I guess I got my answer on the Model RR favorite thread, and case closed.
I had a cab ride in one at a steady 100mph from London to Newcastle at the time the new poles for the future caternary were all ready in place. A very thrilling experience. Reading Juniatha's comments on the Faribanks-Morse opposed-piston design, I would value her analysis of the Delta with three crankshafts and six pistons where one is usual! Other's comments also appreciated.
One of the very smoothest riding diesels I have ever had the privilege of riding. Not any noisier than a GP-7.
Yes, I did ride Newcastle's "light rail" (so-called, mostly ex RR RofW, mu, train-door, high platforms, really a Meto, not light rail) system and visited the National Railway Museum.
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