The Brown Brothers Neptun II folding stabilisers for large vessels. Fin area: 4.2 – 22.33 m2, total weight: 36.5 -190 tonnes. The transatlantic liner QUEEN MARY 2 features four sets of 15.63 m2 Neptune folding stabilisers.
The Brown Brothers Aquarius folding stabilisers designed for small cruise ships, passenger ferries, small naval and coastguard vessels. Fin area: 1.82 – 5.78 m2, total weight: 19.3 – 40.2 tonnes.
The Brown Brothers Gemini non-retractable stabilisers designed for smaller vessels. Fin area: 1.4 – 3.2 m2, total weight: 1.92 – 6.75 tonnes.
The hull-closing plate is included as an integral part of the fin unit.
The Brown Brothers Modular non-retractable stabilisers meet military standards for noise, shock and vibration levels.
Active-fin stabilisers – The reduction of rolling provides better fuel/speed performance on rough seas, enhances crew safety and possibly their efficiency. The roll amplitude can be reduced by passive devices, such as bilge keels, or by active devices, such as hydrofoil-shaped fins usually located near amidships, port side and starboard.
In a seaway, hydraulic tilting gear continuously varies the angle of attack of the fins, to produce heeling moments, reducing the ship tendency to roll. Active-fin stabilisers require ship forward motion in order to develop lift. They are available as folding types or non-retractable construction.
For many years active-fin stabilisers have been applied on cruise ships and passenger vessels as means of reducing excessive rolling. Today, owners of other types of vessels, especially large containerships, are increasingly specifying fin stabilisers.
For more information visit www.simplex-turbulo.com
Winner is David, Ian Shirreff, Zodiac Maritime!
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