It is interesting to see that many of these models are over 60" long.
Big boys toys even then
I was thinking the other night, that although they did not have acces to modern materials there were a far larger percentage of the population who were artisans and mechanical engineers than we have today.
They were also surrounded by real ships to inspire them.
What would they have used for propulsion on the non sail models?
Steam is obviously an option, but I get the impresion that these were pointed across the lake and collected at the other side.