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## Why it is called plane sailing?

‘Plane sailing’ is **a simplified form of navigation, in which the surface of the sea is considered to be flat rather than curved**, that is, on what mathematicians call a ‘plane surface’. … Plane Trigonometry applied in Problems of Sailing by the Plane Sea-Chart, commonly called Plane-Sailing.

## How is plane sailing calculated?

When a ship sails along any rhumb line except a meridian or parallel of latitude, the distance sailed, the d. … These relationships are now known as the plane sailing formulae, namely: **departure = distance x sine course d.** **lat.** **=distance xcosine course.**

## What is the importance of plane sailing?

Plane sailing solves problems involving **a single course and distance, difference of latitude, and departure**, in which the Earth is regarded as a plane surface. This method, therefore, provides solution for latitude of the point of arrival, but not for longitude.

## What are meridional parts?

: **the linear length of one minute of longitude on a Mercator chart**.

## 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 is Traverse sailing?

: **plane sailing in which a ship follows two or more courses in succession with the difference in latitude and departure being added algebraically** to find a single resultant course and distance.

**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.

Departure is **the distance along a parallel between two points**. Whereas a degree of latitude is always the same distance, a degree of longitude is different in length at different latitudes. In practice, this distance is usually given in nautical miles.

## What is mid latitude sailing?

[′mid·əl ¦lad·ə‚tüd ‚sāl·iŋ] (navigation) **A method of converting departure into difference of longitude, or vice versa**, when the true course is not 090° or 270° by assuming that such a course is steered at the middle latitude.

## What is smooth sailing?

: **easy progress without impediment or difficulty** After the mix-up was rectified, it was smooth sailing again.—

## Why was plain sailing in the end?

Answer: The expression is mostly used in informal contexts to mean ‘**smooth and easy progress**‘. When you say that something was plain sailing, you mean things went off without a hitch; there were no problems or obstructions of any kind along the way.