The earliest screw-driven iron ship in the navy was the royal yacht Fairy of 1845.
Ngexesha leenqanawa zentsimbi ezaziqhutywe ngesiskrufu kwiinqanawa zokulwa yayizezobukumkani besikhitshane ngonyaka wekhulu elineshumi elinesihlanu lamawaka anamashumi amane anantlanu.