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McDeth posted:God drat truck drivers. I swear to god, half of them are mentally retarded and the other half seriously have me wondering... Wanna guess how many cars and pick-ups I've seen hit trucks tough guy?
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Oct 16, 2012 09:46
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Watch out, he'll attack you in a meth-fueled rage!
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Oct 16, 2012 16:11
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auzdark posted:I found this on my daily surfing on the internet, but I was not able to find a story for it, looks like a terrible case of buffer over run! (I always wanted to see what a train would do to a road haha) This was posted more than a year ago in this thread, but I had to find the story. Yes, it was a buffer overrun. I found a German railfan talking about it on a forum: (Note: Google translate) "The reason was that the Tfzf ran past a stop signal, went on a short siding, ran over the buffer stop, and traveled 170 meters on the road, until it came to a stop. As it happened in the night, there were no other parties involved." Other pictures:   edit: Hang on, ignore that "story." I found another page saying that this is a 1:87 Marklin model train. Wow, that fooled me! Brother Jonathan fucked around with this message at 17:41 on Oct 16, 2012 |
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Oct 16, 2012 17:23
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Brother Jonathan posted:edit: Hang on, ignore that "story." I found another page saying that this is a 1:87 Marklin model train. Wow, that fooled me! No, that's just a joke it says that big metal panel lying next to the engine is "obviously" the HO-scale electric pickup shoe (Flsterschleifer). Also I learned a new German word today, thanks.
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Oct 16, 2012 18:35
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Brother Jonathan posted:This was posted more than a year ago in this thread, but I had to find the story. Yes, it was a buffer overrun. I found a German railfan talking about it on a forum: There's no way those photos are from a model 
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Oct 16, 2012 18:37
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bennyfactor posted:No, that's just a joke it says that big metal panel lying next to the engine is "obviously" the HO-scale electric pickup shoe (Flsterschleifer). Also I learned a new German word today, thanks. Ah. Thanks for the correction. I wish I could read German to find out more about how that happened. Nothing seems to be available in English. EightBit posted:There's no way those photos are from a model I was weighing two possibilities: One, this was the most detailed model train I had ever seen, and two, a train jumped a buffer with enough speed to travel 170 meters down a road. I just can't get my mind around the second one!
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Oct 16, 2012 19:06
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Brother Jonathan posted:Ah. Thanks for the correction. I wish I could read German to find out more about how that happened. Nothing seems to be available in English. Well, this was from a German web site.
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Oct 16, 2012 23:29
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The little engine that could (breathe fire) https://www.youtube.com/watch?v=Eoo-MfSUS-w
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Oct 17, 2012 09:17
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Someone posted that in the GIFs thread in PYF and there was a goon who was able to identify what line that was in Japan. Apparently that happens a LOT there, and it's pretty crazy. Almost looks like they're racing each other 
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Oct 17, 2012 13:18
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~Coxy posted:Hah, I prefer N scale myself because it always seems to me you can actually have proper lines and geometry in a reasonable amount space.
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Oct 17, 2012 15:31
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Zeether posted:Someone posted that in the GIFs thread in PYF and there was a goon who was able to identify what line that was in Japan. Apparently that happens a LOT there, and it's pretty crazy. Almost looks like they're racing each other Yeah, that one is actually photoshopped pretty badly though, but it does happen a lot.
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Oct 18, 2012 00:29
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Zeether posted:Someone posted that in the GIFs thread in PYF and there was a goon who was able to identify what line that was in Japan. Apparently that happens a LOT there, and it's pretty crazy. Almost looks like they're racing each other If you charter your own train, you can in fact hold a real race: http://www.youtube.com/watch?v=IDhosPAKEHI&feature=relmfu
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Oct 18, 2012 01:12
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Cygni posted:Yeah, that one is actually photoshopped pretty badly though, but it does happen a lot. https://www.youtube.com/watch?v=FkieCbMRn7U
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Oct 18, 2012 01:20
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hitze posted:Is photoshopped code for sped up? Sped up an the middle portion cut out, yes.
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Oct 18, 2012 03:07
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Just some Russians, push starting a train. https://www.youtube.com/watch?v=i80zIsRUbRM
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Oct 18, 2012 04:37
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I struggle to believe that's real. Those things weigh around 150-180 tonnes. You can't just push that like that.
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Oct 18, 2012 09:18
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It's also not like the drive wheels are mechanically connected to the engine in any way, they are usually electric motors...right?
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Oct 18, 2012 11:43
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Wicaeed posted:It's also not like the drive wheels are mechanically connected to the engine in any way, they are usually electric motors...right? The only thing I can possibly even fathom is that they somehow wired the dynamic brake to feed back into the batteries so they could charge enough to start but even that's extremely  .Some (more modern?) diesel locos have 'jog' mode, where the traction motors can come online for a short period under battery power, avoiding the need to start the engine. It's meant to be used for short yard movements. I'd say they were using that and did the video for a laugh.
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Oct 18, 2012 13:22
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BlackShadow posted:The only thing I can possibly even fathom is that they somehow wired the dynamic brake to feed back into the batteries so they could charge enough to start but even that's extremely How far could it go on batteries? I used to drive electric buses (with a diesel turbine generator) and those things could only go about 500 feet on battery power before dying. I can't imagine a full-blown locomotive going very far on batteries alone.
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Oct 18, 2012 14:25
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Nam Taf posted:I struggle to believe that's real. Those things weigh around 150-180 tonnes. You can't just push that like that. I remember reading a wikipedia article a year or so ago about some older Russian diesel electrics that could be push started. I can't remember which ines for the life of me, though.
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Oct 18, 2012 18:30
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Nam Taf posted:I struggle to believe that's real. Those things weigh around 150-180 tonnes. You can't just push that like that. Ive pushed an empty coal car by myself before and I weigh 150....
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Oct 18, 2012 19:23
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Nam Taf posted:I struggle to believe that's real. Those things weigh around 150-180 tonnes. You can't just push that like that. Steel wheels on steel rail have a gently caress off low rolling friction. How else do you think you can move 20,000 tons with only 12,000 hp? In one yard I worked, that there was a spot where if there was a gust of wind above 15 mph, cars would roll out on there own to the other end of the yard. That provides some pucker moments!
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Oct 18, 2012 22:44
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BrokenKnucklez posted:Steel wheels on steel rail have a gently caress off low rolling friction. For example, the world record for pulling a train with one's teeth is a pull of 297.1 metric tons over a distance of 2.8 meters.
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Oct 18, 2012 23:52
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Just from an energy point of view I really can't see how four people can put enough kinetic energy into the locomotive in a few seconds to turn over a v16 diesel fast enough to start it. Looking online I found a paper by a capacitor company indicating the crazy large amounts of power required to start a locomotive diesel engine: peaking at 70kW or 2kA at 38V, and it still took 8 seconds with an average draw of around 30kW to start! I can believe they pushed the locomotive to move it, but someone in the cab hit the starter switch.
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Oct 19, 2012 00:08
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Yeah I don't think you can pop the clutch in a locomotive
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Oct 19, 2012 02:23
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Ron Pauls Friend posted:Yeah I don't think you can pop the clutch in a locomotive Wanna bet?  
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Oct 19, 2012 02:27
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locomotives made by Audi or BL Jaguar excluded.
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Oct 19, 2012 15:28
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The Norfolk and Westerns J class 4-8-4s were said to be so perfectly balanced and finely built with roller bearings everywhere in the driveline (unusual in any steamer) that they could be pushed by two men. That's a locomotive weighing nearly 400 tons. Incidentally the Virginia museum of transportation held a tug of war competition where two teams pulled on opposite ends of the J class 611. They evidently were able to move it despite having another team working against them.
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Oct 19, 2012 19:44
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I have been curious about the antenna poles along the track being installed. For a moment today I considered that they might not be just for PTC but for relaying DP radio signals for making trains longer. A short bit of research turns up that these are just for the PTC system to operate. The antennas are made for the 220mhz range https://www.tessco.com/products/displayProductInfo.do?sku=307895 which is inline with info I found here on wikipedia on the Positive Train Control page http://en.wikipedia.org/wiki/Positive_train_control#Radio_spectrum_availability which matches information from this 2008 FRA pdf http://www.fra.dot.gov/downloads/research/PTC_Technical.pdf
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Oct 21, 2012 03:47
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BrokenKnucklez posted:Steel wheels on steel rail have a gently caress off low rolling friction. How else do you think you can move 20,000 tons with only 12,000 hp? I know this, I design the things. People can't accelerate that much mass that quickly. All those 'pulling huge weights with teeth' are at a snail's pace. I wasn't referring to them being able to move it, rather that it gained that much momentum that quickly.
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Oct 21, 2012 03:51
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Wicaeed posted:It's also not like the drive wheels are mechanically connected to the engine in any way, they are usually electric motors...right?
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Oct 21, 2012 12:09
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In 1978 at 8 years old, I was watching Superman the movie. I saw "Otis" (Ned Beatty) is walking in front of old commuter locomotives on his way into Lex Luthor's (Gene Hackman) underground lair. Even as a child, I knew then how differentials, gearboxes, and driveshafts worked. I had even experimented with electrical circuits and motors. My young mind had a great deal of trouble fathoming how a great diesel engine could transmit it's power through driveshafts, gearboxes, and differentials to 6 axles. When someone mentioned to me that the diesel used electricity to drive the train, I immediately assumed he only meant light small passenger trains. I assumed these must have much weaker diesels than the giant freight trains which I watched pass over the massive steel trestle next to John Muir's old historic house in Martinez, California. It is funny the things we think as a child, and the things we remember about it as adults. B4Ctom1 fucked around with this message at 03:25 on Oct 22, 2012 |
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Oct 22, 2012 03:21
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An Amtrak train bound for Detroit derailed on Sunday, thankfully it wasn't too serious. http://www.freep.com/article/20121021/NEWS06/121021035/Amtrack-train-Chicago-to-Pontiac-derailment-Niles E: vvv  vvvMental Hospitality fucked around with this message at 05:37 on Oct 22, 2012 |
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Oct 22, 2012 05:19
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on the plus side, they didn't end up in Detroit.
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Oct 22, 2012 05:25
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Itzena posted:It might be diesel-hydraulic rather than diesel-electric, but that just raises further questions along the lines of "but, but...torque converter!". And that's not all of it. There are even some locomotives that use honest to goodness gears to drive the wheels. And hilariously complex transmissions to make it all work. Even multiple engines, driving a differential so one engine can shut down. Freaking germans...
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Oct 22, 2012 08:10
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B4Ctom1 posted:I assumed these must have much weaker diesels than the giant freight trains which I watched pass over the massive steel trestle next to John Muir's old historic house in Martinez, California. Cool, I went to high school in Pleasant Hill (College Park).
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Oct 22, 2012 08:38
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Back to the push-starting a Diesel-electric locomotive:quote:Don Oltmand is right [previous poster- "You could - with a DC main gen -, if you had enough residual magnetism in the TM field coils or had enough oomp in the batteries to provide some magnetic field." . I personally don't know if any of this is true/makes sense. http://cs.trains.com/trn/f/111/t/205121.aspx?sort=ASC&pi332=1
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Oct 22, 2012 09:34
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InterceptorV8 posted:Wanna guess how many cars and pick-ups I've seen hit trucks tough guy? I'm not talking about trucks vs. cars, I'm talking abou trucks vs. trains. How the gently caress does a truck driver manage to drive into the side of a train? Oblivious? Clinically blind?
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Oct 22, 2012 21:39
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McDeth posted:How the gently caress does a truck driver manage to drive into the side of a train? Oblivious? Clinically blind? Must be related to these morons.
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Oct 22, 2012 21:49
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Tired, plus dirty windshield, plus off-white train cars, plus bad lighting almost did it for me. I suddenly realized that I couldn't see the road ahead of me. I was distracted by the red lights off to the side of the road that I didn't realize were on the engine. This was in the city. Actually my windshield wasn't even that dirty. My brother was in a similar situation except it was a dirt road with no lighting at all, and he actually did hit the train. Of course these were both on uncontrolled, barely used crossings. At night.
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Oct 22, 2012 22:48
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