hydraulically with a button push on the remote, and the line is now free to be eased off as needed. Installing the Butler is relatively easy for either a new or existing yacht a with a hollow suitable deck surface or moulded taffrail: an installation depth of 260mm is needed for the hydraulic pistons and the support column, with 180mm of length and width space needed. The on-deck stainless cover plate is low-profile, being only 20mm high for a 280mm length and 80mm width. Working pressure for the pistons is 160 bars for a max pressure of 180 bars. Total weight of the unit is only 8.7kg. For larger yachts up to 150ft in length, NubeWay has the Mush fairlead system developed to handle larger loads with larger lines and with a larger footprint. On yachts of this size the loads can be exceptionally great, and often require professional- level expertise to maintain safety. With the Mush system, however, the line-handling becomes easier and safer for one-person use during critical moments within the docking and mooring process.
The circular design of Mush is fundamentally different than that of Butler: the unit is a large diameter circular stem with the mooring line led through its middle when elevated. The stem lifts and retracts hydraulically, and when retracted down it will pinch the line to hold it in place under load, similar to Butler’s operation, but with greater surface area and strength – enough holding power to handle the massive loads that can be encountered when mooring a superyacht.
In use, the process starts with hydraulically lifting the circular fairlead stem from its flush deck position using the remote control, followed by leading the mooring line through the stem. The line is led to a winch where the load can be
Above: when ready to deploy, the Butler’s twin stems pop up from the base unit and a line is passed between
them. At the touch of a button they swivel and pinch the line to hold it fast. When not in use the whole unit is flush with the deck. Top right: an under-deck clearance of at least 26cm is needed. Right: the Butler holds the line
while it’s led to a winch. Far right: a hydraulic power pack delivers a working load of 160 bars
controlled until the final line position is established. Mush can handle line sizes of 12 to 60mm in diameter. With use of the remote, the stem is retracted until the line is stopped, and the load can be safely transferred to a cleat or other snubbing device. The circular design of the Mush fairlead allows for a wide variety of angles in line direction.
When ready to release the line, Mush is simply elevated by the remote control and the line is released as needed. Mush can then be retracted to be flush on its mounting, whether this is on the deck or in the cockpit – wherever the best placement requires easy line handling on either power or sail yachts. The retractable design of Mush is quite attractive for its low profile so as not to interfere with any running rigging on deck while sailing or during other manoeuvres. Installation must be to a strongly reinforced area of the deck or shear rail, but once a suitable location is found the required space is not that large: a hole of 101mm in diameter is needed, with space for four fasteners separated by 146mm. The reinforced mounting plate on deck is slightly larger than this, with the flush plate for the stem being only 30mm above the deck surface when
retracted, and rising to 100mm at full extension.
Working pressure in the hydraulic lines is 160 bars, with max pressure being 180 bars with minimum pipe diameter of 4 mm. Total unit weight is only 16 kg.
Both Butler and Mush achieve several important features for the safe and secure mooring of large yachts 50-150ft in length: l safer hands-free operation when transferring mooring line loads l reduces the line-handling operation to one crewman only l no need to hold a hauled line l no need for rolling hitches l during complex mooring operations, lines can be locked into position l anchor-casting can be performed singlehandedly l low-footprint elegant design for the fittings on deck
Both Butler and Mush are designed and manufactured in Italy to the highest standards, with rigorous testing made for resistance to stress, wear and marine corrosion. And both these stylish and innovative products are being distributed by another leader in Italian marine technology: Ubi Maior Italia.
www.ubimaioritalia.com
q SEAHORSE 81
JAMES ROBINSON-TAYLOR
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