In and away in pretty quick time Boaty....... It's not that big an issue as long as they keep the runway clear, the charter pilots might be wimps and not want to land in the white stuff though
Since the commencement of the bun fight in Afghanistan the mod have had various charter companies doing this run, tristars can be fitted with suppression systems, not that critical here but they are all knackered, 10 years over service some of them. Voyager the passenger/refuelling replacement for the Tristar and VC10 is very very delayed so we have a wee Portugese company called Hi Fly doing the job just now...they are not the best!!