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Although the traditional boat hook is still available, various different materials, such as aluminium and even a rolled up polymer are now available. [3] Although the boat hook is a general purpose reaching and holding-off tool on boats, there are more specialised forms, such as the Recovery Pole [4] designed for length rather than the rigid strength of a boat hook.
Modern anchors for smaller vessels have metal flukes that hook on to rocks on the bottom or bury themselves in soft seabed. The vessel is attached to the anchor by the rode (also called a cable or a warp). It can be made of rope, chain or a combination of rope and chain. The ratio of the length of rode to the water depth is known as the scope.
A pelican hook is a piece of nautical rigging hardware . It is composed of a hinged link held closed by a circumferential link capable of being released under load. Small examples are held closed by hand while the retaining link is displaced while larger examples are hit with a hammer or sledge hammer [1] [2] to release.
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The first boats were due for release to the public in mid-2013. Before release, the Quickboat was expected to weigh around 50 kg, seat four people, and to have a capacity for up to a 9.8 hp engine providing it with top speeds in excess of 20 knots.
Tugboat diesel engines typically produce 500 to 2,500 kW (~ 680 to 3,400 hp), but larger boats (used in deep waters) can have power ratings up to 20,000 kW (~ 27,200 hp) [citation needed]. Tugboats usually have an extreme power : tonnage -ratio; normal cargo and passenger ships have a P:T-ratio (in kW: GRT ) of 0.35 to 1.20, whereas large tugs ...
Inglefield clips, from a Royal Navy handbook of 1943 Two brass Inglefield clips connected (a standard clip on the left and a swivel clip on the right).. The Inglefield clip (also known as a sister clip [1] and a Brummel hook [2]) is a clip for joining a flag or ensign quickly, easily and securely to flag halyards so that the flag can be hoisted. [3]
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