Rich, You might like the smell of your chocky sauce but I'm pretty sure the taste would have something to be desired for
Lynn's right you need ice cream to disguise the taste
Tim, the crank handle is for the engine. The Meadows engine is facing the back of the tank and there is a tube that has a crankshaft extention running through it. there is a recess in the turret basket which you can see in post No 5.
I think they put the engine and trans in a hull first then all sat around a table to work out how to manually start it and came up with the rear facing crank system with tubes, recesses and hang down bits
Great footage by the way.