SpaceX completes important 'wet dress' rehearsal test for upcoming flight to space station

SpaceX completes important “wet dress” rehearsal test for upcoming flight to space station
Photo from the successful Falcon 9 launch readiness test on March 1, 2012 in preparation for the upcoming mission to the International Space Station. Credit: SpaceX

SpaceX successfully completed a key test of the Falcon 9 rocket that will fly the first commercial flight to the International Space Station. Called a ‘wet dress rehearsal,’ SpaceX brought the Falcon 9 "stack" with the Dragon capsule atop to the launch pad at Cape Canaveral on March 1, and loaded it with 76,000 gallons of highly refined kerosene and liquid oxygen fuel. Pre-liftoff operations were conducted as engineers went through a full count-down simulation, stopping at 5 seconds before ‘launch.’

SpaceX said the test was a success and was an important step on the road to the . “The test went well,” said SpaceX spokeswoman Kirstin Grantham. “Over the coming days, we will continue to review the data as we prepare for our upcoming mission.”

The launch of this historic flight will likely be April 20, or later, depending on the results of this and other tests.

SpaceX completes important “wet dress” rehearsal test for upcoming flight to space station
Dawn at Cape Canaveral during the wet dress rehearsal test. Credit: SpaceX and Elon Musk, via Twitter.

After the wet dress rehearsal, the fuel was drained, and the rocket was later rolled off the launch pad on March 2, and the SpaceX said Dragon will be taken off for additional testing.

Additionally, on March 2, SpaceX conducted another test, called a 9-engine test, firing the engines for a future 9 rocket. This took place near McGregor, Texas.

As the “real” launch date approaches for the current rocket, the Falcon 9 will again be brought to the Launchpad to fire the nine first-stage engines and practice late packing of cargo in the Dragon.

“These rehearsals allow SpaceX to test out both the vehicle and the ground systems before launch,” Grantham said.

SpaceX is working towards becoming the first commercial spacecraft to dock with the ISS under NASA’s commercial orbital transportation services (COTS) commercial crew development (CCDev) programs. Later this year, another COTS company, Orbital Sciences hopes to their Antares rocket and Cygnus capsule from Wallops Island, Virginia.


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Source: Universe Today
Citation: SpaceX completes important 'wet dress' rehearsal test for upcoming flight to space station (2012, March 5) retrieved 21 January 2020 from https://phys.org/news/2012-03-spacex-important-rehearsal-upcoming-flight.html
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