As the speed and size of ships continue to increase the question of the amount of power that has to be concentrated into a propulsion plant becomes increasingly acute.
Njengokuba isantya nobungakanani benqanawa buqhubeka nokunyuka umbuzo wobungakanani bamandla ekufuneka ehoyiwe kwisityalo esiqhubela phambili buya buba bukhali ngaphezulu.