Does anyone know how much it might cost to take up about an hour of a marine construction engineer's time. I want to show how something could be done (quite easily, relatively speaking) but is a little tricky in the explanation. I have already tried to outline my thoughts to someone over the...
There is an electrically operated propeller combined with a motor in a light housing laying sideways in a pool of water (not conventionally upright as on a boat) - think of a helicopter in the water.
The propeller/motor will be 8 metres diameter by 1 metre depth and will weigh 22 metric tonnes...
Simply put, if a nine ton payload needs to be hoisted a distance of between sixty and one hundred metres upwards how much energy would the crane used consume? And how many times would a crane motor (as found on a bridge crane type) be able to work with hoisting this weight four times an hour...
