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| Re: SI Railway - no new cars till 2020 - NY1 video (1364869) | |||
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Re: SI Railway - no new cars till 2020 - NY1 video |
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Posted by pragmatist on Tue Sep 1 10:16:08 2015, in response to Re: SI Railway - no new cars till 2020 - NY1 video, posted by Jace on Tue Sep 1 10:01:07 2015. Even if they tag on to a mainline order, don't they need to do some customization to accommodate the SIR signaling system? I'm fairly sure it doesn't use trip-arms for stop enforcement. Anything new (other than DMU), whether LRV or railcar based is likely to be AC driven with Inverter/IGBT/VFD and not DC traction. If you wanted/needed to upgrade power, you'd want to do a lifecycle cost analysis of a/c catenary. That of course would alter the equation as to rolling stock choices, but even if nothing ultimately changed, it would sure liven up the discussion forums for a while! |
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