Flyfølging - Tracking

12 May 2014 Last updated at 00:49 GMT

Inmarsat offers free airline tracking

By Jonathan Amos Science correspondent, BBC News

Distress calls from ships are already relayed free of charge over Inmarsat's global network

UK satellite operator Inmarsat is to offer a free, basic tracking service to all the world's passenger airliners.

The offer follows the case of Malaysia Airlines flight MH370, which disappeared without trace on 8 March.
It was very brief electronic "pings" from Inmarsat equipment on the lost plane that prompted investigators to look for wreckage in the Indian Ocean.
Inmarsat says the free service it is offering would carry definitive positional information.
It would see a plane determine its location using GPS and then transmit that data - together with a heading, speed and altitude - over Inmarsat's global network of satellites every 15 minutes.
"Our equipment is on 90% of the world's wide-body jets already. This is an immediate fix for the industry at no cost to the industry," Inmarsat senior vice-president Chris McLaughlin told BBC News.
Cost is one of the reasons often cited for the reluctance of airlines to routinely use satellite tracking.
The London-based company announced its offer ahead of a conference on aircraft tracking being hosted by the International Civil Aviation Organization (ICAO) in Montreal, Canada, on Monday.

Both ICAO and the International Air Transport Association (IATA), the trade association for the world's airlines, are currently considering how best to respond to the loss of MH370.