North Korea's indigenous developmented solid-fuel rocket motor "PS180"

Norbert Brügge, Germany
 

2022, December 15 -- North Korea has released photos showing a solid-fuel rocket motor test, which appears to have taken place in a timely manner at a new test stand.

    



Analysts' assumptions that this is a motor for the Pukgugsong-5 (PS-5) are not wrong. However, it conflicts with their statement of a ~2.10 m diameter motor of the PS-5. because the motor tested has only a maximum diameter of 1.80 m. However, this diameter corresponds to my measurements of 1.80 m for the PS-5 (and PS-4 as well as PS-6), which I place in the North Korean new category of "silo-based missiles".

The motor has a maximum length of about 6 m and is equipped with corrective engines on the side, of which a sample can be seen. These are probably thrusters that are used short time after launch to adjust the rocket. The mentioned enormous thrust of the motor of 140 t can only refer to the maximum.