In the case of extremely high-speed ships, and especially hydro-foils and air-cushion vessels, the adoption of gas-turbine propulsion may however become essential.
Kwimeko zeenqanawa ezinesantya esiphezulu ngokugqithisileyo, ingakumbi iinqanawa ezinamaphiko ayinyusayo xa echambayo ukuze ahambe kakuhle kwakunye neenqanawa ezifana nomqamelo ovuthelweyo, ukusetyenziswa kwee-injini zomsinga wamanzi negesi kungabaluleka.