GE has an interesting page on their website:
[www.getransportation.com]
Here's a quote: "GE Transportation Systems (GETS) and Bombardier have complementary elements of expertise in the production of diesel-electric locomotives and locomotive components. We have joined together to pursue the development, production and sale of a series of "lightweight" diesel-electric locomotives, that is, locomotives having an axle weight of less than 25 metric tonnes. These locomotives will have various horsepower ratings, and may use either AC or DC propulsion drive systems."
The page says that these locomotive will run on track that is from 1000 mm to 1600 mm gauge.
Before someone asks, 1000 mm == 1 m, which is still wider than 3', so no, these will not run on the loop.
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Chris Webster
[www.speakeasy.org]