Earthrace is a 78-foot-long ship that uses completely replaceable biofuels.

The engine power of this ship is entirely provided by biodiesel.

The "Earth Race" is known as the fastest eco-ship in the world, with a cost of 2.4 million US dollars and a combination of many high technologies. The "Earth Race" is about 23.8 meters long and looks like a swan spreading its wings. The hull is protected by a three-layer shell and equipped with two advanced engines.

The top speed can reach 40 knots (about 74 kilometers), even if sailing in huge waves, the speed will not slow down.

2。 Naval University of Engineering has learned that a "bubble boat" developed by its manager, Dr. Cai Wen, is expected to exceed 100 km/h and become the fastest boat in the world.

According to reports, water resistance is the main factor affecting ship speed. Reducing resistance can effectively improve speed. How to improve the speed by reducing the resistance of gas layer has always been an important direction for ship experts from all over the world to tackle key problems.

After a lot of research and experiments, Dong Wencai has made a great breakthrough in the theoretical study of drag reduction in the air layer of high-speed craft: a thin layer of bubbles (a mixture of air and water) is produced between the moving hull and the water surface, just like a layer of lubricating oil is coated between two friction bodies. After adopting this technology, the high-speed boat is also called "bubble boat", which can reduce the resistance by 25% and greatly improve the speed.