The chunky profile of Canadian National 7312 reveals its mission as a a yard shifter. The absence of leading and trailing axles combined with the small diameter of its drive wheels makes it a perfect low-speed powerhouse equally at home moving in forward or reverse. Meanwhile, its small tender, barely big enough to fit over two two-axle trucks, is still large enough to carry the coal and water for a shift, while affording good visibility to the rear.
Strasburg RR, November 2007.
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