Andrew Pace
Boat stabilisers are designed to reduce the roll movement of a vessel. They work by spinning a steel flywheel at high speeds inside a vacuum-enclosed sphere, creating a powerful gyroscopic force that counteracts the boat's roll. This technology has been around for a long time, but it was previously only used on large passenger ships and superyachts. Now, smaller leisure vessels are also using boat stabilisers to increase comfort and usability.
| Characteristics | Values |
|---|---|
| How they work | Gyroscopic stabilizers use the principle of angular momentum. A spinning flywheel, the gyroscope, is mounted within a frame on a vessel, low down in the hull, and usually in the engine bay. An internal electronic sensor detects the sea state and adjusts the speed of the gyro, and effectively its torque. As the flywheel spins at incredibly high rates (above 500mph), it wants to maintain its orientation, so as the boat moves, the gyro tilts, creating a level of torque that effectively pulls the yacht out of its roll, and depending on the severity of the sea conditions, nullifies or reduces the effect of the yacht’s lateral motion. |
| What they do | Reduce roll movement of a vessel, but not very much of the pitch, sway, yaw, or massive movements you get on a vessel in waves. |
| Efficiency | The vacuum encapsulation makes the Seakeeper the most efficient gyro stabilizer. Without it, weight and power increase to combat that air friction. |
| Other features | Every Seakeeper has a hydraulic braking system and active control, smart technology that automatically gauges the sea state and reacts instantaneously. This allows for optimal performance at all speeds and sea conditions. |
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What You'll Learn
Gyroscopic stabilizers
One example of a gyroscopic stabilizer is the Seakeeper. The Seakeeper is the most efficient gyro stabilizer due to its vacuum encapsulation. Without it, weight and power increase to combat air friction. Every Seakeeper has a hydraulic braking system and active control, smart technology that automatically gauges the sea state and reacts instantaneously. This allows for optimal performance at all speeds and sea conditions. The Seakeeper has a few main features that allow it to operate as efficiently and effectively as possible: the vacuum containment enables the flywheel to spin three times faster, cut its weight by two-thirds, and halve the power requirements. Spinning a steel flywheel so fast inside the vacuum-enclosed sphere creates a bit of heat, which is removed through a proprietary closed-loop cooling system, which removes the heat and dissipates it through a glycol/seawater combination.
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Marine stabilizers
An internal electronic sensor detects the sea state and adjusts the speed of the gyro, and effectively its torque. As the flywheel spins at incredibly high rates (above 500mph), it wants to maintain its orientation, so as the boat moves, the gyro tilts, creating a level of torque that effectively pulls the yacht out of its roll. Depending on the severity of the sea conditions, the gyro will nullify or reduce the effect of the yacht’s lateral motion.
The Seakeeper is a type of boat stabilizer that uses a vacuum-enclosed sphere to spin a steel flywheel at speeds of up to 9,750 rpm. When the boat rolls, the Seakeeper tilts fore and aft, producing a powerful gyroscopic power known as angular momentum to port and starboard that counteracts the boat roll. The vacuum encapsulation makes the Seakeeper the most efficient gyro stabilizer.
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Seakeeper boat stabilizers
Boat stabilisers work by reducing the roll movement of a vessel. They do not reduce pitch, sway, yaw or massive movements in waves. One example of a boat stabiliser is the Seakeeper.
The Seakeeper is a gyro stabiliser that uses a gyroscope to stabilise a boat. It is the first stabiliser to make gyro stabilisation a realistic option for everyday boaters. Inside a vacuum-enclosed sphere, a steel flywheel spins at speeds of up to 9,750 rpm. When the boat rolls, the Seakeeper tilts fore and aft (precesses), producing a powerful gyroscopic power known as angular momentum to port and starboard that counteracts the boat roll. The vacuum containment enables the flywheel to spin three times faster, cuts its weight by two-thirds, and halves the power requirements.
The Seakeeper has a few main features that allow it to operate as efficiently and effectively as possible. Firstly, the vacuum encapsulation makes the Seakeeper the most efficient gyro stabiliser. Without it, weight and power increase to combat air friction. Secondly, every Seakeeper has a hydraulic braking system and active control, smart technology that automatically gauges the sea state and reacts instantaneously. This allows for optimal performance at all speeds and sea conditions. Thirdly, the Seakeeper has a closed-loop cooling system, which removes the heat generated by the spinning flywheel and dissipates it through a glycol/seawater combination.
The Seakeeper is a dramatic improvement in comfort and usability for boat owners. It is easy to use, as the owner does not have to change any settings based on the wave action. The owner simply has to turn it on and the Seakeeper will pace its reaction seamlessly throughout the wave period.
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How stabilizers work on large passenger ships
Stabilizers work on large passenger ships by reducing the roll movement of a vessel. They do not reduce pitch, sway, yaw, or massive movements in waves. Gyroscopic stabilizers use the principle of angular momentum to achieve this. A spinning flywheel, or gyroscope, is mounted within a frame on a vessel, usually in the engine bay. The flywheel spins at incredibly high rates (above 500mph) and wants to maintain its orientation, so as the boat moves, the gyro tilts, creating a level of torque that effectively pulls the ship out of its roll.
Gyroscopic stabilizers have been used on large ships for over a century. Modern stabilizers, such as the Seakeeper, use a vacuum-enclosed sphere to spin the flywheel three times faster, cut its weight by two-thirds, and halve the power requirements. The vacuum encapsulation also makes the Seakeeper the most efficient gyro stabilizer as it removes the weight and power increases needed to combat air friction. The Seakeeper also has a hydraulic braking system and active control, smart technology that automatically gauges the sea state and reacts instantaneously.
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How stabilizers work on small leisure vessels
Stabilizers on small leisure vessels work by reducing the roll movement of the boat. They do not reduce pitch, sway, yaw, or massive movements in waves.
Gyroscopic stabilizers work by using the principle of angular momentum. A spinning flywheel, or gyroscope, is mounted within a frame on a vessel, usually in the engine bay. An internal electronic sensor detects the sea state and adjusts the speed of the gyro, and therefore its torque. As the flywheel spins at incredibly high rates (above 500mph), it wants to maintain its orientation, so as the boat moves, the gyro tilts, creating a level of torque that effectively pulls the yacht out of its roll. The severity of the sea conditions will determine how much the effect of the yacht’s lateral motion is reduced.
The Seakeeper is a popular brand of boat stabilizer. It uses a vacuum-enclosed sphere to spin a steel flywheel at speeds of up to 9,750 rpm. When the boat rolls, the Seakeeper tilts fore and aft, producing a powerful gyroscopic power known as angular momentum to port and starboard that counteracts the boat roll. The vacuum encapsulation makes the Seakeeper the most efficient gyro stabilizer. Without it, weight and power increase to combat air friction. The Seakeeper also has a hydraulic braking system and active control, smart technology that automatically gauges the sea state and reacts instantaneously. This allows for optimal performance at all speeds and sea conditions.
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Frequently asked questions
Yes, boat stabilizers work by reducing the roll movement of a vessel.
Boat stabilisers use a gyroscopic system to counteract the roll of a boat. A steel flywheel spins at high speeds inside a vacuum-enclosed sphere, creating angular momentum.
Boat stabilizers are typically used on larger passenger ships and superyachts, but are now available for smaller boats.
No, boat stabilizers reduce the roll movement of a vessel, but not pitch, sway, yaw or massive movements in waves.
No, modern boat stabilizers automatically gauge the sea state and react instantaneously, so you can just turn it on and forget about it.
