Great question! The hours are higher than I anticipated as well. But in retrospect it makes more sense now. The ICW is very much a motor sailing section, which is a large part or the trip. Also, from Lake Ontario through the Erie canal and Hudson River to NY City it is pretty much all motoring. Outside on the ocean to Cape May NJ we motor sailed because the safe weather window was more important to us than waiting for a good sailing couple of days. We could sail up most of the Delaware. Chesapeake Bay was good although we motor sailed a lot because we had destinations to get to, and were running away from the cold weather. Coming back north we were constantly outrunning large thunderstorms and had the motor on more than we wanted to. Our best sailing was from Biscayne Bay south to Marathon. The other part of running the engine was that we did not have solar or wind generation capabilities and so ran the engine very often for power and hot water. We had a small Honda 1000 generator on board and used that to supplement, but when we were anchored we actually put on quite a few engine hours that way. So for much of the winter we didn't travel too far but still added up the engine hours. And then of course there was the loss in speed and efficiency coming north until I had the bottom cleaned in North Carolina which gave us a whole knot back!