• The Project Delta design is a smaller derivative of the La Fayette class st
Six Formidable Class multi-mission frigates are being built for the Singapore Navy. The first of class, RSS Formidable, was launched on 7 January 2004 at the Lorient dockyard in Brittany, France.

The Republic of Singapore Ministry of Defence (MINDEF) awarded the contract in March 2002 to DCN (now DCNS) in France for the design and construction of the frigates.