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Amtrak puts out RFP for new and rebuilt locomotives.

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[quote user="M636C"]They did well in getting the weight down to 138 tonnes if it is based on the AC4400CW. The "AC" in C38ACi means that it has AC traction. Its trucks (more or less) are used in Australian C44ACi locomotives all of which use GEB30 AC tracton motors and I know of no locomotive using that truck with 752 motors. It would be a bit of a waste using such heavy motors on a lightweight fabricated truck.[/quote] The only source I found that named the traction motors was thedieselshop.us. I know that it is not always right, to say it posetively. [quote user="M636C"]As I indicated, it looks like a P42 painted white (or green for the later units). The body is the same shape, more or less as the P42. Since everything is in the same place as the P42, the same monocoque could be used.[/quote] Just to complement your Edit: GE P42: <a href="https://history.amtrak.com/exhibit-train/gallery/ge-p42-66-in-phase-ii-livery-at-washington-union-station/image">https://history.amtrak.com/exhibit-train/gallery/ge-p42-66-in-phase-ii-livery-at-washington-union-station/image</a> C38AChe: <a href="http://www.railpictures.net/showimage.php?id=165966&key=5038400">http://www.railpictures.net/showimage.php?id=165966&key=5038400</a> It is for sure not the P42's monocoque. The nose and the cooling air intakes at the rear are completely. Both would require a complete re-design and new Finite Element Analysis and Ge hasn't done this til now. The GE Genesis (P40) would have been according to GE about 20,000 lbs heavier than with monocoque. That would be about 134 tonnes. For the P40 the monocoque was the way to avoid 3-axle trucks, which was possibly out of reach for the NJ2 anyway. It is no monocoque. Regards, Volker
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