Hwasong-5
The Hwasong-5 (Korean: 화성 5호 Hanja: 火星 5號) is a North Korean tactical ballistic missile derived from the Soviet R-17 Elbrus missile. It is one of several missiles with the NATO reporting name Scud.
North Korea obtained its first R-17 missiles from Egypt in 1979 or 1980, in return for assistance during the Yom Kippur War. As relations with the Soviet Union were rather strained at the time, and Chinese assistance had proven unreliable, the North Koreans set about reverse engineering the Egyptian missiles. This process was accompanied by the construction of a missile-building infrastructure, of which the main elements were the 125 factory at Pyongyang, a research and development institute at Sanum-dong and the Musudan-ri Launch Facility.
The first missile prototypes were completed in 1984. Designated Hwasong-5, and known in the West as the "Scud Mod. A", they were identical to the R-17Es obtained from Egypt. The first test flights occurred in April 1984, but the first version saw only limited production, and no operational deployment, as its purpose was only to validate the production process.