Flew A380 J recently and had the dreaded droop. What I found interesting was that there was a number of passengers with the issue, and the flight attendants were well versed on it. They studiously went around helping people prop their legs up as if nothing was wrong. According to the attendant I spoke to it is now very common in the older A380s.
So whats going on here? If it is not just an isolated issue, how is it that Qantas can get away with selling a "Fully-flat bed" that actually isn't? Under Australian Consumer Law that's called a Misleading claim or representation....
Oh and the manual control fix suggested in this thread doesn't actually work. All it does is reduce the amount of extension in the leg zone, which in turn reduces the droop. If you are tall and need the full leg extension then it doesn't matter whether you use the lie flat button or the manual controls.... the droop is the same either way. Trust me, I spent a good long time fiddling around with this trying to actually get a decent nights sleep.
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Sky bed2 was clearly never fit for purpose based on basic engineering principles of strength and forces it is required to endure.