Ads
related to: lead line navigation device for boats free shipping code 20% discount
Search results
Results from the WOW.Com Content Network
A sounding line or lead line is a length of thin rope with a plummet, generally of lead, at its end. Regardless of the actual composition of the plummet, it is still called a "lead". Leads were swung, or cast, by a leadsman, usually standing in the chains of a ship, up against the shrouds. [4] Measuring the depth of water by lead and line dates ...
Marine chronometer used to determine time at the prime meridian with great precision which is necessary when reducing sights in celestial navigation. Nocturnal used to determine apparent local time by viewing the Polaris and its surrounding stars. Ring dial or astronomical ring used to measure the height of a celestial body above the horizon ...
The top manufacturer is Garmin's Marine division with a turnover of US$917 Million in 2023 [8] followed by Brunswick-owned Navico Group (Simrad, Lowrance, B&G and several other brands), with a turnover of US$915 Million (although this includes sales of equipment which is not marine electronics, such as batteries, cables and pumps).
Diagram of a chip log attached to a log-line and reel on a ship. A chip log, also called common log, [1] ship log, or just log, is a navigation tool mariners use to estimate the speed of a vessel through water. The word knot, to mean nautical mile per hour, derives from this measurement method.
A navigational aid (NAVAID), also known as aid to navigation (ATON), is any sort of signal, markers or guidance equipment which aids the traveler in navigation, usually nautical or aviation travel. Common types of such aids include lighthouses , buoys , fog signals , and day beacons .
Retrieved from "https://en.wikipedia.org/w/index.php?title=Lead_line_(nautical)&oldid=1032658570"
Lead line ("Leed" line) may refer to: Lead line, used in depth sounding; Leadline, a horse show class for children; Lead (tack), for leading livestock; Leash, for dogs and other small animals; And also to ("Led" line): Burton line, a symptom of lead poisoning; Sounding line, an instrument used in navigation to measure water depth (the plummet ...
This change is then converted to ship's speed. Distance is determined by multiplying the speed and the time. This initial position can then be adjusted resulting in an estimated position by taking into account the current (known as set and drift in marine navigation). If there is no positional information available, a new dead reckoning plot ...
Ads
related to: lead line navigation device for boats free shipping code 20% discount