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Cruiser Tank Ram


The Canadian Cruiser Tank Ram Mk II was an up-armed version of the Cruiser Tank Ram Mk I originating in USA (where it was given the designation Medium Tank, M4A5 for record purposes) in that it used a modified Medium Tank, M4 chassis (the prototype was furthermore manufactured in the US by American Locomotive Co.). It had a cast main turret which housed its main gun and one machine gun, and a small secondary turret in the front left side with another machine gun. It also had a smoke projector.

A turretless version of the Ram was used as as an armoured personnel carrier as the Ram Kangaroo.

Technical Details

  Mk I Mk II
  • Commander
  • Gunner
  • Loader
  • Hull machine gun operator
  • Driver
Physical Characteristics
Weight 29.5 t
Length 5.79 m
Width 2.67 m
Height 2.9 m
Armour (max) 87 mm
Speed (max) 40 km/h
Engine Wright R-975
Net h.p. 400
Cylinders 9
Primary weapon QF 2 pdr (1) QF 6 pdr (1)
Secondary weapon .30 cal. Browning Machine Gun (2)


Drawing of a Cruiser Tank Ram Mk I
Profile view of a Ram Mk I
This Ram Mk I photograph gives a good view of the shape of the cast hull
The rivets on the mantlet is quite visible on this Cruiser Tank Ram Mk I
The 57 mm (6 pdr) of the Cruiser Tank Ram Mk II made the tank considerably more potent
Ram Mk II in a field workshop

Further Reading


  1. Office of the Chief of Ordnance. Catalogue of Standard Ordnance Items : Volume I - Tank and Automotive. 1945.