Enough of BAA's faffing around - turn to the military experts. At an airfield, the answer is all around you ... jets !Option 1. From Ivan the Russian Soldier, who knows a thing or two about snow - and about blindingly obvious solutions. In this case, a jet engine on a tank chassis. Симпљс !
Option 2. From Bruce the Australian Aviator, who knows how to make a crème brulée from 100 feet above ground. In this case using the famous (and strictly forbidden) 'dump-n-burn' technique, giving a quick touch on the afterburners of an F-111 having *ahem* evacuated a fuel tank first ... no worries, mate !
Get with the programme, Heathrow !