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China-Japan-Koreas
North Korea fires long-range-ballistic missile
2017-07-29
[Al Jazeera] North Korea has launched a ballistic missile, according to multiple military reports, just weeks after the country tested an intercontinental rocket capable of hitting parts of the US.

The US defence department says the launch appears to be that of an intercontinental ballistic missile (ICBM).

South Korea's military and Shinzo Abe, Japan's prime minister, confirmed the report of Friday's launch. In Seoul and Tokyo, the governments convened meetings of their national security councils.

"There is a possibility that it landed within our EEZ [exclusive economic zone]," Abe said in Tokyo.

"We will be analysing it immediately and do our best for the safety of our people."

Captain Jeff Davis, a Pentagon spokesperson, said the launch had been expected and took place at about 14:45 GMT from Mupyong-ni, an arms plant in northern North Korea.

He said the launch did not pose a threat to North America.

South Korea's Yonhap news agency, citing the country's military joint chiefs of staff, said the missile was launched from North Korea's Jagang province, and landed in the East Sea.
Posted by:Fred

#5  Me, me, I'm the target, meme Meme!
Posted by:    2017-07-29 22:46  

#4   and I see your missile in the pot and raise it by..
Posted by: 3dc   2017-07-29 13:54  

#3  Some add the overhanging nozzles to the length, some don't...

I do.
Posted by: Frank G   2017-07-29 12:26  

#2  from NASAspaceflight.com chat:

Both the armscontrolwonks and 38 North are slow with a comprehensive comparison of all the missiles after the concert. Much easier to do comparisons between missiles with data from the same analyst. Norbert Brügge did a lot of revisions since the image dump, here is some of what he thinks:


The HS-12 first (and only stage) has the same overall length as the HS-14 first stage.

The HS-12 first stage are ~1.5m diameter with common bulkhead, HS-14 first stage is ~1.70m diameter and no common bulkhead.
HS-10 is also ~1.5m diameter with common bulkhead but much shorter in length and with a submerged engine.

HS-14 second stage is of similar dimensions as the HS-13 3rd stage. HS-13 2013 parade version that is.
HS-13 first stage is larger in diameter ~1.9m.


Same engine on HS-12 and HS-14, different from the submerged engine on HS-10. Verniers may be the same.
Very little information about the HS-13 engine(s). From images the first stage has 2 main combustors and 2 verniers.

--

Seems to me like NK moved away from R-27 inspired submerged engines and redid their designs with their new engine. A slightly longer missile is not too much of a hassle on land. (Btw: that seems to be a major reason for different HS-12 and HS-14 missile length between analysts. Some add the overhanging nozzles to the length, some don't...)
Their submarine launched missiles moved to solid fuel instead.
Posted by: 3dc   2017-07-29 12:09  

#1  It appears that the Iranian Safir upper stage uses two engines, probably R-27 derived, whereas the NKOR Simorgh upper stage has four such engines.
Posted by: 3dc   2017-07-29 00:27  

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