Medium Mark B
In service 1918 - 1919
Walter Wilson answer to the Whippet: a separate engine compartment and a fixed superstructure, and a disappointment in service.
Built byNorth British Locomotive Company

Development history
Where the Medium A Whippet came from Tritton, the Medium B came from Walter Wilson and introduced an engine bay fully separated from the crew - a layout every later tank would adopt. In practice the cramped fighting compartment, poor engine access and modest power made it unloved, and the Armistice ended production at 45 vehicles. A few went to North Russia with British forces in 1919. One survives at Bovington.
Variants
One canonical record, 2 recorded variants.
Medium Mark B standard
1918Four Hotchkiss machine guns in a fixed superstructure.
Medium Mark B North Russia
1919Vehicles shipped to Archangel with British intervention forces.
Notable actions
- North Russia intervention 1919