Those look like they self tack.Looks like a Chesapeake Deadrise, and most of those have a single diesel.
Yes, typically +800 HP and a +20 inch prop. A nice balance of speed and fuel economy. If they are going to bluewater they put two diesels in them and raise the freeboard. These are working boats with lots of deck space.Yes it does. But aren’t those single but powerful engines with a large prop?