Inboard propulsion systems that utilize an impeller to create a powerful jet of water for thrust, rather than a conventional propeller, are currently available for purchase. These systems offer distinct advantages in certain boating applications, such as shallow-water navigation and maneuverability.
These specialized propulsion units provide enhanced control and responsiveness, particularly in challenging environments. Their design eliminates exposed propellers, reducing the risk of damage or injury. Historically, this technology has evolved from early pump-jet designs, finding applications in personal watercraft and specialized boats before becoming more widely available across diverse hull types. The absence of a lower unit also simplifies maintenance and reduces drag, potentially improving fuel efficiency.
