Investigating the performance of high power Laser guns against high speed crafts

Laser has been used from the late of 1980-1990 decade as an identifying weapon besides radar. In 1990-2000 decade the design and production of high power electromagnetic guided energy weapons was started and used as an anti-missile and nuclear weapons for world big power armies. Recently, US Navy force in Persian Gulf reported from a Laser gun system on their ships against Sepah's UAV and high speed crafts. Of course, its true capability and efficiency is unbelievable and has many problems. In this paper, based on thermodynamic laws, scientifically discuss the details of Laser interaction with metal and nonmetal (fiberglass) surfaces of ship's equipments and body. Also, the effect of ship's body material and mobility (speed and direction) on the performance of Laser gun is analyzed. Our analysis results and presented curves shows that the capability of Laser gun against UAV and high speed crafts seriously is limited and still they are not efficient tactically.