0-8-0

0-8-0 (Eight-coupled)

USRA 0-8-0

Equivalent classifications UIC class D French class 040 Turkish class 44 Swiss class 4/4 Russian class 0-4-0

First known tank engine version First use 1866 Country United Kingdom Railway Great Northern Railway Designer Archibald Sturrock Builder Great Northern Railway Benefits Total mass as adhesive weight Drawbacks Instability at speed

First known tender engine version First use 1844 Country United States of America Locomotive Mud Digger class Railway Baltimore and Ohio Railroad Designer Ross Winans Builder Ross Winans Benefits Total engine mass as adhesive weight Drawbacks Instability at speed

Under the Whyte notation for the classification of steam locomotives, 0-8-0 represents the wheel arrangement of no leading wheels, eight powered and coupled driving wheels on four axles and no trailing wheels. Locomotives of this type are also referred to as eight coupled.