Posted: Monday, September 29, 2008
Space Exploration Technologies Corp. (SpaceX) announces that Flight 4 of the Falcon 1 launch vehicle has successfully launched and achieved Earth orbit. With this key milestone, Falcon 1 becomes the first privately developed liquid fuel rocket to orbit the Earth. Source: Space Exploration Technologies Corp.
"This is a great day for SpaceX and the culmination of an enormous amount of work by a great team," said Elon Musk, CEO and CTO of SpaceX. "The data shows we achieved a super precise orbit insertion - middle of the bull's-eye - and then went on to coast and restart the second stage, which was icing on the cake."
Falcon 1, designed from the ground up by SpaceX, lifted off at 4:15 p.m. (PDT) / 23:15 (UTC) from the Reagan Test Site (RTS) on Omelek Island at the U.S. Army Kwajalein Atoll (USAKA) in the Central Pacific, about 2,500 miles southwest of Hawaii.
Preliminary data indicates that Falcon 1 achieved an elliptical orbit of 500 km by 700 km, 9.2 degrees inclination - exactly as targeted.
Falcon 1 carried into orbit a payload mass simulator of approximately 165 kg (364 lbs), designed and built by SpaceX, specifically for this mission. Consisting of a hexagonal aluminum alloy chamber, 1.5 meters (5 feet) tall, the payload remains attached to the second stage as it orbits Earth.
This was the fourth launch of the Falcon 1 launch vehicle and second flight for the new SpaceX-developed Merlin 1C regeneratively-cooled engine. A "hold before liftoff" system was used to enhance reliability by permitting all launch systems to be verified as functioning nominally before launch was initiated. A single SpaceX-developed Kestrel engine powered the Falcon 1 second stage.
For more information about the Falcon family of vehicles, and to watch the archived video of the Falcon 1, Flight 4 launch, visit the SpaceX website at www.spacex.com.
SpaceX is developing a family of launch vehicles intended to increase the reliability and reduce the cost of both manned and unmanned space transportation, ultimately by a factor of ten. With its Falcon line of launch vehicles, powered by internally-developed Merlin engines, SpaceX offers light, medium and heavy lift capabilities to deliver spacecraft into any altitude and inclination, from low-Earth to geosynchronous orbit to planetary missions.
As a winner of the NASA Commercial Orbital Transportation Services competition (COTS), SpaceX is in a position to help fill the gap in American spaceflight to the International Space Station (ISS) when the Space Shuttle retires in 2010. Under the existing Agreement, SpaceX will conduct three flights of its Falcon 9 launch vehicle and Dragon spacecraft for NASA, culminating in Dragon berthing with the ISS. NASA also has an option to demonstrate crew services to the ISS using the Falcon 9 / Dragon system. SpaceX is the only COTS contender that has the capability to return pressurized cargo and crew to Earth. The first Falcon 9 will arrive at the SpaceX launch site (complex 40) at Cape Canaveral by the end of 2008 in preparation for its maiden flight in 2009.
Founded in 2002, the SpaceX team now numbers over 550, located primarily in Hawthorne, California, with four additional locations: SpaceX's Texas Test Facility in McGregor near Waco; offices in Washington DC; and launch facilities at Cape Canaveral, Florida, and the Marshall Islands in the Central Pacific.
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