What is an impeller?

An impeller is a critical component of certain types of water propulsion systems, specifically in watercraft that utilize jet propulsion. It functions by spinning and drawing water in, then forcing it out under pressure, which propels the vessel forward. This mechanism allows for efficient movement through the water, making it essential for jet boats and some other water vehicles. The impeller's design enables it to create a high-velocity jet of water, which provides thrust and maneuverability. Understanding the role of the impeller is important for boat operation and maintenance, as it directly influences the performance and efficiency of the vessel.