Ulyanovsk (Cyrillic: Улья́новск) was the first of a class of never-completed Soviet nuclear-powered supercarriers which for the first time would have offered true blue water aviation capability for the Soviet Navy. This was based upon the 1975 Project 1153 OREL (which never went beyond blueprints). The initial commissioned name was to be Kremlin, but was later given the name Ulyanovsk after the Soviet town of Ulyanovsk, which was originally named Simbirsk but later renamed after Vladimir Lenin's original name because he was born there.