Hwasong-17A -- Why the HS-17 was changed ?

 

Norbert Brügge, Germany
 

           
New painted HS-17A !!

2023, March 16 --Launch of the HS-17A with modified airframe

      


The HS-17A can be clearly distinguished from the HS-17 by its external features.

2022, November 08 -- North Korea has successful launched an intercontinental ballistic missile (ICBM) from the Sunan area near Pyongyang.

There is now photos of the launch. They shows a changed HS-17.The modifications affect both stages of the missile.. The first stage was shortened by about 1.5 m and the second stage was lengthened by 1.5 m. The missile is called HS-17A here. Why was changed the HS-17. One reason may be that the HS-17 is unsuitable
* as an ICBM and really only corresponds to the first stage of a future Unha-X (SLV) and the HS-17A is optimized as an really ICBM.

* The HS-17 first stage is oversized in length for four combustors. As the first stage of the Unha-X, it will have six combustors.