Absolutely agree, couldn't have said it better myself. It's a systems engineering problem and requires rethinking of nearly every component, from the propeller

Absolutely agree, couldn't have said it better myself. It's a systems engineering problem and requires rethinking of nearly every component, from the propeller design to the architecture of motors and controls. Torqeedo is an interesting example, they've been very successful with low-power electric outboards because in contrast with other companies they've invested heavily in rethinking propeller designs to be suitable for electric motors. The result looks nothing like a gas motor: They have huge, slow-rotating propellers that peak at <1200rpm and a high-speed brushless motor that gets geared down so it operates at the top of its RPM and efficiency range.