De-icing aircrafts is the constant messer-up of winter flight schedules. You can do it like they do it on Heathrow: spend 10 minutes drenching each wing, minutely combing through every square centimeter of the wing with the flashlight, causing an average delay of 1 hour for a rush-hour departure. Or you can do it the Finnish style: zap-zap-final-finishing-look and done. All in a matter of 2 minutes. It saves drenching the airport in toxic liquids, and somehow, saving time and substance does not seem to cause any more accidents. Because ice on wings can be deadly.
(Helsinki, Finland; February 2018)