Dubai’s Emirates Airline has signed a $9.1bn order with US aircraft manufacturer Boeing for 30 Boeing 777 planes.

The order will bring Emirates’ total Boeing 777 fleet to 101 aircraft and makes Emirates Airline the world’s largest operator of the 777 plane.

The carrier already has 71 Boeing 777 aircraft of which 53 are in service.

Sheikh Ahmed bin Saeed al-Maktoum, chairman and chief executive of Emirates signed the deal with Boeing at the Farnborough Airshow in the UK. Sheikh Mohammed Bin Rashid al-Maktoum, ruler of Dubai also attended.

In June Emirates announced that it had ordered 32 more Airbus A380 aircraft from the European manufacturer at a cost of $11.5bn.

This latest order is in addition to the 48 A380 aircraft Emirates already has on order. The airline is scheduled to take delivery of all of the A380 aircraft by 2013 (MEED 12:5:10).

The airline achieved a net profit of $964m for the financial year ending 31 March 2010, a 415 per cent increase on the net profit of $187m the airline recorded the previous year.

The carrier is also expanding its international network by adding new routes to Madrid, Tokyo, Amsterdam, Dakar, Prague and Baghdad in 2010.