The angle between the centre line of the shaft and the centre line of the ship is the horizontal angle and the angle between the centre line of the shaft and either the base line or the designed waterline is the vertical angle.
I-engile ephakathi kombindi womgodi kunye nombindi wenqanawe yi-engile elundi kunye ne-engile ephakathi kombindi womgodi mhlawumbi nendawo aze kuthi xhaxhe kuyo amanzi enqanawe kuthiwa yi-engile ethe nkqo.