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# About Turbulence | Science of Mechanical Engineering that we must know

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<center>![Airline-turbulence-458634.jpg](https://steemitimages.com/DQmQ1Yt9cQhXAM8dvkC9Cto6MDFKw1CPAk5fKvZ6hVhJKAA/Airline-turbulence-458634.jpg)</center>
> Ilustration About Turbulence
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Turbulence caused by weather is one of the natural phenomena resulting from warm and warm (cold) air mass meeting. In the enlightenment below will be delivered the natural phenomenon and other types that can occur in several phases of flight.

The flight phase is at the time of take-off, directing to the destination (setting course), making initial rise to the initial climbing, at cruising level, en-routing, descending, approaching, holding and landing. When the plane enters the weather or in this connection is a cloud that has the chance of turbulence it is certain that the plane will shake following the movement of the air turbulence within the cloud. 

However, if avoiding clouds or air mass meeting it then turbulence (little shake) will not be experienced by the plane. Thus turbulence can occur in all phases mentioned above if it can not be avoided. However, from these phases, turbulence is more common during the approaching & desending and landing phases. Especially natural phenomena, wind shear and micro burst are two dangerous natural phenomena that often occur at low altitude (low level) in the approach and landing phase around the end of the runway.

In accordance with reference from ICAO and Boeing, it is stated that the critical flight phase (in relation to the percentage of accidents) is at the time of take-off, approach and landing. See the flight phase from Boeing.

To complete this paper we will deliver a glimpse of information about turbulence and similar natural phenomena such as wind shear and micro burst, along with the completeness of weather warning system support facilities. Hong Kong International Airport SAR and Taiwan are the 2 airports that often experience this kind of natural phenomenon.

Most of the contents of the following are supported by reference to ICAO's Circular 186-AN / 122 on Wind shear.
With the support of advanced generations of weather surveillance equipment, cockpit crews should reduce the fear and panic of passengers by constantly avoiding clouds of potential turbulence and informing the information as early as possible. Turbulence in this article is specifically conditioned that is visually "visible" (detected on the monitar radar screen of the weather), while the unseen known as CAT can be read in another article. Advanced radar weather technology (next radar = nexrad) in this century still can not detect CAT.

As a complement we quote a statement from the Australian Transport Safety Bureau (ATSB) on turbulence as follows: "Turbulence is a weather phenomenon responsible for the abrupt sideways and vertical jolts that passengers to passengers and cabin crew. 

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