TILLER

A 'tiller' or 'till' is a lever attached to a rudder post (American terminology) or rudder stock (English terminology) of a boat in order to provide the leverage for the helmsman to turn the rudder. The tiller is normally used by the helmsman directly pulling or pushing it, but it may also be moved remotely using tiller lines.
As the size of boat increases the power needed to control the rudder via a tiller becomes excessive. In the 21st century, tiller steering tends not to be used on new boats with an overall length in excess of approximately 10 metres, except on narrowboats on English canals where boats up to 72 feet long and steered by a tiller are being built.
The first automobiles were steered with a tiller, but Packard introduced the steering wheel on the second car they built, in 1899. Within a decade, the steering wheel had entirely replaced the tiller in automobiles.
Arthur Constantin KREBS replaced the tiller with an inclined steering wheel for the Panhard & Levassor car he designed for the Paris-Amsterdam race which ran from the 7th to 13rd of July 1898.
Tractor-drawn ladder trucks utilize a tiller (rear steering axle) driver to control the trailer where the aerial ladder is located.

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★ Yacht tillers and steering