Abrahams use mechanical transmission from the turbines. Some ships and trains use diesel electric drivetrains or even turbine electric but its not for weight or

Abrahams use mechanical transmission from the turbines. Some ships and trains use diesel electric drivetrains or even turbine electric but its not for weight or efficiency but controllability. My understanding hybrid electric drivetrains are around 80% efficiency, while normal mechanical drivetrains are in the mid 90's. This is why nearly all hybrid cars switch over to normal mechnical drive typically at highway speeds as it more much efficient, while in the city in stop and go the electric drive train beats it due to regeneration and stop light idling.