here here :
I remember somehow flying on board, when when landing began to knock a person 3-4... they are such a helmet-helmet-helmet.....helmet... no one supported them and somehow they were confused.
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I often applaud after flying two or three. We are polite people, thank the team and the pilots, they are pleased, this is our Russian chip.
There are a lot of foreigners on the plane, they do not have such a custom, and not to thank - it is some sort of slander.

No, friend, this is not a “Russian” chip, it is a general post-Soviet sleepiness. In the 1990s there were films in which Bruce Willis at the expense of titanic efforts sits the plane on the water, and happy passengers applaud the hero - and picked up. You don’t bother a trolleybus driver or a bus driver, or, say, a train driver. From the side it looks funny, stupid and ridiculous. The plane is no different in this regard.
By the way, if you believe the alphabet of good manners, applause after landing an airplane is considered a bad tone. The exception is the already mentioned landing in harsh conditions.