What could be the new South Korean solid-fuel
Norbert Brügge, Germany
2022, March 30 -- "The National Defense
Science Research Institute (ADD) succeeded in the first test launch to verify
the performance of a solid-state propulsion space launch developed with purely
Woori technology, with the presence of the Secretary of Defense and major
figures from each county at the National Defense Science Research Institute".
Analysis: This likely two-stage missile was launched
from a platform in the sea, documented in the released video. What is noticeable
was the speed that built up only slowly after the start, which, in relation
to the take-off weight of this small rocket, indicates a low thrust.
This leads me to ussume that the solid-fuel motor (KM) used from the KSLV-1.
This motor has a diameter of 1.0 m and a thrust of about 70 kN with a burning
time of 58 seconds. With this assumption, the new missile has a length of
about 6.2 m. The long fairing, which is supposed to guarantee aerodynamic
stability, is also striking. The small solid-fuel motor (AKM), which was used
for the KSR-III, would be considered as the second stage. In order to be suitable
as a launcher for satellites, however, this projectile requires an additional
booster as first stage (possibly
an extended Naro KM-motor).
KM dimension: 2.01 x 1.0 m
AKM dimension: ~0.70 x 0.53 m