The Invincible-class carrier was built by the Westchester Navy. After the Tian Xia Navy absorbed that organization, they were reflagged. Unlike most carriers, they are more designed to support the surface group they operate with, rather than the reverse, where the surface group supports the carrier. A unique attribute of them is the reverse angled deck. This feature allows a full length landing deck while allowing a shortened deck length compared to a normally configured carrier. This feature does, however, prohibit take off evolutions from happening at the same time as landing operations.