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M4A4 Sherman V Crab Mark I Flail Tank Accession number A1949.360.


Tank Museum photo No. 4233/F/1

 

 

The Museum's Crab is a Mark I, the type used on D-Day and it carries the markings of the Westminster Dragoons of 30th Armoured Brigade, in 79th Armoured Division.

Tank Museum photo No. 4233/F/1

Tank Museum photo No. 4233/E/3

 

The Mark I is identified by the hydraulic cylinder on the left side that raises and lowers the flail arms.

Tank Museum photo No. 4233/E/3

Tank Museum photo No. 4233/G/4

 

From this angle one can see the thicker arm on the right that contains the flail rotor drive shaft, and the special hooded periscope cover on the driver's hatch.

Tank Museum photo No. 4233/G/4

 

Tank Museum photo No. 4233/G/5

 

From inside the boom one can see the main cross tube and blast shield that protects the front of the tank.

Tank Museum photo No. 4233/G/5

 

Tank Museum photo No. 4238/D/5

 

This view of the right side shows the point where the drive shaft emerges from the hull and runs forwards to the rotor through two bevel gearboxes.

Tank Museum photo No. 4238/D/5

Tank Museum photo No. 4233/G/6

 

Looked at in detail there is the serrated wheel on the end of the rotor, to cut through barbed wire, and the deflector blade beneath the arm to push wire away from the tracks..

Tank Museum photo No. 4233/G/6

 

Tank Museum photo No. 4233/F/3

 

Another feature peculiar to the Crab is the rack, on the side of the hull, for holding spare chains.

Tank Museum photo No. 4233/F/3

 

 


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