"The FFG Upgrade has been one of the most complex undertakings in Australian defence history," said Chris Lloyd, Thales Australia's Naval Division Vice President.
"These four ships - HMAS Sydney, Melbourne, Darwin and Newcastle - are now highly capable warships thanks to the enhancements provided by this program."
The FFGs have been upgraded with improved anti-ship missile defence (the Evolved Sea Sparrow Missile), on-board electronic support systems, tactical data link capability, underwater warfare systems, training systems, ship service diesel generators and other systems.