At higher speeds a vessel with a displacement of about 40,000 tons would require a propulsion power of around 170,000 kW, which involves very large machinery installations.
Kwizantya eziphezulu inqanawa enofakelelo olumalunga namashumi amane omlinganiselo wesantya senqanawa iyakufuna amandla okuqhutyelwa phambili amalunga nekhulu elinamashumi asixhenxe amawaka eekilowadzi, ezibandakanya ufakelelo loomatshini abakhulu.