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.

These must be observed in the construction of ships classed with them.
Oku kufuneka kujongisiswe kulwakhiwo lwenqanawa eyahlulwa kuzo.

The angle off the vertical that a vessel takes in response to wind pressure on the hull or the outward forces created turning a turn, especially at speed.
I-engile eyenzeka ngokuthe nkqo ethi yenziwe yinqanawa xa izama ukuphikisana noxinzelelo lomoya otyhala ngamandla esiqwini senqanawa nto leyo idala ukujika kwayo ngokukhawuleza okukhulu.

All such openings are marked with a red disc or triangular flash and are known as red openings.

Zenke indawo ezivulekaye ezinjalo ziphawulwe ngecwecwe olubomvu, okanye unxantathu odanyozayo kwaye zoziwa njengezivulo ezibomvu.