Railroad Forums
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JDC wrote:More:They originally tried to push the train into Rosslyn; this is what didn't work (likely since the train was on a curve into the station, making coupling more challenging). They offloaded a second train and coupled it to the 7K and eventually pulled it to Alexandria Yard. Here's video of the 14-car train going through Crystal City: https://twitter.com/RailTransitOPS/stat ... 9864392704" onclick="window.open(this.href);return false;
They tried to push the train, but the 'bumpers' per the reporter 'didn't line up (https://twitter.com/AdamTuss/status/720699679810392064)'. - video https://twitter.com/AdamTuss/status/720700379420323840
Eventually they towed the train away - https://twitter.com/RailTransitOPS/stat ... 9864392704
srepetsk wrote: They offloaded a second train and coupled it to the 7K and eventually pulled it to Alexandria Yard. Here's video of the 14-car train going through Crystal City: https://twitter.com/RailTransitOPS/stat ... 9864392704" onclick="window.open(this.href);return false;They can do this without burning out the traction motors on the 6-car train? Or slipping wheels? I guess if you keep the speed down and use very gentle acceleration/braking, anything is possible.
Sand Box John wrote:"JackRussell"Still.. I would think that would be too stressful on the hardware connecting the 6-car train to the 7k train. I would expect it to damage or brake the unit connecting the two trains. Unless the 7k train was actually able to power itself while connected to the 6-car train. But that would mean that WMATA partially lied about the level of compatibility the 7k cars have with other cars. I'm sure they are not fully compatible, but the video suggests they are somewhat compatible.
They can do this without burning out the traction motors on the 6-car train? Or slipping wheels? I guess if you keep the speed down and use very gentle acceleration/braking, anything is possible.
In a word, yes. A 6 car train of WMATA rolling stock has roughly the same horsepower as an EMD SD-35 freight locomotive, The difference being is the power is applied to the rails using 24 axles instated of 6.
MCL1981 wrote:They didn't walk through the tunnel. They pulled another train up behind it, and passengers walked through that train to the platform that was only 100ft away. After an hour of little to no communication from Metro (as usual), I would have walked there myself in the tunnel.Yes, this clarification came about later.
Sand Box John wrote:"Chris Brown"Situations like these are considered in the design of the cars. Though not routine, having to tow a dead train is not that far from a standard incident response. You would be shooting yourself in the foot if you had only a small number of vehicles capable of rescuing/towing trains or you had to risk damaging equipment to do so.
Still.. I would think that would be too stressful on the hardware connecting the 6-car train to the 7k train. I would expect it to damage or brake the unit connecting the two trains
The 7k cars braking system is compatible with the rest of the fleet at a rudimentary level and the coupler strength is sufficient for events just like this. A train of the older cars can rescue a dead train of 7k cars just like a train of 7k cars can rescue a dead train of older cars.
smallfire85 wrote:It gets really fun when your pushing the train, because then you'd have the person actually moving the 14-car consist sitting 600' behind the front of the train, taking orders from the guy in front via radio.Proceed....Proceed....Proceed...Proceed.... :D
srepetsk wrote:Proceed....Proceed....Proceed...Proceed.... :DLOL. I had to listen to that one night with a train with propulsion issues in Brentwood Yard for half an hour. Thing is, it was blocking my contractors from entering the mainline. I almost lost it...
