WASHINGTON – Space Exploration Technologies
(SpaceX) aborted the Falcon 9 medium-class rocket's first static fire test
March 9 just as the vehicle's nine main-stage engines were about to ignite for
a planned 3.5-second burn.
"Today SpaceX
performed our first Static Fire for the Falcon 9 launch vehicle. We counted
down to . . . T-2 seconds and aborted on Spin Start," the Hawthorne,
Calif.-based company said in a statement. "Given that this was our first
abort event on this pad, we decided to scrub for the day to get a good look at
the rocket before trying again. Everything looks great at first glance."
"We'll look to do the next static fire
attempt in three or four days," SpaceX said.
SpaceX attempted the crucial prelaunch
test six days after completing what it described as a flawless
countdown-and-propellant-loading exercise known in rocketry circles as a wet
dress rehearsal.
An unspecified problem with the rocket's spin
start system prompted the abort, according to the statement. While the engines
never ignited, video of the test shows a ball of flame followed by a cloud of
black smoke erupting from the base of the 15-story-tall rocket.
"As part of the abort, we close the
pre-valves to isolate the engines from the propellant tank and purge the
residual propellants. The brief flames seen on the video are burn off of [liquid
oxygen] and kerosene on the pad. The engines did not ignite and there was no
engine fire," SpaceX said in the statement. "We detanked and safed
the vehicle and launch pad. Preliminary review shows all other systems required
to reach full ignition were within specification. All other pad systems worked
nominally."
SpaceX's first Falcon 9 has been standing
erect at its Cape Canaveral, Fla., launch site since late February undergoing
preparations for its maiden flight, a demonstration launch ordered in 2005 by
an unnamed U.S. government customer.
During that flight the Falcon 9 will carry a
prototype of SpaceX's Dragon space station cargo capsule into space. However,
the mission will not count as one of the three demonstrations the company has
agreed to conduct for NASA under the U.S. space agency's Commercial Orbital
Transportation Services program.
NASA is counting on the Falcon
9 and Dragon to deliver at least 20 tons of cargo to the international
space station over the next five years under a $1.6 billion contract awarded in
late 2008.
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