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>And on unrelated note with things talked in that thread, is it possible to combine the mechanical advantage of both Shay's design and camelback engines, or they are too different in their means of operation (one having all-wheels drive, the other simply increasing weight on the moving wheels)?
Camelback locomotives weren't about increasing weight on the drivers, it was about getting visibility for the driver with the massive Wootten firebox needed to burn waste anthracite.
If the cab was in the usual place, it would be impossible for the driver to see round it