7. The ‘swimming’ Sherman
The DD (Duplex Drive) Sherman was one of the most unique innovations of Hobart. The tank was able to fire its main gun while in water as it approached the shore. It had a screen that enabled it to become buoyant enough to float in water and propellers powered by the duplex engine that enabled it to glide like a standard sea vessel.
Once ashore, its canvas floatation screen would be deflated allowing it to become fully operational as a conventional tank with its duplex engine powering its track. This amphibious tank was used on all the five beaches where the D-Day landings took place. The tank’s multiple functionalities enabled the troops to afford quick and invaluable support for the attacking infantry forces.
