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Falcon 1 was a small-lift launch vehicle that was operated from 2006 to 2009 by SpaceX, an American aerospace manufacturer. On 28 September 2008, Falcon 1 became the first privately-developed fully liquid-fueled launch vehicle to go into orbit around the Earth.: 203
|Function||Orbital launch vehicle|
|Country of origin||United States|
|Project cost||US$90 million|
|Cost per launch||US$7 million|
|Height||21 m (69 ft)|
|Diameter||1.7 m (5.6 ft)|
|Mass||28 t (62,000 lb)|
|Payload to LEO|
|Orbital inclination||9.0 - 9.35°|
|Payload to SSO|
|Mass||200 kg (440 lb)|
|Launch sites||Omelek Island|
|First flight||24 March 2006 |
|Last flight||14 July 2009 |
|Powered by||1 Merlin 1A (first 2 flights)|
1 Merlin 1C (final 3 flights)
|Maximum thrust||450 kN (100,000 lbf)|
|Specific impulse||255 s (2.50 km/s) (sea level)|
|Burn time||169 s|
|Powered by||1 Kestrel|
|Maximum thrust||31 kN (7,000 lbf)|
|Specific impulse||327 s (3.21 km/s)|
|Burn time||378 s|
|Part of a series on|
|Contracts and programs|
The two-stage-to-orbit rocket used LOX/RP-1 for both stages, the first powered by a single Merlin engine and the second powered by a single Kestrel engine. It was designed by SpaceX from the ground up.
The vehicle was launched a total of five times. After three failed launch attempts, Falcon 1 achieved orbit on its fourth attempt in September 2008 with a mass simulator as a payload. On 14 July 2009, Falcon 1 made its second successful flight, delivering the Malaysian RazakSAT satellite to orbit on SpaceX's first commercial launch (fifth and final launch overall). Following this flight, the Falcon 1 was retired and succeeded by Falcon 9.
SpaceX had announced an enhanced variant, the Falcon 1e, but development was stopped in favor of Falcon 9.