Dunlops said: "as they would carry plenty of fuel on a short leg such as AMS-BRS"
As a long-standing Heathrow controller that remark had me falling about, although NOT in respect of KLM. Several airlines much closer to home have run short of fuel on legs shorter than AMS-BRS......... but I think this has all been discussed at length elsewhere.
Silvertop: I'm interested in the "howling fog" phenomena Never experienced anything like that either in my early days when I held a Met Observers Certificate or all my time as an ATCO. Used to have "howling sand" in Africa though with zero vis!