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

Owona mgama mkhulu apho isithatha esisuka esibaneni sinako ukufikelela ngumhloli, ngokuminywa kuphela
The maximum distance at which light from a light can theoretically reach an observer, as limited only by

Le na ibotshelelwe emazontsi ngomhla esisigxina. Wokubopho-lela iankile, na meTyothanga okubophelela.
This in turn is secured to the bottom by its own permanently-laid groundwork of mooring anchors and mooring chain.

Ukuba umzekelo isikhephe sibaleka ngokwesantya esibekiweyo esingu-4 phambi komoya wokwenyani wesantya esibekiweyo esingu-10 umoya onguwo osebenzayo kwiseyile zawo ukuziqhubela phambili uzakuba ngu-6 wesantya esibekiweyo.

If, for example, a boat is running at, say, 4 knots before a true wind of 10 knots the effective wind acting on her sails to drive her ahead is only 6 knots.