“In the first test-launch, national defense scientists [of the Pyongyang's Academy of Defense Science] confirmed the navigational control and stability of the missile in the active section and also its technical specifications including the guiding maneuverability and the gliding flight characteristics of the detached hypersonic gliding warhead. The academy also ascertained the stability of the engine as well as of the missile fuel ampoule [sealed liquid fuel tank] that has been introduced for the first time.”
29 Sep 2021
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