Abstract: Virtual reality is one of the novel technologies used mostly for entertainment purpose. It is really a good environment to enhance the feeling of user during playing the game and to obtain a realistic environment. Besides, this technology can be utilized as an educational tool. By this way, the students will learn the subject by using more senses in a funny method. The meaning of operational education is a kind of hands on education in which a series of procedures should be completed in a correct order and a limited time. However, the tools and hardware are needed for hands on education which means high cost. Virtual reality is one of the solutions to achieve operational education without using many hardware and tools by it is capability to simulate the realistic environment. Actually, it has been already started to use in education of military and medical students. In our case, we focus on the education of marine engineers which includes many operations of a very complex power system. Therefore, it will be possible to teach many kinds of mechanical operations with only virtual reality tools and eliminating a large amount of expensive hardware.