Hi Alex,
It is no transportation modus but they can lower the mast to pas under low bridges. In the inland waterways there were and still are a lot of fixed bridges and to pass them you need to easily liwer your mast. On some of our Dutch type of sailing boats ( like Valk) you still can do that to sail the smaller canals with fixed bridges. I am also doing that my self in summer.
It is no transportation modus but they can lower the mast to pas under low bridges. In the inland waterways there were and still are a lot of fixed bridges and to pass them you need to easily liwer your mast. On some of our Dutch type of sailing boats ( like Valk) you still can do that to sail the smaller canals with fixed bridges. I am also doing that my self in summer.