Flow measurement vessel CL40Y is a small, exquisite and firm intelligent remote control measurement trimaran vessel, which provides a convenient and safe way of flow measurement for operators. The CL40Y body is made of high-strength glass fabric composite material, which is very sturdy and durable. The vessel body is of 163cm length and of about 20kg weight. It can easily be put into a small car by one person. With its driving force coming from the polymeric physical battery, CL40Y can reach the highest speed of 4m/s.