Train operator GNER is rolling out on-board Wi-Fi to more of its train fleet following a successful three-month trial.

Working with Swedish wireless technology firm Icomera, GNER will build on current trials in three existing trains by placing Wi-Fi on 10 new electric trains by the end of this year.

Using satellite technology, passengers travelling between London King's Cross, the east midlands, Yorkshire, the north east and Scotland will be able to access the web and check emails during their journey.

GNER's Mobile Office Wi-Fi service is currently free to first class passengers on two high-speed trains and an electric train.

First class passengers will also receive the service for free on the new trains, as GNER looks to differentiate itself from airlines and other train operators.

But passengers travelling in standard carriages will have to pay £4.95 per hour.

"We are confident that the new service will encourage more people to take the train instead of driving or flying," said Christopher Garnett, chief executive at GNER.

Virgin Trains announced a similar deal with Wi-Fi provider Broadreach earlier this year, putting wireless on its West Coast and Cross Country franchise trains.

Jeremy Acklam, IT director at Virgin Trains, told vnunet.com that it is testing the wireless technology for stock re-ordering, timetable updates and to provide corporate information to employees.

"We believe that Wi-Fi is the killer app for customers in the UK and has potential for revenue growth," he said.

But both operators face competition from airlines as Boeing looks to roll out its Connexion internet service to Lufthansa and Scandinavian Airlines later this year.