The Hwasong-14 (Chosŏn'gŭl: 화성 14호; hancha: 火星 14号, meaning Mars-14), also known under alternative US designation codename KN-20, is a mobile intercontinental ballistic missile developed by North Korea. It had its maiden flight on 4 July 2017, which coincided with the United States' Independence Day. North Korea is the only known operator of this missile.
|Type||Intercontinental ballistic missile|
|Place of origin||North Korea|
|In service||First successful test on 4 July 2017|
|Used by||North Korea|
|Produced||2017 - present|
|Length||19.5 m (63 ft)|
|Diameter||1.7 m (5.5 ft)|
|Engine||Two-stage Liquid-fuel rocket
453kN, 46–48 tonne-force.
|6,700–10,000 km (4,200–6,200 mi)|
|Flight altitude||~3720 km|
The Hwasong-14 is likely a two-staged version of the Hwasong-12 first tested in May 2017. The second stage appears to have increased its range. The first stage engine appears very similar to the Hwasong-12. With a single liquid fuel engine, it has four Vernier thrusters for stability and guidance.
A detailed analysis by the Bulletin of the Atomic Scientists claims that the current variant of the Hwasong-14 may not even be capable of delivering a first-generation nuclear warhead to Anchorage, Alaska. But even if North Korea is now capable of fabricating a relatively light-weight, “miniaturized” atomic bomb that can survive the extreme reentry environments of long-range rocket delivery, it will, with certainty, not be able to deliver such an atomic bomb to the lower 48 states of the United States with the rocket tested on July 3 and July 28.
Michael Elleman of IISS and the Bulletin of the Atomic Scientists both claim that available evidence clearly indicates that the engine is based on the Soviet RD-250 (R-36 (missile)) family of engines, and has been modified to operate as the boosting force for the Hwasong-12 and -14. According to his theory an unknown number of these engines were probably acquired though illicit channels operating in Russia and/or Ukraine. North Korea’s need for an alternative to the failing Musudan and the recent appearance of the RD-250 engine along with other evidence, suggests the transfers occurred in 2015-2017. Ukraine rejected this theory claiming it was "most likely provoked by Russian secret services to cover their own crimes.” Other US experts have questioned whether the evidence for Elleman's theory is strong enough to back up his claims. Engine maker Yuzhnoye Design Office denied that the engines were supplied to North Korea by Ukraine.
In August 2017 the State Space Agency of Ukraine claimed that the rocket engine used during 28 July 2017 North Korea's missile test was RD-250 made at a Ukrainian factory, but solely for use in Tsyklon space rockets supplied to Russia. The space agency chief said that according to Ukrainian information, “Russia today has between 7 and 20” of the Tsyklon rockets...They have these engines, they have the documentation. They can supply these engines from the finished rockets to whoever they want.” The agency also claimed that a total of 223 Tsyklon-2 and Tsyklon-3 rockets were supplied to Russia. Furthermore, he stated that North Korea cannot produce the fuel for the RD-250 (N2O4 and UDMH), and that it must have been produced either in China or in Russia.
Chinese Transporter ErectorEdit
Like the Hwasong-12, the Hwasong-14 appears to be transported on an off-road capable Wanshan Special Vehicle WS51200 8 axle transporter erector vehicle. This capability is particularly well-suited for North Korea, which has only around 700 km of paved road throughout the country. The vehicle uses a US-designed Cummins KTTA19 C700 diesel engine. The vehicle was imported from China and declared for civilian use by the North Korean foreign ministry. Mike Turner, chairman of the House Armed Services subcommittee on strategic forces stated that "the prospect of Chinese support for this program, which ‘would require approval from the highest levels of China’s government and from the People’s Liberation Army,’ means that China is enabling North Korea to deploy ICBMs that could be tipped with nuclear warheads aimed at the United States. Such cooperation therefore poses a direct threat to the security of the American people." Although it is hard to believe that the Chinese were not aware that North Korea would use the vehicle chassis for its illicit missile program, available evidence suggests that Pyongyang did indeed add the erectors at facilities known to assemble missile transporter-erector-launchers (TELs).
But the missile is launched from a detachable platform on a concrete pad. This could have several operational ramifications. It may increase the time required to launch the Hwasong-12, and limit the number of launch locations to pre-sited and pre-constructed launch pads.
List of Hwasong-14 testsEdit
|Attempt||Date||Location||Pre-launch announcement / detection||Outcome||Additional Notes|
|1||4 July 2017 ||near Panghyon Airport, 39.872126 N 125.269258 E||None||Success||ICBM variant of Hwasong-12 with second stage added and smaller reentry vehicle was fired on a lofted trajectory with apogee of 2,802 km (1,741 mi), landing 933 km (580 mi) away in the Sea of Japan (East Sea of Korea).|
|2||28 July 2017 ||near Mupyong-ni, Chagang Province||Detected by US intelligence since 20 July||Success||Fired on a lofted trajectory with apogee of 3,724.9 km (2,314.5 mi), landing 998 km (620 mi) away in the Sea of Japan (East Sea of Korea) near Hokkaido, with a total flight time of 47 minutes, 12 seconds.|
First test flightEdit
The first publicly announced flight test was on the 4th July 2017,[i] to coincide with the US Independence Day celebrations. This flight had a claimed range of 933 kilometres (580 mi) eastwards into the Sea of Japan (East Sea of Korea) and reached an altitude of 2,802 kilometres (9,193,000 ft) during a 39-minute flight.
This range was deliberately shortened, to avoid encroaching on other nations' territory, by 'lofting' the missile: firing it on a trajectory that was inefficiently high, rather than optimised for range. This allows the missile's performance to be tested and demonstrated, without requiring a huge test range.
A prediction for the possible range, following an optimum trajectory, has been given at 6,700 kilometres (4,200 mi) or as much as 10,400 kilometres (6,500 mi) not taking into account the Earth’s rotation. If true, then this brings the U.S. states of Alaska and Hawaii within the missile's range.
Second test flightEdit
Preparations for a second test flight were detected by US intelligence as early as 20 July. On 28 July, the missile was fired at 11:41 p.m local time, the first time which a night time launch was carried out. The missile was fired at a lofted trajectory with apogee of 3,700 km (2,300 mi), landing 998 km (620 mi) away with a total flight time of approximately 47 minutes. Based on the data from the test flight, if the missile were fired at the optimal efficient trajectory, it is predicted that the maximum effective range would exceed 10,000 km (6,200 mi). If factoring in the rotation of the Earth, which may provide a range boost when travelling eastward, the Hwasong-14’s coverage area would include the US West Coast, Chicago, and possibly even New York, but only with a substantially reduced payload.
Kim Jong-un's order for the first test flight
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As was noted at the time, the Hwasong-14 was launched on a very high angle “lofted” trajectory to avoid overflying Japan, ...
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