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North Korea's
long range missile "Hwasong-12" (HS-12)
Norbert
Brügge, Germany
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2022, April 25 -- Parade
HS-12 variant with the model of a hypersonic
glider, seen at the exhibition in September 2021
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2020, October 10 -- Parade
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Fourth launch (Jan.
30, 2022)
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Some unsharp pictures
of the main and steering engines
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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.
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Engines
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Thrust s.l.
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Isp s.l.
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Thrust vac
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Isp vac
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Propellant
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Burn time
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Flow rate
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Total Imp
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kN
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N*s/kg
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kN
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N*s/kg
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-
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t |
s
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t/s
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MN*s (vac)
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Pektusan A1
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393.9
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2638
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440.0
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2947
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UDMH/N204
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19.62
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120
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0.1493
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57.5
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LRE-4 (4)
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70.0
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2452
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78.4
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2746
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60 |
0.0286
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