A marine propulsion system integrating the engine within the vessel and connecting to a drive unit externally mounted on the transom. This configuration facilitates both power transmission and steering capabilities. It is a popular choice for recreational boating, providing a balance of performance and maneuverability.
The enduring design offers several advantages, including simplified maintenance procedures and a relatively compact footprint within the boat. Its widespread adoption has led to readily available parts and service networks, ensuring long-term support. The engineering evolution of this type of drive has contributed significantly to the growth and accessibility of boating activities.