OK, here is my idea. It might be stupid, but bear with me:
My idea is for a jet boat. Not water jet, like on jet skis, but with a real jet. It would have a turboshaft engine (i.e.one that transmits most of its power to a shaft, not through a nozzle) that is connected to a propeller on the exterior of the boat, below the water line. Ideally the air intake would be as high as possible, to reduce water in the engine, and the engine itself would be in the engine room like on any other boat. So it wouldn't look like a boat with a jet engine slapped on the top, just some air intakes.
Your thoughts? Is it possible if price is no object? Would it work better than a piston engine? More efficient?
My idea is for a jet boat. Not water jet, like on jet skis, but with a real jet. It would have a turboshaft engine (i.e.one that transmits most of its power to a shaft, not through a nozzle) that is connected to a propeller on the exterior of the boat, below the water line. Ideally the air intake would be as high as possible, to reduce water in the engine, and the engine itself would be in the engine room like on any other boat. So it wouldn't look like a boat with a jet engine slapped on the top, just some air intakes.
Your thoughts? Is it possible if price is no object? Would it work better than a piston engine? More efficient?