Istanbul Naval Shipyards has installed Thordon COMPAC seawater lubricated propeller shaft bearings on the new Turkish Navy Milgem Frigates. The keel was laid for the first vessel, TCG Heybeliada (F-511), in July 2005. Launched in September 2008, the vessel is scheduled to commission in early 2011. The second vessel in class, TCG Büyükada (F-512), was laid in September 2008. It is scheduled to be launched in 2010 and commissioned in 2013. The Milgem class frigates are 324 ft in length with a displacement of 2000 tons.