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the leading driving axle, it will probably be inclined (as on most US three-cylinder locomotives and on some of Gresley's three-cylinder locomotives in Great Britain), and the inside crank will be correspondingly shifted from 120 degrees. For a given tractive effort and adhesion factor, a three-cylinder locomotive of this design will be less prone to wheelslip when starting than a 2-cylinder locomotive.
* outside cranks set at 90 degrees, inside crank set at 135 degrees, giving six unequally spaced

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