The SS Great Britain was the first major steamship to take advantage of screw propulsion rather than the traditional paddles.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/80546354@N00">Howard Dickins</a> from Cardiff, UK
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/dorkomatic/8426863753/">6 bladed propeller - who needs paddles?</a>