Heathrow steep approach trials
Heathrow Airport has published a timeline for various trials planned for the next couple of years or so and intended "to inform the London Airspace Management Programme (LAMP) consultation".
It includes, starting in February 2015, a trial involving early morning arrivals which will "assess the impact of steeper approaches on arrivals (>3 degrees)".
What are the implications for ATC, given that obviously not all arrivals at that time of day will be suitably equipped ?