Falcon 9 v1.1 is the second version of SpaceX's rocket-powered spaceflight launch system.It was developed in 2010-2013, and made its maiden launch in September 2013. It is both designed andmanufactured by SpaceX, headquartered in Hawthorne, California. It is currently the only active rocket of the Falcon rocket family. Falcon 9 v1.1 is a new vehicle design, with 60 percent more thrust and weight than the Falcon 9 v1.0 launch vehicle. It flew for the first time on a demonstration missionon the sixth overall launch of any Falcon 9 on September 29, 2013. Both stages of this two-stage-to-orbitvehicle use liquid oxygen and rocket-grade kerosene propellants. The Falcon 9 v1.1 can lift payloads of 13,150 kilograms to low Earth orbit, and 4,850 kilograms to geostationary transfer orbit, whichplaces the Falcon 9 design in the medium-lift range of launch systems.The Falcon 9 v1.1 and Dragoncapsule combination will be used, beginning in early 2014, to resupply the International Space Stationunder a contract with NASA. SpaceX is developing the Falcon 9 v1.1 to be able to carry humans and hasa contract with NASA for developing and testing several additional technologies to enable it to carry NASA astronauts. No contracts for NASA astronaut missions have yet been signed.