ElectricTraction wrote: ↑Thu Jun 23, 2022 8:38 pm
Silverliner II wrote: ↑Fri May 20, 2022 9:32 amNot likely about the impediment. I read somewhere (might have been further up in this thread) that the obstruction is part of a bridge structure, so that can't be changed.
Where? How did something get built literally inches from the plate clearance?
The bridge in question is in East Haven, but I saw another post that hinted that CDOT might be funding a replacement for that bridge. If that is true and it is replaced, then they would be able to put the third rail shoes back onto the sets and then just use any MU set in the yard for service.
Silverliner II wrote: ↑Fri May 20, 2022 9:37 pm2. If the M8's are still limited to 80mph by Amtrak, that would also make sense for no decrease in times.
twropr wrote: ↑Fri May 27, 2022 9:37 amWere most of the diesels pre 24th 90 or 100 MPH trains?
They go 90 as opposed to 80 for the diesel sets, but that's a trivial difference. The big time savings is in acceleration, comparing a 4000HP M-8 set with nearly instant power via 25kV to IGBT inverters to a 4000HP P40DC with a 7FDL16 slowly winding up, spewing smoke all over the place like a crappy knock-off of an Alco, and eventually starting to lumber is a complete night and day difference.
I need to correct myself.... I did mean to say 90 mph for the M8's on SLE, but the goal is to get to 100mph. As for the diesel sets, that 80mph was only because Amtrak limited the Mafersa cars to 80... the P40 diesels can do 100 easily, but I think the Geeps were also limited to 80. I'll have to check my Amtrak ETT.