SRich wrote: ↑Wed Mar 11, 2020 9:30 am
ApproachMedium wrote: ↑Wed Mar 11, 2020 12:27 am
The problem with P42/40 electronics is not chips and ICs the problem is the software. GE owns the rights to it, you cant just load the software on any hardware you cobble together. The computer modules etc usually just have to be repaired if any components on the boards go bad. Somebody was doing this in Albany for a while, but they retired and now its up to amtrak to deal with beech grove or wilmington electronics shop for component repairs on the dual modes which takes more time if they even go that route.
MR Approach, isn't it possible that Amtrak write there own program, from scratch on a new inhouse constructed hardware? Basic is the system a PLC.
I can tell you're being sarcastic, but for the rest, let me share my insight.
I work in this field ("embedded software") which is very much an engineering field. Embedded coders tend to be degreed engineers and not computer scientists as much of the software involves sensing and interacting with the physical world: implementing engineering models and control theory into software. That means that developers who write database code for Amtrak cannot be transitioned to a project like this. I highly doubt Amtrak even has in-house management capable of overseeing a project like this even after it's been contracted out. The programs are often closely tied to the original hardware so often involve a complete rewrite. If it was going to happen, doing it without vendor support would be a fool's errand. I'm not even sure GE has enough folks around preserving the "institutional knowledge." Also, the time to do it isn't now but was 5 years ago.
Tadman [quote=Tadman wrote: ↑Wed Mar 11, 2020 2:50 pm
I understand Amtrak had the choice, my position is that they made the wrong choice. The “we must have something special” culture at Amtrak is well known. Outside of NEC and a few select 90mph areas otherwise, it’s a 79mph show with averages well below that. An SD70M with 79 gearing and HEP would’ve been great for anything not running to New York.
I won't disagree with you here. Amtrak has 75 LD Chargers on order with options for more and is still working out some of the bugs but it has ~210 Genesis units on hand that are starting to wear out. Going the METRA route and converting SD70MACs or AC4400CWs to passenger service could provide a little breathing room for any slip in the Charger order. Regearing for 79 mph and covering the areas outside the Northeast where passenger carriers are loathe to operate 6-axle power would help. The Chief route is the only significant freight trackage where Amtrak can exceed 79 mph. Drop some ballast and find room for a HEP inverter or drag a round a HEP sled in a View-bag or MHC.
With precision scheduled railroading in full swing, carriers are shedding excess power. SD60s, SD70s, and Dash-8s (same "vintage" as the Genesis) are off to the scrapper. NS even stored some of it's newly rebuilt AC4400C6Ms.