Guess what? Lots of big boats and not one bow thruster among them! Wait. ..no that’s likely not true, there was a fancy USCG patrol boat on the river. I bet they had one. This whole place is a show room for what is really needed, and what works on a boat. There is certainly a lot of gear in today’s marine chandlery that you might do well just leaving on the dock. Take a look at what seems to have changed the most over the years and the most obvious answer is the fortitude of the people on the ships.