The da Vinci Tank - Why it doesn‘t work?

Battle-machines.info stats!
I spent 539 hours on project Battle Machines project. Rendering images and videos took 3163 hours and sails 36656 files. My disk space has dropped by 1559 GB while I drank 90 coffees and burned 61 pieces of pizza. O yes, the price of electricity has risen by 1414 kWh.