- The gooseneck is where the boom attaches to the mast. This is made up of three parts.
- The gooseneck lugs – these are either lugs on a plate that are fastened to the mast, or lugs welded straight onto the mast.
- The goosneck knuckle – this is the fitting that goes between the gooseneck lugs on the mast and the end plate lugs on the boom. The knuckle allows articulation of the boom joint in all possible directions while preventing the boom from rolling over which can jeopordise its structure!
The end plate and lugs – this goes on the front of the boom and is built to have the gooseneck knuckle fit snuggly inside it.
There are a wide range of fittings both fabricated and cast on the market for goosenecks. Which to use depends largely on the application for which they are going to be used. If your unsure dont hesitate to ask one of our trained staff.
The vang attachment can be made up much like the goosneck if you require a solid vang (which supports the boom when the mainsail is lowered without you have to have the extra weight aloft of a boom topping lift). Otherwise the vang attachment can be a single lug which the block and tackle for the vang can be shackled straight onto.
Some yachts (usually racing yachts) will have their mast go through the deck and sit on the keel of the hull below. Where the mast goes through the deck is often referred to as the “partners”. At this point you have to have a way of leading all of the halyards to the back of the boat where the crew can operate them. The deck collar fills this role by providing block attachment points as well as providing a solid point for deck tie downs. Every keel stepped mast should have at least one deck tie down, and it should be very secure. The deck tie down prevent the halyard load from pulling the deck up around the mast, thus possibly causing structural damage. If you discover your yacht doesnt have any sort of deck tie down system contact us before doing any more sailing.
The base of a mast is the point where the large majority of the loads of the mast come into one point (the rest of the load going to the chainplates). It is very important that this part of the mast be held together with either a cast base or fully fabricated and welded base. This type of finishing of the mast prevents any damage occuring to the tube as the load is applied to it. Without this you can have a situation where the mast will either buckle inwards or outwards over time.
Depending on the type of mast and uses for the boat your mast could have any number of accessories. Taskers is able to provide support and advice on mounting systems, attachments and servicing of these accessories. If your unsure about any of these extra accessories on your mast, dont hesitate to contact us.