- published: 26 Jan 2016
- views: 2815
How to measure distance on a nautical chart.
How to measure distance on a chart and work out the time it will take to travel. Nautical navigation. Watersports training
via YouTube Capture
We talk about a vehicle "log" and a "rate of knots", but where did the terms come from? As Rob explains, they date back to the equipment on sailing ships.
Calculate the distance between two cities.
Explore shallow reef-strewn waters of the Bahamas. We run up on the beach in the far-out Bahamian Islands. Travelling the Far-Out Islands of the Bahamas there are often no other boats around for days. This trip was in the late spring, and we visited islands where very few boats travel. Our boat is very shallow with a swinging keel - our draft is just 3 feet with the keel up. Using the Explorer charts for the Bahamas we visited the Crooked and Acklins group, then sailed on to the Exumas. Check out our boat here... http://www.distantshores.ca/about-us/the-boats/southerly-42/ All 130 half hour episodes of the Distant Shores TV show are also available on DVD and download at: http://www.distantshores.ca/sailingdv... This on-going television series following the Shards' global sailing adven...
What is NAUTICAL MILE? What does NAUTICAL MILE mean? NAUTICAL MILE meaning - NAUTICAL MILE definition -NAUTICAL MILE length - NAUTICAL MILE explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. A nautical mile (symbol M, NM or nmi) is a unit of distance, set by international agreement as being exactly 1852 meters (about 6,076 feet), compared with the 5,280 feet in a statute mile. Historically, it was defined as the distance spanned by one minute of arc along a meridian of the Earth (north-south), and developed from the sea mile and the related geographical mile. Graphic scale from a Mercator projection world map, showing the change with latitude It is a non-SI unit (although accepted for use in the International System of Unit...
The nautical mile (symbol M, NM or nmi) is a unit of distance that is approximately one minute of arc measured along any meridian. By international agreement it has been set at 1,852 metres exactly (about 6,076 feet). It is a non-SI unit (although accepted for use in the International System of Units by the BIPM) used especially by navigators in the shipping and aviation industries, and also in polar exploration. It is commonly used in international law and treaties, especially regarding the limits of territorial waters. It developed from the sea mile and the related geographical mile. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
You can obtain a fix by combining two or more distances or distances and compass bearings. This is how you plot a fix position combining two or more distances: Let's assume you sail near the coast. The radar is in good working condition and in operation. Taking into account your last position, and after comparing the nautical chart's coast line with that on the radar screen, you spot two points on the screen, A and B, from where you can take distances. The equivalent ones on the nautical chart are points A and B. Using the radar's range marker you measure a distance of 5.2 nautical miles from point A, and 2.8 nautical miles from point B. You note the time - let's assume it is 0930 hours. Then return to the nautical chart, and using the dividers, span a distance of 5.2 nautical mil...
This short 'how to' film by Stormforce Coaching's Principal, Doug Innes, demonstrates how to measure the distance between two points on a chart, using latitude. Doug explains how to use a latitude scale and a set of dividers to measure a distance, and how to equate minutes and miles.
This video is part 2 of the "Getting Started in Celestial Navigation" video series. Part 2 of "Getting Started in Celestial Navigation," (The Noon Sight) describes the process of finding latitude at noon from the sun, and introduces the concepts of geographic position, zenith distance, and declination. It also briefly introduces the Nautical Almanac, and features three example problems. Here are some additional resources pertaining to this lesson: 1. Wikipedia "Geographic Position" - http://en.wikipedia.org/wiki/Geographic_coordinate_system 2. Wikipedia "Zenith" - http://en.wikipedia.org/wiki/Zenith 3. Wikipedia "Equinox" - http://en.wikipedia.org/wiki/Equinox 4. Wikipedia "Declination" - http://en.wikipedia.org/wiki/Declination 5. Wikipedia "Lahaina Noon" - http://en.wikipedia.o...
Answer to Navigation question 10 - Use dividers to on the Timor Sea chart below to find the distance in nautical miles between : a) the peak on Moa and the northern lighthouse on Wetar b) the lighthouses on Kisar and Lakor c) Recon light and the peak on Babar
We have been filming the Distant Shores sailing adventure TV series since 1998. The show has been translated into 28 languages and seen by many millions on television stations around the world. So here's a peak into how we make our Sailing Television video series - and what it costs to produce… All 130 half hour episodes of the Distant Shores TV show are also available on DVD and download at: http://www.distantshores.ca/sailingdv... This on-going television series following the Shards' global sailing adventures can be viewed on AWE TV in the USA and Caribbean. Watch it on Nautical Channel in Europe, Asia, Africa and many other countries around the world. http://nauticalchannel.com/shows/show/distant-shores
In this tutorial, Jennifer shows how you can use a location's latitude to determine how far north or south it is from another location. The same process can be used to calculate how far east or west a location is from another using longitude. One important reminder that is shown is how many minutes of latitude are in one degree of longitude.