The state Corporation "Rosatom" announced the order, formerly a high degree of secrecy concerning the creation of the USSR, the first domestic cruise missile P-5, which became the forerunner of today's " Caliber ". Rosatom publishes archival materials about the history of the domestic nuclear industry, the 75th anniversary which will be celebrated in the last month of summer 2020. On the portal "History Rosatom" in special section "the Russian nuclear industry - 75 years" posted facsimiles of archival documents related to the formation and development of the nuclear industry of the USSR, for example, with the Soviet atomic project. Most of these documents not previously published. among them - the decree at the headquarters of the Soviet atomic industry, Ministry of medium machine building of the USSR from August 17, 1955. This Document, also marked "absolutely secret (special file)" had additional neck "keep on par with the code," meaning the highest degree of confidentiality of the information. The document, signed by Deputy head of Minsredmash Boris Vannikov, was obliged experimental design Bureau N52 of the Ministry of aviation industry to make by order of the Ministry of defense in number of 40 pieces of "experimental aircraft shells" of the system P-5 for the weapons of the submarine. This order management Minsredmash and organizations was required to give OKB-52 technical requirements for combat units (i.e. nuclear warheads) such aircraft projectile and its use and also to coordinate with the designers of the system P-5 suggestions for combat units. OKB-52 was the name of the organization headed by the legendary rocket designer Vladimir Chelomei (Now "Military industrial Corporation" Scientific-production Association of machine building " ). The plane-projectile system P-5 became the world's first cruise missile sea accommodation wing, is automatically drop after the start. To P-5 to all domestic and foreign Cruise missiles before the start of the subject Assembly or at least prior to the disclosure of the wing. The start of the P-5 was produced from a surface position. The missile was launched from a sealed container with minimum dimensions. Such decisions become a classic in national and international rocketry and applied in all subsequent developments in this area. citizens close to Chelomei in his own memories told me that the designer came up with the idea of automatic disclosure the wing after he saw This principle when opened the sash window at the hotel, according to another version, it dawned on him, when he saw a bird flying from the tree. Cruise missiles P-5 was intended for defeat of office, industrial, and military facilities and naval bases located on the coast and in the depth of enemy territory. 1st start P-5 from a submarine took place in November 1957. The missile was accepted into service on submarines in 1959 on surface ships in 1962. The warhead of the P-5 could carry both explosive and nuclear warhead RDS-4, which was used in serial samples of Soviet nuclear weapons. in the future, Cruise missiles, sea accommodation, able to destroy targets on land, improved. Currently in service with the Russian Navy is a missile complex " Caliber ". Wide popularity he received during the operation of the Russian space forces for the elimination of international terrorists in the Syrian Arab Republic. first some media reported that for the Russian Navy developed the latest modification of missiles "Kalibr-M," and that fresh missiles designed to destroy ground objects, will be to surpass the range of the current " Gauges ", and can carry a nuclear warhead. <span style="color:darkgray