To operate both on land and in water, Amphibious Excavator diggers have special tracks that act as propellers when in water. The tracks are connected to hydraulic motors which power the movement. When on land, the tracks function like normal excavator tracks to move and maneuver. However, when entering water, the tracks spin and propel the machine like a boat. The engine and other... https://www.newswirestats.com/amphibious-excavator-market-size-and-share-analysis-growth-trends-demand-forecasts/