Rome, January 18 - Italian defence and aerospace giant Finmeccanica said Monday it has signed a deal with Canada's civil aviation services provider Nav Canada to modernise the radar used in air traffic control systems at the country's 12 biggest airports. The work is scheduled for completion by 2027, a statement said. The project involving Toronto, Montreal, Ottawa, Vancouver and Calgary airports among others is "second only to the 4-Flight programme for the new domestic air traffic control system, currently under development," Finmeccanica added. The group has supplied air traffic control radar systems to over 150 countries worldwide, the statement concluded.