6-8-6

Under the Whyte notation for the classification of steam locomotives by wheel arrangement, 6-8-6 represents the arrangement of six unpowered leading wheels arranged into a three-axle leading truck, eight powered driving wheels, and six unpowered trailing wheels arranged into a three-axle trailing truck.
Other equivalent classifications are:
*UIC classification: 3D3 (also known as German classification and Italian classification)
*French classification: 343
*Turkish classification: 410
*Swiss classification: 4/10.
The only known example of the 6-8-6 wheel arrangement is the experimental Pennsylvania Railroad S2 steam turbine locomotive.
Category:6-8-6 locomotives
Category:Wheel arrangements
Category:6-8-6 steam locomotives