SpaceShipTwo, a rocket plane that was meant to carry well-heeled
tourists on short if expensive rides to space, crashed in the Mojave
Desert on Friday during a test flight, killing one of the two pilots.
The
pilots, who have not yet been identified, were flying the plane for
Virgin Galactic, the space tourism company created by the entrepreneur
Richard Branson, and Scaled Composites, the company that designed and
built the plane.
One pilot was able to parachute from the plane
and was taken to a nearby hospital with "moderate to major injuries,"
said Ray Pruitt, the public information officer for the Kern County
Sheriff's Office in California.
The test was the first time SpaceShipTwo had flown using a new, plastic-based rocket fuel.
It
was the second major accident in a week for the commercial space
industry, which has been widely promoted in recent years as an
alternative to costly government programs. On Tuesday, an unmanned
rocket launched by Orbital Sciences Corp. of Dulles, Virginia, which was
carrying cargo to the International Space Station, exploded 15 seconds
after launching.
SpaceShipTwo and Orbital's rocket are very
different in design and purpose, but both are part of an effort to bring
private investment into the space business, until now largely the realm
of government agencies like NASA and the military.
Virgin
Galactic, which hoped to begin tourist flights next spring, already has
more than 700 reservations, initially sold for $200,000 a seat before
rising to $250,000 last year.
The list of would-be astronauts includes celebrities like Leonardo DiCaprio, Justin Bieber and Angelina Jolie.
Experts said it was too soon to tell when the effort would resume.
"Virgin
was out ahead of everyone else for space tourism," said Michael Blades,
the aerospace and defense industry senior analyst at Frost &
Sullivan, a market research and consulting firm. "It will still happen,
but it has been pushed way to the right.
"It is just like any
kind of other new technology, especially when it comes to flight," he
continued. "You have your tests and you have your failures."
Friday's
accident took place tens of thousands of feet above the desert. As
planned, SpaceShipTwo was carried aloft by a larger plane,
WhiteKnightTwo, then dropped at about 50,000 feet. In a tourist flight,
SpaceShipTwo's rocket engines would take it to the 62-mile-high boundary
defined as the edge of space.
After the smaller plane was
released, its motor ignited. The accident appeared to happen 60 to 90
seconds later, said Stuart Witt, the chief executive of Mojave Air and
Space Port, where WhiteKnightTwo took off at 9:18 a.m. Pacific time.
"I knew something was wrong," he said. "I didn't know what. It wasn't obvious at first."
A radio call reported an anomaly. "And we waited," he said.
The
sheriff's office received a call after 10 a.m. that an aircraft had
gone down about 20 miles northeast of the city of Mojave. "We have
located a debris field," Pruitt said.
WhiteKnightTwo landed safely.
Via Twitter, Branson said, "I'm flying to Mojave immediately to be with the team."
Virgin
Galactic grew out of the success of the Ansari X Prize contest in 2004,
for the first privately built and financed craft that could rise above
the 62-mile boundary of space. Scaled Composites won the $10 million
prize with a smaller version of SpaceShipTwo, an effort financed by Paul
Allen, the co-founder of Microsoft.
Immediately after the X Prize,
Branson announced his plans for a spaceship that would carry two pilots
and six passengers on suborbital flights - in which the plane does not
go into orbit but offers a few minutes of weightlessness at the top of
an arcing trajectory.
Over the years, Branson has repeatedly
said he hoped commercial flights would begin soon. This is the second
time tragedy has struck the spaceport in connection with Scaled
Composites; in July 2007, a rocket system test went awry, killing three
people.
Most recently, he said that with the resumption of
powered test flights, he hoped the first commercial flights would take
off next spring. He and his family plan to be the passengers on the
first operational flight.
Although SpaceShipTwo had flown 54
previous test flights, all but three were unpowered tests in which it
glided to the ground. This was the fourth time its motor was ignited.
In
May, Virgin Galactic announced it was switching to the plastic-based
fuel from the rubber-based one it had used. Friday's flight was the
first powered by the new motor.
The previous version was
problematic, causing strong vibrations in the spacecraft. In an article
published last month in Popular Mechanics, Brian Binnie, a former test
pilot for Scaled, said, "We had start-up instabilities and we had
end-of-burn instabilities."
While troubleshooting the problem, "we
did everything but break down and pray to God to show us the light of
day," said Binnie, who has now moved to XCOR Aerospace, another company
at Mojave that is building a suborbital space plane for tourists.
Marco
Caceres, director of space studies at the Teal Group, a consulting
firm, said that "in an age where it is very expensive to fly these
vehicles, the pressure is to do the minimal amount of test flying.
"So
that may be something we have to take a look at," he continued.
"Everyone seems to be in need of more money to conduct more flights, so
the pressure is to start operational flight too soon. Maybe we are being
unreasonable here."
Patricia Hynes, director of the New Mexico
Space Grant Consortium, who organizes an annual symposium for people in
the commercial space industry, said the accident "helps people
understand why it's never been done before."
"This is a tough business," she said.
Hynes has bought a Virgin Galactic ticket, and the news did not change her intention to fly. "No, absolutely not," she said.
A second SpaceShipTwo plane is currently under construction.
© 2014, The New York Times News Service
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