Ads
related to: boat anchor manual winch partsebay.com has been visited by 1M+ users in the past month
- Trending on eBay
Inspired by Trending Stories.
Find Out What's Hot and New on eBay
- Music
Find Your Perfect Sound.
Huge Selection of Musical Gear.
- Trending on eBay
boatoutfitters.com has been visited by 10K+ users in the past month
Search results
Results from the WOW.Com Content Network
The combined port anchor windlass and winch of the modern ferry Stena Britannica. The hydraulically operated brake and pawl allows the anchor to be dropped from the ship's bridge. [citation needed] A windlass is a machine used on ships that is used to let-out and heave-up equipment such as a ship's anchor or a fishing trawl. On some ships, it ...
Holding ground is the area of sea floor that holds an anchor, and thus the attached ship or boat. [4] Different types of anchor are designed to hold in different types of holding ground. [5] Some bottom materials hold better than others; for instance, hard sand holds well, shell holds poorly. [6] Holding ground may be fouled with obstacles. [6]
The reference load used in the design and testing of the towing winch is twice the static bollard pull. Even if AHTS-vessels are customized for anchor-handling and towing, they can also undertake, for example, ROV (remotely operated underwater vehicle) services, safety/rescue services, and supply duties between mainland and offshore installations.
Capstan winches were also important on sailing trawlers (e.g. Brixham trawlers) as a means for fetching in the nets after the trawl. When they became available, steam powered capstan winches offered a great saving in effort. These used a compact combined steam engine and boiler below decks that drove the winch from below via a shaft.
The winch is either controlled with a detachable cable, a button inside the car or wireless remote. Older vehicles may have a PTO winch, controlled via the car's transmission, a secondary clutch maybe used so the vehicle does not need to be moving while winching. Some winches are powered by the pressure generated in the hydraulic steering system.
Vitruvius, a military engineer writing about 28 BC, defined a machine as "a combination of timber fastened together, chiefly efficacious in moving great weights".About a century later, Hero of Alexandria summarized the practice of his day by naming the "five simple machines" for "moving a given weight by a given force" as the lever, windlass, screw for power, wedge, and tackle block (pulley).
Ads
related to: boat anchor manual winch partsebay.com has been visited by 1M+ users in the past month
boatoutfitters.com has been visited by 10K+ users in the past month