Bealzebub I wonder if you fly for one of the carriers which form the Airline Group? This group bought almost half of the part privatised NATS but they did it with borrowed money and then left NATS to pay the intrest on the loan. That is just one of many reasons why NATS is so underfunded. When an organisation is underfunded R&D is one of the first things to suffer. You are seeing the results.