Learn how to say Rudderless correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word rudder:
a flat piece hinged vertically near the stern of a boat or ship for steering.
a vertical aerofoil pivoted from the tailplane of an aircraft, for controlling movement about the vertical axis.
[mass noun] application of a rudder in steering a boat, ship, or aircraft:
bring the aircraft to a stall and apply full rudder
a small amount of extra rudder
Old English rōther ‘paddle, oar’, of West Germanic origin; related to Dutch roer, German Ruder, also to the verb row2