Quote from Cough:
"To make the point - Your beautifully described wing down technique isn't approved on many types."
True. Not on the B707 or DC-8 (particularly not on the CFM-engined variants), and presumably not on the B747, A340 or A380. In fact, in my experience the nearest you can get to the sideslip technique on any big jet is the "wing-down" technique, which is normally done just before the flare/de-crab.
If you have knowledge of the Q400 or any other a/c in the video, please share it with us.
Quote:
"Always use the AFM technique!"
Yes, although there may be more than one.