Abstract: A control handle for controlling an electric drive system of a sailboat is provided. The control handle comprises a handle and a handle shaft, where the control handle is provided with a plurality of engagement positions. A first engagement position is adapted to engage a forward drive mode of the electric drive system, a second engagement position is adapted to engage a reverse drive mode of the electric drive system, a third engagement position is adapted to engage an idle drive mode of the electric drive system, and a fourth engagement position is adapted to engage a hydro energy generation mode of the electric drive system.

Abstract: A tiller for controlling a rudder of a sailboat comprising a handle arranged to be controlled by one hand. The handle is provided with a plurality of engagement positions, where a first engagement position is adapted to engage a forward drive mode of an electric drive system, a second engagement position is adapted to engage a reverse drive mode of the electric drive system, a third engagement position is adapted to engage an idle drive mode of the electric drive system, and a fourth engagement position is adapted to engage a hydro energy generation mode of the electric drive system.

Abstract: A method for controlling the exit of exhaust gases from an engine which is used to power an underwater propeller drive arranged at the hull bottom of a boat is provided. According to the method exhaust gases are allowed to flow from the engine through an exhaust channel and exit through a first underwater exhaust outlet in the underwater propeller drive. According to the method, if the engine is running and the transmission of the propeller drive is in neutral position, a second underwater exhaust outlet is opened for letting exhaust gases in the exhaust channel exit in a position closer to the hull bottom of the boat than the first underwater exhaust outlet.

Abstract: A method for controlling the exit of exhaust gases from an engine which is used to power an underwater propeller drive arranged at the hull bottom of a boat is provided. According to the method exhaust gases are allowed to flow from the engine through an exhaust channel and exit through a first underwater exhaust outlet in the underwater propeller drive. According to the method, if the engine is running and the transmission of the propeller drive is in neutral position, a second underwater exhaust outlet is opened for letting exhaust gases in the exhaust channel exit in a position closer to the hull bottom of the boat than the first underwater exhaust outlet.