a, sending it away, calling in ship b, sending it away, to free up capacity for the grade of coal you need to finish ship a and ship b or something). you have to slot maintenance on the dumpers/conveyors into this whole mix. to solve it you'd end up having to deal with service design, network ops, the local yard(mechanical and transportation) and some upstream yards plus the steamship lines and your own employees.
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Dec 7, 2018 23:02
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sincx fucked around with this message at 05:55 on Mar 23, 2021 |
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Dec 8, 2018 01:38
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yes.
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Dec 8, 2018 02:21
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I drove just over 400 miles and took exactly one photo of the funeral train yesterday. There was a 70 mile line of traffic and spectators along the route. It was a madhouse. Worth it, though.
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Dec 8, 2018 04:11
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Does the government own that presidential livery locomotive like Air Force One, or does UP own it, or did they paint one up special just for this?
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Dec 8, 2018 19:05
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Aunt Beth posted:Does the government own that presidential livery locomotive like Air Force One, or does UP own it, or did they paint one up special just for this? If I remember right, there was some contention over it, and don't hold me to this, I think the final agreement was "we won't use it anymore, except for his funeral train". I could be wrong
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Dec 8, 2018 19:14
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iirc, 4141 was parked at the library and will get parked again at the library once the funeral train does it's rounds. So, it won't be used again, but it's not like UP is going to take the thing back and repaint it.
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Dec 8, 2018 19:19
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Minto Took posted:iirc, 4141 was parked at the library and will get parked again at the library once the funeral train does it's rounds. Yeah, then this was the final agreement, because the Air Force One paint scheme is I think a trademark of the US Government, and if you don't defend trademarks, you lose the right to use them.
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Dec 8, 2018 19:32
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Legally, UP owns the locomotive. They got permission to paint it up in the Loewy scheme for the commemoration of the presidential library in College Station, TX, but then rarely used it after that. The last decade or so it's been at some shop in Arkansas to 1) keep it out of the reach of vandals and 2) have it on stand by for this event they've been planning for years. Apparently, every time Bush Sr. got sick, they'd rush it to Houston on a hot train and have it waiting. The rumor now is that it will be gutted and put on permanent display outside of the library. Gutting it would make sense because that's probably the lowest mileage SD70ACe in the US, so those parts will be in great shape.
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Dec 8, 2018 21:51
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Tex Avery posted:Legally, UP owns the locomotive. They got permission to paint it up in the Loewy scheme for the commemoration of the presidential library in College Station, TX, but then rarely used it after that. The last decade or so it's been at some shop in Arkansas to 1) keep it out of the reach of vandals and 2) have it on stand by for this event they've been planning for years. Apparently, every time Bush Sr. got sick, they'd rush it to Houston on a hot train and have it waiting. Is there a particular connection between UP and College Station or GHWB that inspired them to do this?
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Dec 8, 2018 22:25
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Bush asked if he could drive that locomotive, he was given a quick lesson and did take it out for a spin.
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Dec 8, 2018 22:28
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Tex Avery posted:Legally, UP owns the locomotive. They got permission to paint it up in the Loewy scheme for the commemoration of the presidential library in College Station, TX, but then rarely used it after that. The last decade or so it's been at some shop in Arkansas to 1) keep it out of the reach of vandals and 2) have it on stand by for this event they've been planning for years. Apparently, every time Bush Sr. got sick, they'd rush it to Houston on a hot train and have it waiting. It won't be used for hauling any other president that dies?
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Dec 8, 2018 22:36
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JuffoWup posted:It won't be used for hauling any other president that dies? Nah, it was numbered 4141 in honor of HW specifically.
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Dec 8, 2018 22:37
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JuffoWup posted:It won't be used for hauling any other president that dies? I believe Reagan and Bush were the last ones to use trains for anything significant while in office, which is part of why the train is a thing in the first place.
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Dec 8, 2018 23:12
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https://www.youtube.com/watch?v=EJqtxrI-klk
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Dec 8, 2018 23:49
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Stultus Maximus posted:Is there a particular connection between UP and College Station or GHWB that inspired them to do this? H. W. and Barbara lived somewhere in that area, and Barbara is already buried at College Station.
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Dec 9, 2018 00:11
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MrYenko posted:I believe Reagan and Bush were the last ones to use trains for anything significant while Clinton did a rail tour as part of the reelection campaign. I know because we walked from our gradeschool to the nearby stop to hear a meaningless stump speech. Edit: or maybe it was for the Gore campaign, but it was definitely Bill who did the talking
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Dec 9, 2018 00:35
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Speleothing posted:Clinton did a rail tour as part of the reelection campaign. I know because we walked from our gradeschool to the nearby stop to hear a meaningless stump speech. I take back my comment, apparently Clinton and Obama have used trains as well. Obama took one to his inauguration I guess? I try not to pay attention to the news, which causes me to miss details like that.
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Dec 9, 2018 00:47
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Wish UP went all out and made it a turbine.
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Dec 9, 2018 00:48
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C-Bangin' it 
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Speleothing posted:
Must have been in '96, because Bill got sent off to the cornfield during the 2000 campaign after all that unpleasantness with Monica Lewinsky.
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Dec 9, 2018 01:47
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When Kay Bailey Hutchison dies, she'd better get an express passenger train named after her to haul her corpse around. I don't agree with a lot of her political views (she's a Republican from my state), but she's really into keeping Amtrak going, so she's not ENTIRELY evil. I shook her hand once whwn she came to the local train station to give a speech about how Amtrak needed to keep existing*. *when I was working for the newspaper and was assigned to it.
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Dec 9, 2018 02:36
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Bad Angus! Bad!
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TITTIEKISSER69 posted:Bush asked if he could drive that locomotive, he was given a quick lesson and did take it out for a spin. I choose to believe this is true.
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Dec 9, 2018 03:17
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