[3] In 1986, South Korea succeeded in test-launching a missile with a current payload of 480 kg (1,060 lb) and a range of 180 km (110 mi).
The Hyunmoo-1 missile, which is 12 m (39 ft) long and weighing 5 t (11,000 lb), is propelled by a two-stage solid rocket motor.
It features an independent inertial guidance and control system which means it can reach any target in any weather conditions without further commands after launch.
The US only granted export approval after South Korea provided technical information on its Hyunmoo system, and agreed to not develop rockets with ranges of more than 180 km (110 mi).
South Korea was permitted to produce a limited number of Hyunmoo missiles under US inspection until production ended.
The Hyunmoo-2A was the first of South Korea's attempts to develop an newer indigenous ballistic missile with an increased range, over Hyunmoo-1.
[4] If launched from the central region of South Korea, all of North Korean territory is under a 550-kilometer striking range.
[9] The warhead section features maneuvering fins (similar to those on Pershing II), which suggests a maneuverable reentry vehicle or some type of terminal guidance for increased accuracy.
[21][22] In 2006, the South Korean defense ministry released a statement that it had been testing several cruise missiles under the series of Hyunmoo-3 which were similar to the American Tomahawk or the Russian Kalibr.
[31] It is thought to be powered by a two-stage solid-fuel engine, with an estimated length of about 16 m and a diameter of 1.6 m.[32] It uses a nine-axle K901 Transporter Erector Launcher vehicle produced in Kia Motors.
[33] The warhead can destroy structures deeper than 100 meters below the surface, missile speed is close to Mach 10 in the descending phase.
[43][44] South Korean President Moon Jae-in was shown to be observing the missile launch at the time.
The Hyunmoo missile variant would carry a warhead weighing up to 1,000 kg and would be used to target key North Korean sites both above and underground.
[56] On 5 October 2022, a Hyunmoo-2C missile fired in response to a North Korean ICBM test malfunctioned and crashed into a golf course in Gangneung.