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

Norbert Brügge, Germany

 

2022, April 25 -- Parade

HS-12 variant with the model of a hypersonic glider, seen at the exhibition in September 2021
 

 2020, October 10 -- Parade

 


 

 


Fourth launch (Jan. 30, 2022)
 

            
Third launch (Sept. 15, 2017)

  
Second launch Aug. 29, 2017

  
An earlier launch (April 28, 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.
The takeoff weight of the HS-12 is estimated at approximately 22 t.
 



 

 

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

-

t

s

t/s

MN*s (vac)

Pektusan A1

393.9

2638

440.0

2947

UDMH/N204

19.62

120

0.1493

57.5

LRE-4 (4)

70.0

2452

78.4

2746

60

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 !