What is clear-air turbulence and how was SQ321 affected?

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[zzzowie]

Finally a reasonably accurate description of what happened, after many incorrect stories about a sudden/steep 6000ft drop, which was just a controlled change of flight level.

[agsp]

God bless that captain and his pilots team who were able to land safely!!!!

[Leonaristo]

The video and explanation are awesome. The SQ pilots in the flight managed to control that 777-300ER in that few seconds of extreme and irregular altitude change (imagine the G-force and pressure exerted on their bodies, even they have their harness fasteened) are super-heroes! The pilots and the training they received deserve our big respect and deep appreciation.

[vlgfmvz]

The SIA pilot should be praise for landing safely in spite of the injured passengers in the ❤turbulance

[annalburo]

i cant imagine the fear they felt at that moment.lucky they landed safely salute to the very well trained pilots

[PixelsPeeper]

The animation of this video is second to none

[char]

Clear air turbulence is such a peaceful sounding name for something this terrifying

[aassassin]

Finally a video not afraid to use aviation jargon / extremely technical terminology. Bravo CNA!🎉🎉🎉

[Twosistersever]

Great depiction and rubbishing the theories of 6k ft drop in a few seconds.
While now we are left to analyse what could have been done better to avoid severe turbulence, but none think of the upside that maybe pilot controlled the aircraft well enough that they didn't lose control to let it crash in such a steep height it went to incline. They managed to bring the height back to the original even after hitting the unexpected, saving many other lives. I hope that this won't have happened, but I also feel thankful that many families saw their loved ones returning home safely.

[hydrazine]

Impossible to predict clear air turbulence with current technology. Always fasten your seatbelt at all time even if the seatbelt sign is off, unless you are going to the loo.

[harisudan]

Please try to post a video of an interview someone who didn’t sustain major injuries and ask them what they did different, as an awareness

[PeterSoeWynn]

Thank you for the post/video. Very informative and helpful. Clear and well presented with animation which helps understanding about air turbulence and the Clear Air Turbulence.

[panzfaust]

That rapid change of speed was something. The fact The plane hold its shape is even amazing

[robyn_rainbow]

Wow this really showed well how terrifying those drops would have been. Thanks for explaining it so well.

[ThickBanana]

Air turbulence in southeast Asia including around Singapore can be significant. This incident showed the real importance of wearing your seatbelt.

[naszcreations]

Hats off to the pilot 🧑‍✈️ brave soul❤❤🎉

[kingsufi]

salute to the pilot. In that moment, he knows what to do, and didn't give up and tried saving the entire plane.

[yqvvefn]

I remember when I was 16 years old going on holiday to Singapore from the UK this exact same thing happened over 10 years ago. It was terrifying and it was my first flying experience

[CaptStevenHorn]

There was no CAT in the area because the Jetstream was extremely weak. There was however embedded storms forecast on the flight path. The aircraft blundered into the top of a thunderstorm.

[tooterooterville]

Actually, the structural elements of the airframe are not particularly stressed in such conditions because it is simply being carried in the direction of the airmass. However, the untethered elements within the airframe are subject to the inertial forces from rapidly changing direction, i.e. carry-ons, food trays, bodies, etc. It's as if you were riding on a roller coaster without any restraint bar or harness.