North Korea's "Pukguksong-1" is a small two stage solid-fuel SLBM !

Norbert Brügge, Germany

Update:
29.04.2017

2017, April 15 -- New pictures of Pukguksong-1, seen on the parade.

 

  Nozzle bay + Skirt with not changed grid fins ! Fiber winding casing !

 

New measurements confirm the diameter of 1.10 m for the Pukguksong-1

 

2016, August 23 -- A successful launch from a submarine with ballistic trajectory and a range of 500 km. First photos were shown on loading the rocket in a submarine. The missile has now grid fins. Now is also clear, that the missile is a two-stage vehicle.

Pinned grid fins

 What is the diameter of the missile ?   Skirt with eight grid fins is new

 It is a two-stage missile !

The calculated diameter is 1.10 m

 


2016, July 09
-- North Korea has test-fired a further Pukguksong missile from a submarine but it failed in its initial flight, South Korea's military says.

2016, April 24 -- North Korea said a submarine-launched solid-fuel ballistic missile test it conducted had been a "great success". North Korea fired the missile from a submarine off its east coast on April 23 and it flew for about 30 km, a South Korean Defence Ministry official said. The North Korean State TV also showed what it claimed were underwater images of the missile being ejected from the underwater tube.
 


 

The KCNA report argued that the missile was launched from its maximum underwater depth, and that its "cold-start" ejection mechanism and high performance engine using solid fuel worked without a hitch, along with its flight controls and warhead release systems.

It is now clear that the Pukguksong with the R-27 technology never had to do.
I believe, the importance of the solid-fuel Pukguksong-1 naval missile is overestimated.
It is only a small rocket for tactical purposes and a down-scaled Pukguksong-2.


 Dimensions: 1.10 x 7.37 m, more are not 

     2015, November 28 --  North Korea tested its SLBM from submarine after announcing the successful launch of such a missile in April. The SLBM, however, failed to soar from the waters.

2015, April 22
-- After two previous test launch in Oct./Nov. 2014 and January 2015, North Korea has launched on April 22, 2015 for the first time their naval "Pukguksong" from an underwater barge. There were published the following photos and a video

 

Barge

"A closer look at photograph reveals Photoshop work at the back end of the missile. Rectangular graphic blocks appear to have been inserted. The detached flame could be a result of this editing. Thus, any conclusions about the propellants derived from the exhaust flame are ambiguous."

 

 

North Korea tests a new homemade solid fuel motor
(the first stage motor for the Pukguksong)

2016, March 24 -- Korea Central News Agency (KCNA) reported that North Korea had successfully conducted a high-powered, solid-fuel rocket engine test.
“The test was aimed to examine the structural safety of the rocket engine newly designed and manufactured by the Korean style and its thrust and estimate the working specifications of heat separation system and other system,” the English version of the KCNA article reads.

The following pictures were published:


               

The calculated diameter is 1.1 m



Burn time 57sec ?



       
     




"Cold-start" unit

High pressure gas generator