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Mast furling systems avoid the issues of boom furling, but add their own issues. Mast furling systems essentially eliminate the possibility of battens, as vertical battens are not practical. Without battens, the mainsail must be cut with a hollow leech, like the typical jib, which reduces the sail area. Mast furlers also add mass all along the ...
A dismasting can also endanger lives after the mast has fallen. The reason is the broken tangle of mast, rigging, and sails usually remains attached to the vessel owing to the rigging. If waves bash a large broken mast section against a relatively thin modern hull, the entire vessel can be lost. [2]
Roller reefing also allows more variable sail area than conventional or jiffy reefing. Countering these advantages are the furled sail possibly not having an optimal shape and sail repair or replacement being more difficult. In-mast roller-furling mainsails are not conducive to good sail shape. [3]
If no downhaul is present, the gooseneck is usually fixed vertically to the mast and a cunningham may be used to control luff tension. The boom vang, kicking strap or kicker is an intricate set of pulleys (and, on yachts, a hydraulic ram) running diagonally between the boom and the lower portion of the mast. The kicker pulls the boom downwards.
The headsail of a sloop (where roller furling is not fitted) is often lashed to a guardrail or along a bowsprit. [1] [2]: 104–110 A square sail is furled by gathering it more closely to the yard than is achieved by the buntlines and clewlines and securing it to the yard with gaskets. When bending a sail onto a yard, a square sail is usually ...
The inappropriate activation of mast cells can lead to many possible symptoms, depending on where the triggered mast cells are, and may include: Heart issues such as a racing heart or low blood ...
Many mast-aft rigs utilize a small mainsail and multiple staysails that can resemble some cutter rigs. A cutter is a single masted vessel, differentiated from a sloop either by the number of staysails, with a sloop having one and a cutter more than one, or by the position of the mast, with a cutter's mast being located between 50% and 70% of the way from the aft to the front of the sailplan ...
On a sloop, there is a single forestay that runs from the top of the mast forward to the prow, and in addition to bracing the mast it provides a firm support to which a jib can be attached. When this forestay is covered with a roller-furling jib, which cannot be quickly removed, it becomes impossible to attach a different sail to the same stay.