how does turbulence occur on aircrafts
and is it dangerous meet family Meier up
in the air and excited on their way to a
fantastic holiday full of sunshine fun
and relaxation but suddenly the whole
plane starts to shake the kids get
scared and think it'll crash their
parents calm them down and explain that
these vibrations called turbulence are
normal and caused by the irregular
motion of air flows although it may feel
scary it's completely harmless and
usually turbulence is over quickly just
like now flight attendant Olivia
overhears the family's conversation and
is happy to share her knowledge she
explains that planes especially their
wings are designed to be flexible this
way they're able to withstand high
forces and won't break due to turbulence
additionally there are three types of
turbulence the first one is thermal
turbulence created by rising air like
cumulus clouds or thunderstorms
mechanical turbulence however depends on
landscape and obstacles along mountains
for example strong up-and-down winds
rise olivia mentions that preceding
planes cause mechanical turbulence too
that's why the pilot had to wait a few
minutes before taking off the third type
of turbulence is triggered by wind
shears such as when flying in or out of
a jet stream this has been the case just
now Olivia stresses that there's nothing
to worry about a cockpit crew constantly
checks the weather radar for
thunderstorms owns furthermore white
controllers inform crews about possible
turbulence after getting messages from
other planes so usually the pilot
recognises turbulence early and is able
to fly around it or forewarn passengers
the family Meyer listens carefully the
kids ask what happens if the cockpit
crew can't foresee turbulence
Olivia explains that sometimes
unpredictable clear air turbulence --is
occur since there are always different
air flows but overall turbulence usually
is not strong there are four levels
light moderate severe and extreme
turbulence severe and extreme types
occur very rarely when passengers keep
their seat belts fastened throughout the
whole flight nothing can happen at all
greatly reassured the kids and their
parents enjoy the rest of the flight and
a safe landing now their vacation can
begin