Andrew Pace
A tiller is a lever attached to the rudder of a boat, which is used to steer the vessel. The rudder is a vertical, underwater blade positioned at the stern of the boat, which can be moved to the left or right by the tiller. This redirects water past the hull, creating turning motions for course changes. Tillers are used on power and sailboats, and a tiller and rudder combination is the simplest way to steer a boat. However, tillers can be fatiguing to operate, particularly in heavy seas, and can cause unsafe situations if they are left untended.
| Characteristics | Values |
|---|---|
| Definition | A tiller is a lever attached to the rudder of a boat. |
| Function | Used to steer a boat by moving the rudder left or right. |
| Steering | The tiller is moved in the opposite direction to the desired heading. |
| Boat type | Used on power and sailboats, as well as some kayaks. |
| Rudder | A vertical, underwater blade positioned at the stern of the boat. |
| Leverage | Provides limited leverage and mechanical advantage, which can make sailing tiring. |
| Autopilot | Can be controlled by an autopilot system. |
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What You'll Learn
- The tiller is a lever attached to the top of the rudder
- The rudder is a vertical, underwater blade positioned at the stern of the vessel
- The tiller and rudder work together to steer the boat
- Steering with a tiller takes a lot of practice
- Autopilots are generally less expensive and easier to install than tillers
The tiller is a lever attached to the top of the rudder
The tiller is a simple mechanism that provides a limited amount of leverage and mechanical advantage. Leverage and mechanical advantage amplify the helmsman’s use of strength and force, which makes sailing easier and far less tiring. On boats of any size, operating a tiller can be fatiguing, particularly in heavy seas. Without a steady grip on the tiller, it can jump out of the helmsman’s hand and deliver a painful blow to the gut or legs. An untended tiller can produce immediate and usually radical turning motions, causing a potentially unsafe situation for the crew and nearby vessels. An autopilot, lock, or shock cord will control tiller movement.
The tiller is usually attached to the rudder by a tightening bolt and a bracketing system. Alternatively, small fitting brackets or lugs can be welded in place, so that the tiller can be bolted or permanently welded onto them.
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The rudder is a vertical, underwater blade positioned at the stern of the vessel
The tiller is always moved in the opposite direction from the desired heading. For example, if the tiller is moved to the port (left) side, the bow turns to starboard (right). This is the reverse of steering wheel operation, and it takes some practice to get used to. Tillers are used on power and sailboats, and a tiller and rudder combination is the simplest way to steer a boat. However, the steering system can be very complex, with multiple rudders and steering components that must be aligned to work correctly. These more complicated systems can be attached to a tiller or a wheel.
Some newer style boats, such as sailing and ocean kayaks, use foot pedals attached to pulleys that lead to the rudder and move it side to side. Small outboard motors also have a tiller attached to them to turn the motor and control the engine's speed. These are usually seen on outboard motors that are 15 horsepower and below.
Using a tiller can be fatiguing, particularly in heavy seas. Without a steady grip on the tiller, it can jump out of the helmsman's hand and deliver a painful blow. An untended tiller can produce immediate and radical turning motions, causing a potentially unsafe situation for the crew and nearby vessels. An autopilot, lock, or shock cord can be used to control tiller movement.
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The tiller and rudder work together to steer the boat
The tiller is always moved in the direction opposite from which the bow is to move: if the tiller is moved to port (left), the bow turns to starboard (right); if positioned to starboard, the bow turns to port. This is the reverse of steering wheel operation, and it takes a bit of getting used to.
Tillers are used on power and sailboats, and a tiller and rudder combination is the simplest way to steer a boat. However, even with multiple rudders, some boats use tillers, some don't, and a select few offer both.
Tillers provide only a limited amount of leverage and mechanical advantage. Leverage and mechanical advantage amplify the helmsman’s use of strength and force, which makes sailing easier and far less tiring. On boats of any size, operating a tiller can be fatiguing, particularly in heavy seas. An autopilot, lock, or shock cord will control tiller movement.
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Steering with a tiller takes a lot of practice
Tillers are used on power and sailboats, and a tiller and rudder combination is the simplest way to steer a boat. However, the steering system can be very complex, with multiple rudders and steering components that must be aligned to work correctly. These more complicated steering systems can be attached to a tiller or wheel. Even with multiple rudders, some boats use tillers, some don’t, and a select few offer both.
Tillers provide only a limited amount of leverage and mechanical advantage. Leverage and mechanical advantage amplify the helmsman’s use of strength and force, which makes sailing easier and far less tiring. On boats of any size, operating a tiller can be fatiguing, particularly in heavy seas. Without a steady grip on the tiller, it can jump out of the helmsman’s hand and deliver a painful blow to the gut or legs. An untended tiller can produce immediate — and usually radical — turning motions, causing a potentially unsafe situation for the crew and nearby vessels. An autopilot, lock, or shock cord will control tiller movement.
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Autopilots are generally less expensive and easier to install than tillers
Tillers are simple to operate, but they provide only a limited amount of leverage and mechanical advantage. This means that operating a tiller can be fatiguing, particularly in heavy seas, as it requires a lot of strength and force. Steering with a tiller also takes a lot of practice, as the tiller is moved in the opposite direction to the desired heading. For example, if the tiller is moved to the left, the bow of the boat will turn to the right.
Autopilots, on the other hand, can be used to control tiller movement and do not require the same level of physical strength and practice to operate. They are also less likely to cause unsafe situations, as an untended tiller can produce radical turning motions.
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Frequently asked questions
A tiller is a lever that is attached to the rudder of a boat and is used to steer the boat.
The tiller is moved in the direction opposite from the desired heading. For example, if the tiller is moved to the left, the bow turns to the right.
An automatic boat tiller can be less fatiguing than a manual tiller, particularly in heavy seas. It can also be less expensive and easier to install than a manual tiller.
