Hire them out as mobile de -icers . 1 flight at Heathrow and 1 at Gatwick . 2 aircraft hover 70 feet above the parked aircraft to de ice them , two hover up and down the runways and taxiways clearing snow. Ditto the motorway and rail network . Would it work ? PS Any senior RAF people .This was my idea , not yours , so if there is an MBE handed out for this brilliant idea i will gratefully accept it .