and was surprised to see an A380 of Qatar Airways heading in on 28L as opposed to all the other pre-15.00hrs traffic on 28R
LHR ATC often land A380s on the departure runway to avoid the effect it would otherwise have on the flow rate (because of wake separation). As well as Qatar, Emirates did so about 15 minutes previously.
By the way, it changed from 28L to 27L in 1987.
