5 ms·

I wonder if that is due to Heathrow using Time-Based Separation software. https://www.airport-technology.com/news/optimised-runway-tool-improve-efficiency-heat

• hightowk 9y ago
  Technically, Time Based Separation helps only arrivals since it tries to negate the effects of headwinds on final approach, but it does add a lot of resilience to the airport to absorb delays that would normally ripple to departures.
  • dghughes 9y ago
    I'm pretty sure it doesn't I was reading about it and it mentioned even when the pilot can start the engines is calculated. It saves millions of liters of fuel just waiting a few minutes. There is a digital display facing the pilot showing him when he can depart. Even which size aircraft are allowed to depart. It's extremely well organized.