Z

A standard manoeuvring trial in which the rudder is put over alternately to each side at set heading changes, used to assess a ship's yaw-checking and course-changing ability under the IMO manoeuvring standards. IMO-grounded

A metal used for galvanising and as sacrificial anodes to protect steel from corrosion.

Coatings using a zinc-rich silicate binder that protect steel both as a barrier and by the sacrificial action of the zinc, used as primers and in tanks.