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2016, Feb. 09 -- South Korea's Navy
has captured debris of North Korea's Unha-3 rocket. Pictures of this debris
are from the nose cone, and have been
released by South Korea's Defence Ministry, which said the object was retrieved
from its territorial waters, off the island of Jeju.
2016, June 18 -- The second half of the nose cone was washed up on
Japanese beach.
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2016, Feb. 12 -- South Korea's Navy has captured
further debris: The stage adapter
with six push rockets on it, and a pitiful remnant of the
engine from the first stage.
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2016, Feb. 15 -- South Korean Navy discovers probably the
fuel tank of the Unha-3. The Navy said
that it identified the debris at 85 meters below the surface of the sea, some
100 kilometers southwest off Eocheong Island in the Yellow Sea. The debris
appeared to be a cylindrical object that was longer than two meters. The Navy
plans to retrieve the debris as soon as weather conditions improve.
2016, Feb. 18 -- The South Korean Navy has
retrieved what is presumed to be debris of a fuel container of the Unha-3.
"We picked up what appears to be debris of a fuel container
attached to a propellant of the first-stage of the rocket,"
said the Navy official. The official explained that
the debris would be sent to the state-run Agency for Defense Development for
analysis.
2016, April 28 --
It was confirmed that the Unha
rocket that North Korea fired on Feb. 07
was essentially the same type of rocket as the Unha-3 fired in Dec. 2012.
But a South Korean expert noted:
"We confirmed that anti-corrosive
fluoride components were added to the oxidizer (?),
something that we did not find in the 2012 debris”
2017, April -- Parts of the Unha-3 rocket that crashed into
the sea last year were made in Britain.
This discovery was made by United Nations scientists who carried out a forensic
study of the wreckage recovered from the Sea of Japan in February 2016. To
the discovered equipment also includes "100 bar pressure
transmitters"
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