Air Force's hypersonic test fails
A hypersonic aircraft launched by the Air Force Tuesday
spiraled out of control and was destroyed before it could reach its goal of
speeding to 4,600 mph, Pentagon officials said Wednesday.
The third test of the X-51A Waverider was launched
Tuesday off the California coast from a B-52 modified bomber aircraft and was
to fly for 300 seconds, reaching hypersonic speeds of Mach 6, but only flew for
16 seconds, according to the Air Force.
Officials said a problem with a tail fin caused the
missile-like vehicle to fly out of control before the main engine could be
ignited, leading researchers to destroy it early.
"A fault was identified with one of the cruiser
control fins. Once the X-51 separated from the rocket booster, approximately 15
seconds later, the cruiser was not able to maintain control due to the faulty
control fin and was lost," said a statement issued by the Air Force.
It's unclear what, if any, information was gleaned from
the test. According to the statement, "Program officials will now begin
the process of working through a rigorous evaluation to determine the exact
cause of all factors at play."
The Air Force plans to go public with details of the
failed test in a few weeks, after researchers are able to analyze the data from
the flight.
"It is unfortunate that a problem with this
subsystem caused a termination before we could light the Scramjet engine,"
said Charlie Brink, X-51A Program Manager for Air Force Research Laboratory.
"All our data showed we had created the right conditions for engine
ignition and we were very hopeful to meet our test objectives."
The Air Force had four X-51A Waveriders and has tested
three. Officials said they do not yet know when or if the fourth Waverider will
be tested.
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