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## What are the advantages of Mercator projection?

Advantages of Mercator’s projection: – **preserves angles and therefore also shapes of small objects – close to the equator, the distortion of lengths and areas is insignificant** – a straight line on the map corresponds with a constant compass direction, it is possible to sail and fly using a constant azimuth – simple …

## What is the importance of using Mercator sailing?

Mercator sailing is used **to calculate the position after sailing along a rhumb line other than in a North-South or East-West direction**. It is also used to find course and distance between two known positions.

## Why is a Mercator projection best for sea travel?

This projection is widely used for navigation charts, because any straight line on a Mercator projection map is **a line of constant true bearing that enables a navigator to plot a straight-line course**. …

[mər′kād·ər ‚sāl·iŋ] (navigation) **A method of solving the various problems involving course, distance, difference of latitude, difference of longitude, and departure** by considering them in the relation in which they are plotted on a Mercator chart.

## What is wrong with the Mercator projection?

Mercator maps distort the shape and relative size of continents, particularly near the poles. … The popular Mercator projection distorts **the relative size of landmasses**, exaggerating the size of land near the poles as compared to areas near the equator.

## What is the difference between plane sailing and Mercator sailing?

* It is **similar to plane sailing** except that plane sailing is used for small distance. * In mercator sailing the d’lat is expressed in longitudinal units, which is the difference of meridianal parts. * In plane sailing the d’long is expressed in latitude units or Nautical miles.

## What are the two categories of Mercator sailing?

In broad terms, there are two main types of sailing, namely, **the Rhumb Line sailing and the Great Circle sailing**.

## When planning to cross an ocean is it always best to use great circle sailing?

Great Circle Sailing is **used for long ocean passages**. For this purpose, the earth is considered a perfect spherical shape; therefore, the shortest distance between two points on its surface is the arc of the great circle containing two points.

## What are the 4 types of map projections?

What Are the Different Types of Map Projections?

Rank | Map Projection Name | Examples |
---|---|---|

1 | Cylindrical | Mercator, Cassini, Equirectangular |

2 | Pseudocylindrical | Mollweide, Sinusoidal, Robinson |

3 | Conic | Lambert conformal conic, Albers conic |

4 | Pseudoconical | Bonne, Bottomley, Werner, American polyconic |

## What are the advantages and disadvantages of a Mercator projection?

Advantage: The Mercator map projection **shows the correct shapes of the continents and directions accurately**. Disadvantage: The Mercator map projection does not show true distances or sizes of continents, especially near the north and south poles.

**The most common navigation methods are satnav, dead reckoning, and radar navigation.**

- Dead reckoning.
- Pilotage.
- Celestial navigation.
- Inertial navigation.
- Radio navigation.
- Radar navigation.
- Satellite navigation.

By parallel sailing we mean **travelling along a parallel of latitude from one place to another**. This means that one would either be travelling directly westward or eastward [270° (T) or 090° (T)]. … The distance decreases as the latitude increases.