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TIME: Almanac 1990s
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1994-03-25
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<text id=89TT2238>
<title>
Aug. 28, 1989: American Notes:Navy
</title>
<history>
TIME--The Weekly Newsmagazine--1989
Aug. 28, 1989 World War II:50th Anniversary
</history>
<article>
<source>Time Magazine</source>
<hdr>
NATION, Page 15
American Notes
NAVY
Back to the Drawing Board
</hdr><body>
<p> Tipped with twelve nuclear warheads and carrying a price
tag of $26.5 million each, the Trident II submarine-launched
missile is supposed to give the U.S. the ability to destroy
Soviet ICBMs still nestled in their silos. But hopes for the
Trident's scheduled deployment in 1990 were set back last week
when the weapon exploded during a test firing on the open sea.
It was the second failure in three attempts; embarrassed Navy
officials admitted that the probable reason for the misfires was
a design flaw that should have been corrected on the drawing
board.
</p>
<p> Because the new Trident is about 10 ft. longer and almost
twice as heavy as the model it replaces, the missile leaves a
more turbulent, gaseous wake as it rises to the ocean surface.
But engineers miscalculated the amount of water that would rush
into the vacuum under the missile's rocket nozzles.
Investigators say these "water jets" interfere with Trident's
trajectory and have led to the two mishaps. Their conclusion:
the missile must be redesigned. Correcting Trident II could cost
up to $20 million and delay its introduction for nearly a year.
</p>
</body></article>
</text>