I saw this video of a "wing-wave" immediately after takeoff of a 747-8 pop up on my Instagram feed. In the description, someone says that their friend is the pilot and that he did it to wave goodbye as it was the planes last visit to the airfield and that this is a tradition among pilots.
To the layman like me, it doesn't look too safe - but since the pilot did it, I'm sure it is. Is this really a pilot tradition and do they do this on passenger flights and most importantly, was this safe?
A comment (for what it is worth) said:
Steep banking an aeroplane few seconds after rotation at dangerously low speed and low altitude is always dangerous. Waving goodbye is not uncommon however this would be considered reckless. I would not be surprised if his competent authority and Company would have an issue with this.