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A padeye is a device often found on boats or ships that a line runs through or provides an attachment point. It is a kind of fairlead and often is bolted or welded to the deck or hull. It is also used in oil and gas projects to assist in the purpose of lifting.
A D-ring used to secure cargo in a utility trailer (A) D-ring (shown in isometric view) (B) Weld-on pivot link; note the incorrect fillet weld call-out (bottom-right). The correct method of securing a weld-on pivot link is a [t weld] which consists of a perpendicular vee butt joint secured to the billet using a butt weld or fusion weld.
In rowing, oars are used to propel the boat. Oars differ from paddles in that they use a fixed or sliding fulcrum, an oarlock or rowlock attached to the side of the boat, to transfer power from the handle to the blade, rather than using the athlete's shoulders or hands as the pivot-point as in canoeing and kayaking.
On a sailing boat, the shrouds are pieces of standing rigging which hold the mast up from side to side. There is frequently more than one shroud on each side of the boat. Usually a shroud will connect at the top of the mast, and additional shrouds might connect partway down the mast, depending on the design of the boat.
The form is a long shaft (or loom) with a flat blade on the end. Where the oar connects to the boat there is a "collar" (or button), often made of leather, which stops the oar slipping past the rowlock. Oars usually have a handle about 150mm long, which may be a material sleeve or alternatively an ovoid shape carved to fit the hands.
In watercraft, a racing shell (also referred to as a fine boat (UK) or simply a shell) is an extremely narrow, and often comparatively long, rowing boat specifically designed for racing or exercise. It is equipped with long oars, outriggers to hold the oarlocks away from the boat, and sliding seats. The boat's long length and semicircular cross ...
ROV at work in an underwater oil and gas field. The ROV is operating a subsea torque spanner tool on a valve on the subsea structure.. Anchor Handling Tug Supply (AHTS) vessels are mainly built to handle anchors for oil rigs, tow them to location, and use them to secure the rigs in place.
The first generation, built around 1970, included a backstay and was used on many production boats. A patent application for the B&R rig was submitted in 1973 and was granted in 1975. [ 1 ] A second generation eliminated the backstay but used solid, deck-mounted struts to brace the lower mast section.
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