North Korea's newest long range missile "Hwasong-12" (HS-12)

Norbert Brügge, Germany

Update: 16.09.2017
 

         
Current launch (Sept. 15, 2017)

  
Launch Aug. 29, 2017

  
An earlier test launch (Spring 2017 ?)

 
2
017, May 14  -- North Korea has successfully tested its new HS-12 in flight.
 

 

 

  Some unsharp pictures of the main and steering engines

 

Last analysis:
The new HS-12 missile is not more a mystery. It is a single-stage rocket with a diameter of about 1.50 m. The cablel duct is on the entire length not interrupted and there is no indication of a stages separation plane. The engine bay suggested from the beginning that the missile uses not a SLBM-like engine. The cable duct ends higher up and it is to see a slightly conical skirt with weld seam, which means that an engine is used not inside the tank as for HS-10 or HS-13. In addition, the bottom in the skirt is plane. The assumption, the missile uses the recently tested engine (one combustor of RD-250) is true. The added steering engines comes from the HS-13 (R-27 origin). The takeoff thrust is approximately 464 kN. The fuel would be consumed after 120 seconds. The WH is equipped with a telemetry antenna and obviously also with a extra PBV.
 



 

 

Engines

Thrust s.l.

Isp s.l.

Thrust vac

Isp vac

Propellant

Burn time

Flow rate

Total Imp

kN

N*s/kg

kN

N*s/kg

-

tons

s

t/s

MN*s (vac)

 RD-250

394.1

2644

440.6

2956

UDMH/N204

21.32

120

0.1491

62.3

Verniers (4)

70.0

2452

78.4

2746

120

0.0286

  


The new designed HS-12 missile were presented first time at the parade on 15 April 2017

New HS-12 on HS-10 TEL !