The problem with GPS.

Next week I’m going to a meeting in my local Town Hall to learn what NATS are planning to do to the flightpaths around Glasgow Airport.  Big changes to save fuel and pollution is their headline.  (Will our ticket prices be reduced if less fuel is used?  No, I don’t think so either.) 

Anyway, NATS Holdings, formerly National Air Traffic Services and commonly referred to as NATS, are the business that boasts of being the UK's leading provider of air traffic control services.  Each year they handle 2.4 million flights and 250 million passengers in UK airspace.   In addition to providing services to 14 UK airports, and managing all upper airspace in the UK, they provide services around the world spanning Europe, the Middle East, Asia and North America. So a big important business.  And big on keeping our skies safe.

So why is NATS going full steam ahead for GPS based systems?   

Reflect for a momnet back to last June when more than 20 ships on the Black Sea noticed something odd about their satellite-based navigation systems. Instead of being at sea the systems said they were actaully on land.  Instead of their true positions well away from Russia’s south-west border, each ship’s GPS placed it inland at Gelendzhik, a small airport terminal!  

Now, if ships can be miles away from where they thought they were, imagine a plane being disorientated. 

Remember the problems the USA navy has been experiencing with apparently invincible ships hitting commercial ones?  Then there was the US Navy plane that crashed into the ocean southeast of Okinawa, marking at least the sixth apparent accident involving a Navy asset in East Asian waters in 12 months.  

GPS being interfered with? 

One does wonder if our reliance on the ColdWar satellite technology is an accident waiting to happen.