Your replacement for a 40 kW diesel would be (more or less) a 40 kW electric engine. Fortunately, for the electric engine salesmen, physics do not...
Tourqe is power divided by gearing Torque at propeller shaft is power / gearing * constant. If you want more torque (at the propeller shaft),...
Torque BS Since I am a spoil sport I will start by giving a physic lecture. For an engine with an ideal gearbox, the only important parameter is...