Watercraft propulsion system, and watercraft

A watercraft propulsion system comprising:

• an engine propulsion device attachable to a hull and including a propeller rotatable about a first propeller axis;
• an electric propulsion device attachable to the hull and including a propeller rotatable about a second propeller axis different from the first propeller axis;
• and
• a controller configured or programmed to control the engine propulsion device and the electric propulsion device and, when a command is inputted to cause the engine propulsion device and the electric propulsion device to simultaneously generate propulsive forces, to perform a propulsive force matching control to match a propulsive force increasing characteristic of the electric propulsion device with a propulsive force increasing characteristic of the engine propulsion device;
• wherein
• the propulsive force matching control includes a driving start delay control to delay a driving start timing of the electric propulsion device.

A watercraft propulsion system comprising:

• an engine propulsion device attachable to a hull and including a propeller rotatable about a first propeller axis;
• an electric propulsion device attachable to the hull and including a propeller rotatable about a second propeller axis different from the first propeller axis;
• and
• a controller configured or programmed to control the engine propulsion device and the electric propulsion device and, when a command is inputted to cause the engine propulsion device and the electric propulsion device to simultaneously generate propulsive forces, to perform a propulsive force matching control to match a propulsive force increasing characteristic of the electric propulsion device with a propulsive force increasing characteristic of the engine propulsion device;
• wherein
• the propulsive force matching control includes a limitation control to maintain the propulsive force of the electric propulsion device at a constant propulsive force level that is lower than a target propulsive force level for a predetermined time period after driving of the electric propulsion device is started.