In this task, you are given a sentence or phrase in English. You must translate it to Xhosa in a way that is equivalent in terms of meaning and grammatically correct.

As a result the propulsion power will increase at most with the square of the proportional increment in ship dimensions, while the deadweight increases with the cube of this factor.
Ngenxa, yoko amandla okuqhubela phambili ayakwanda ngakumbi ngesikwere somlinganiselo owalameneyo kumlinganiso weenqanawa, ngexa ubunzima bomthwalo wenqanawa unyuka ngekyumbu yale meko.

For the present, and in the foreseeable future, steel has no competitors, at least for the hull construction of large ships.
Okwangoku, kwanakwixesha elizayo, intsimbi ayinakhuphiswano, ubuncinanana ekwakhiweni kwesiqu senqanawa seenqanawa ezinkulu.

This is still attached to the swivel.

Isanamathele kumakhonkco ajika-jikayo.