Crab flail tank

Hobart's Funnies
Amphibious DD tanks await blowing of breaches in the sea wall on Utah Beach. This photo was taken shortly after H Hour.
Type	Modified tank variations
Place of origin	United Kingdom
Service history
In service	1944–1945
Used by	79th Armoured Division or by specialists from the Royal Engineers
Wars	World War II
Production history
Designer	various
Designed	1941–1944
Manufacturer	various

Hobart's Funnies were a number of unusually modified tanks operated during the Second World War by the 79th Armoured Division of the British Army or by specialists from the Royal Engineers.

They were designed in light of problems that more standard tanks experienced during the amphibious Dieppe Raid, so that the new models would be able to overcome the problems of the planned Invasion of Normandy. These tanks played a major part on the Commonwealth beaches during the landings. They were forerunners of the modern combat engineering vehicle and were named after their commander, Major General Percy Hobart.

Plans to invade continental Europe were completely revised after the failure of the raid on Dieppe in 1942. Allied units in Normandy would need to overcome terrain, obstacles and coastal fortifications if the invasion was to succeed. General Sir Alan Brooke, Chief of the Imperial General Staff decided in 1943 to create special units and assigned responsibility to armoured warfare expert Percy Hobart for the development of vehicles and training crews to use them in action.

Many of the ideas had already been tried, tested or were in experimental development both by Britain and other nations. For example, the Scorpion flail tank (a modified Matilda tank) had already been used during the North African campaign to clear paths through German minefields. Soviet T-34 tanks had been modified with mine-rollers. Close-support tanks, bridgelayers, and fascine carriers had been developed elsewhere also. However, the Funnies were the largest and most elaborate collection of engineering vehicles available.