Photos: How Heathrow Express does wi-fi

The wi-fi service is aimed at business travellers, to give them the ability to access emails and the internet during the short time they have travelling to and from Heathrow airport.

Brian Raven, managing director at Heathrow Express, said people may ask why it is necessary to have wi-fi connectivity on a 15 minute train journey but people use the Heathrow Express service because they are trying to save time.

Raven added: "Minutes of not working are lost minutes for the bankers, traders and other business professionals using this train service."

Photo credit: Heathrow Express