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tiller

 
Dictionary: till·er1   (tĭl'ər) pronunciation
n.
One that tills land: a tiller of soil.


til·ler2 (tĭl'ər) pronunciation
n. Nautical
A lever used to turn a rudder and steer a boat.

[Middle English tiler, stock of a crossbow, from Old French telier, from Medieval Latin tēlārium, weaver's beam, from Latin tēla, web, weaver's beam.]


til·ler3 (tĭl'ər) pronunciation
n.
A shoot, especially one that sprouts from the base of a grass.

intr.v., -lered, -ler·ing, -lers.
To send forth shoots from the base. Used of a grass.

[Middle English *tiller, from Old English telgor.]


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n. a horizontal bar fitted to the head of a boat's rudder post and used for steering.

See the Introduction, Abbreviations and Pronunciation for further details.

WordNet: tiller
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Note: click on a word meaning below to see its connections and related words.

The noun has 4 meanings:

Meaning #1: a shoot that sprouts from the base of a grass

Meaning #2: someone who tills land (prepares the soil for the planting of crops)

Meaning #3: lever used to turn the rudder on a boat

Meaning #4: a farm implement used to break up the surface of the soil (for aeration and weed control and conservation of moisture)
  Synonym: cultivator


The verb tiller has one meaning:

Meaning #1: grow shoots in the form of stools or tillers
  Synonym: stool


Wikipedia: Tiller
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Tiller blocked by two lines

A tiller or till is a lever attached to a rudder post (American terminology) or rudder stock (English terminology) of a boat that provides 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.

Rapid or excessive movement of the tiller results in an increase in drag and will result in braking or slowing the boat. In steering a boat, the tiller is always moved in the direction opposite of which the bow of the boat is to move. If the tiller is moved to port side (left), the bow will turn to starboard (right). If the tiller is moved to starboard (right), the bow will turn port (left). Sailing students often learn the alliterative phrase "Tiller Towards Trouble" to remind them of how to steer.

As the size of boat increases the force 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 22 metres long and steered by a tiller are being built.

In modern boats emergency tillers are often carried in case the steering wheel on a vessel fails to operate.

Tiller orders

Until the current international standards were applied in the 1930s, it was common for steering orders on ships to be given as "Tiller Orders", i.e. the order given dictated which side of the vessel the tiller was to be moved. Since the tiller's movement is reversed at the rudder, orders were seemingly given "the wrong way round". For example, to turn a ship to port (its left side), the helmsman would be given the order "starboard helm" or "x degrees starboard". The ship's tiller was then put over to the side ordered, turning the rudder to the vessel's port side, producing a turn to port.

When large steamships appeared in the late 19th century with telemotors hydraulically connecting the wheel on the bridge to the steering gear at the stern, the practise continued. However the helmsman was now no longer directly controlling the tiller, and the ship's wheel was simply turned in the desired direction (turn the wheel to port and the ship will go to port). Tiller Orders remained however: although many maritime nations had abandoned the convention by the end of the 19th century, Britain retained it until 1933 and the U.S. merchant marine until 1935.[1]

A well-known and often-depicted example occurred on the RMS Titanic in 1912 when she collided with an iceberg. The iceberg appeared directly in front of the Titanic. Her officer-of-the-watch, First Officer William Murdoch, decided to attempt to clear the berg by swinging the ship to its port side. He ordered 'Hard-a-Starboard', which was a Tiller Order. The helmsman turned the wheel to port as far as it would go. The Titanic's steering gear pushed the tiller over to the starboard side of the ship, causing the rudder to swing over to port, causing the vessel to turn port. These actions are faithfully portrayed in the 1997 film of the disaster- although frequently described as an error, it is correct.

Although this system seems confusing and contradictory today, to generations of sailors trained on sailing vessels with tiller steering it seemed perfectly logical and was instinctively understood by all seafarers. Only when new generations of sailors trained on ships with wheel-and-tiller steering came into the industry was the system replaced.

Tillers on other vehicles

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 7–13 July 1898.

Tractor-drawn ladder trucks utilize a tiller (rear steering axle) driver to control the trailer where the aerial ladder is located.

Some jetliners, such as the Boeing 737, use a tiller to steer while taxiing.

References

  1. ^ Harland, John (1984). Seamanship in the age of sail. London: Conway Maritime. pp. 175–176. ISBN 0 85177 179 3. 

Translations: Tiller
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Dansk (Danish)
1.
n. - rorpind

2.
n. - rodskud
v. intr. - skyde rodskud

3.
n. - grubbe

Nederlands (Dutch)
roer(pen)

Français (French)
1.
n. - (Naut) barre

2.
n. - (Hort) pousse
v. intr. - pousser (une plante)

3.
n. - (Hort) motoculteur

Deutsch (German)
1.
n. - Ruderpinne

2.
n. - Schößling
v. - Schößlinge treiben

3.
n. - Pflüger

Ελληνική (Greek)
n. - αγρότης, καλλιεργητής (κν. ζευγάς), (ναυτ.) δοιάκι, λαγουδέρα

Italiano (Italian)
barra, coltivatore, agricoltore

Português (Portuguese)
n. - lavrador (m), agricultor (m), rebento (m)

Русский (Russian)
(мор.) румпель, (тез.) рукоятка, рычаг, земледелец, фермер, землеобрабатывающее орудие, (амер.) культиватор, окучник, отросток (от корня), побеги, молодое деревце

Español (Spanish)
1.
n. - caña del timón

2.
n. - retoño
v. intr. - retoñar

3.
n. - labrador, arado

Svenska (Swedish)
n. - jordbrukare, jordbruksarbetare (litt.), rorpinne, rorkult (sjö), rotskott, telning

中文(简体)(Chinese (Simplified))
1. 耕作者, 农夫, 耕作机

2. 舵柄

3. 分蘖, 长出分蘖

中文(繁體)(Chinese (Traditional))
1.
n. - 分櫱
v. intr. - 長出分櫱

2.
n. - 耕作者, 農夫, 耕作機

3.
n. - 舵柄

한국어 (Korean)
1.
n. - 키 손잡이

2.
n. - 어린 나무, 새싹, 곁눈
v. intr. - 새싹이 나오다

3.
n. - 경작자, 농부, 경운기

日本語 (Japanese)
n. - 舵の柄, 耕作する人, 農夫

العربيه (Arabic)
‏(الاسم) الفلاح, ألحارث‏

עברית (Hebrew)
n. - ‮ידית-ההגה (בסירה)‬
n. - ‮נצר הצומח מתחתית הגבעול, בעיקר של דגן‬
v. intr. - ‮פיתח נצרים (צמח)‬
n. - ‮משדדה, איכר, עובד-אדמה‬


 
 

 

Copyrights:

Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.  Read more
US Military Dictionary. The Oxford Essential Dictionary of the U.S. Military. Copyright © 2001, 2002 by Oxford University Press, Inc. All rights reserved.  Read more
WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved.  Read more
Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Tiller" Read more
Translations. Copyright © 2007, WizCom Technologies Ltd. All rights reserved.  Read more