The first version of the Falcon 9 launch vehicle, Falcon 9 v1.0, was developed in 2005–2010, and was launched for the first time in 2010. Falcon 9 v1.0 made five flights in 2010–2013, when it was retired.
The first version of the Falcon 9, Falcon 9 v1.0, was developed in 2005–2010, and flew five orbital missions in 2010–2013. The second version of the launch system—Falcon 9 v1.1— has been retired meanwhile.
On 8 September 2005, SpaceX announced the development of the Falcon 9 rocket, which has nine Merlin engines in its first stage. The design is an EELV-class vehicle, intended to compete with the Delta IV and the Atlas V, along with launchers of other nations as well. Both stages were designed for reuse. A similarly designed Falcon 5 rocket was also envisioned to fit between the Falcon 1 and Falcon 9, but development was dropped to concentrate on the Falcon 9.
In 2006, SpaceX stated that the Falcon 5 was a Falcon 9 with four engines removed. Since the launchers were being co-developed, work on the Falcon 9 was also applicable to the Falcon 5.
On 26 March 2006, the Falcon 1's maiden flight failed only seconds after leaving the pad due to a fuel line rupture. After a year, the second flight was launched on 22 March 2007 and it also ended in failure, due to a spin stabilization problem that automatically caused sensors to turn off the Kestrel 2nd-stage engine. The third Falcon 1 flight used a new regenerative cooling system for the first-stage Merlin engine, and the engine development was responsible for the almost 17-month flight delay. The new cooling system turned out to be the major reason the mission failed; because the first stage rammed into the second-stage engine bell at staging, due to excess thrust provided by residual propellant left over from the higher-propellant-capacity cooling system. On 28 September 2008, the Falcon 1 succeeded in reaching orbit on its fourth attempt, becoming the first privately funded, liquid-fueled rocket to do so. The Falcon 1 carried its first and only successful commercial payload into orbit on 13 July 2009, on its fifth launch. No launch attempts of the Falcon 1 have been made since 2009, and SpaceX is no longer taking launch reservations for the Falcon 1 in order to concentrate company resources on its larger Falcon 9 launch vehicle and other development projects.
The company purchased the McGregor, Texas, testing facilities of defunct Beal Aerospace, where it refitted the largest test stand at the facilities for Falcon 9 testing. On 22 November 2008, the stand tested the nine Merlin 1C engines of the Falcon 9, which deliver 770,000 pounds-force (3,400 kN) of thrust, well under the stand's capacity of 3,300,000 pounds-force (15,000 kN).
The first Falcon 9 vehicle was integrated at Cape Canaveral on 30 December 2008. NASA was planning for a flight to take place in January 2010; however the maiden flight was postponed several times and took place on 4 June 2010. At 2:50pm EST (14:50 ET), the Falcon 9 rocket successfully reached orbit.
Falcon 9 v1.1 was developed in 2010–2013, and made its maiden flight in September 2013. The Falcon 9 v1.1 is 60 percent heavier, with 60 percent more thrust than the v1.0 version of the Falcon 9. It includes realigned first-stage engines and 60 percent longer fuel tanks, making it more susceptible to bending during flight. The engines themselves have been upgraded to the more powerful Merlin 1D. These improvements increased the payload capability from 10,450 to 13,150 kilograms (23,040 to 28,990 lb).
SpaceX's first launch vehicle, the Falcon 1, was the first privately developed liquid fueled launch vehicle to be launched into orbit, and utilized SpaceX's Merlin and Kestrel engines for its first and second stages, respectively. It was launched five times from Omelek Island between 2006 and 2009 – the Falcon 1e and Falcon 5 variants were planned but never developed. The Falcon 9 v1.0, utilizing upgraded Merlin engines on both its stages, was developed as part of the United States Air Force's Evolved Expendable Launch Vehicle program and NASA's Commercial Orbital Transportation Services program. It was first launched from Cape Canaveral in 2010 and later replaced by the Falcon 9 v1.1 series in 2013, which was also launched from Vandenberg. The Falcon 9 Full Thrust and Falcon Heavy variants followed in 2015 and 2018; Falcon Heavy launches from Kennedy, and Falcon 9 additionally launches from Cape Canaveral and Vandenberg.
The second flight for the Falcon 9 vehicle was the COTS Demo Flight 1, the first launch under the NASA Commercial Orbital Transportation Services (COTS) contract designed to provide "seed money" for development of new boosters. The original NASA contract called for the COTS Demo Flight 1 to occur the second quarter of 2008; this flight was delayed several times, occurring at 15:43 GMT on 8 December 2010. The rocket successfully deployed an operational Dragon spacecraft at 15:53 GMT. Dragon orbited the Earth twice, and then made a controlled reentry burn that put it on target for a splashdown in the Pacific Ocean off the coast of Mexico. The first flight of the Falcon 9 v1.1 was September 29, 2013 from Vandenberg Air Force Base carrying several payloads including Canada's CASSIOPE technology demonstration satellite. The Falcon 9 v1.1 features stretched first and second stages, and a new octagonal arrangement of the 9 Merlin-1D engines on the first stage (replacing the square pattern of engines in v1.0). SpaceX notes that the Falcon 9 v1.1 is cheaper to manufacture, and longer than v1.0. It also has a larger payload capacity: 13,150 kilograms to low Earth orbit or 4,850 kg to geosynchronous transfer orbit.
Falcon 9 Air would have been an air-launched multi-stage launch vehicle under development by SpaceX in 2011–2012. Falcon 9 Air was to be carried to launch position and launch altitude by a Stratolaunch Systems carrier aircraft, the world's largest aircraft by wingspan. Payload to low Earth orbit was projected to be 6,100 kg (13,400 pounds).
In December 2011 Stratolaunch Systems announced that it would contract with SpaceX to develop an air-launched, multiple-stage launch vehicle, as a derivative of Falcon 9 technology, called the Falcon 9 Air, as part of the Stratolaunch project. As initially conceived with the SpaceX Falcon 9 Air (F9A) launch vehicle, Stratolaunch was to initially place satellites of up to 6,100 kg (13,400 pounds) into low Earth orbit; and once established as a reliable system, announced that it would explore a human-rated version. The system can take off from airfields with a minimum 3,700 m (12,100 feet) length, and the F9A carrier aircraft was proposed to travel to a launch point up to 2,200 km (1,200 nautical miles) away from the airfield and fly at a launch altitude of 9,100 m (30,000 feet).
Grasshopper began flight testing in September 2012 with a brief, three-second hop. It was followed by a second hop in November 2012, which consisted of an 8-second flight that took the testbed approximately 5.4 m (18 ft) off the ground. A third flight occurred in December 2012 of 29 seconds duration, with extended hover under rocket engine power, in which it ascended to an altitude of 40 m (130 ft) before descending under rocket power to come to a successful vertical landing. Grasshopper made its eighth and final test flight on October 7, 2013, flying to an altitude of 744 m (2,441 ft; 0.462 mi) before making its eighth successful vertical landing. The Grasshopper test vehicle is now retired.
Grasshopper was an experimental technology-demonstrator, suborbital reusable launch vehicle (RLV), a vertical takeoff, vertical landing (VTVL) rocket. The first VTVL flight test vehicle—Grasshopper, built on a Falcon 9 v1.0 first-stage tank—made a total of eight test flights between September 2012 and October 2013. All eight flights were from the McGregor, Texas, test facility.
On 27 November 2012 Stratolaunch announced that they would partner with Orbital Sciences Corporation—initially on an air-launched vehicle study contract—instead of SpaceX, effectively ending development of the Falcon 9 Air.
Propulsion for the rocket was planned to be provided by four Merlin 1D rocket engines, engines that were also to be used in the Falcon 9 v1.1 beginning in 2013, and also on the Falcon Heavy in 2014. Its first flight was notionally planned for 2016.
In May 2013, the Falcon 9 Air was eventually replaced in the development plan by the Orbital Sciences Pegasus II air-launched rocket.
SpaceX launched its first satellite to geostationary orbit in December 2013 (SES-8) and followed that a month later with its second, Thaicom 6, beginning to offer competition to the European and Russian launch providers that had been the major players in the commercial communications satellite market in recent years.
As initially announced, Stratolaunch Systems was a collaborative project that included subcontractors SpaceX, Scaled Composites, and Dynetics, with funding provided by Microsoft co-founder Paul G. Allen's Vulcan investment and project management company. Stratolaunch set out to build a mobile launch system with three primary components: a carrier aircraft (aircraft concept was designed by Burt Rutan, but the aircraft will be designed and built by Scaled Composites); a multi-stage launch vehicle to be developed and built by SpaceX; and a mating and integration system — allowing the carrier aircraft to safely carry and release the booster — to be built by Dynetics, a Huntsville, Alabama-based engineering company. The whole system will be the largest aircraft ever built; with the first test flight of the carrier aircraft originally expected in 2015 from Scaled Composites' facilities in Mojave, California, while the first test launch of the rocket was not expected before 2016 at the time of the project getting underway.
The "Full Thrust" version of Falcon 9 is an upgraded version of the Falcon 9 v1.1. It was used the first time on 22 December 2015 for the ORBCOMM-2 launch at Cape Canaveral SLC-40 launch pad.
Falcon Heavy (FH) is a super heavy lift space launch vehicle designed and manufactured by SpaceX. The Falcon Heavy is a variant of the Falcon 9 launch vehicle comprising three Falcon 9 first stages: a reinforced center core, and two additional side boosters. All three boosters are capable of being recovered and reused, although most flights utilize unrecoverable stripped-down center cores to increase performance. The side boosters assigned to Falcon Heavy's first flight were recovered from two prior Falcon 9 missions. SpaceX successfully launched the Falcon Heavy on February 6, 2018, delivering a payload comprising Musk's personal Tesla Roadster onto a trajectory reaching the orbit of Mars.
SpaceX had a rare coincidence of four rockets (all types of operational and under-development rockets) on all four of its orbital launch pads and two Dragon 2s (both types of Dragon 2s) on orbit on 10 January 2023. This was coupled before the end of the year with SpaceX igniting all of their rockets within 24 hours on 28-29 December 2023 (Falcon family rockets launching on their missions and both Starship stages doing static fires).
Moreover, SpaceX prices for Falcon 9 and Falcon Heavy are much lower than the projected prices for Ariane 6, projected to be available in 2024, respectively.
In the US launch industry, SpaceX prices its product offerings well below its competition. Nevertheless, "somewhat incongruously, its primary US competitor, United Launch Alliance (ULA), still maintained (in early 2013) that it requires a large annual subsidy, which neither SpaceX nor Orbital Sciences receives, in order to remain financially viable, with the reason cited as a lack of market opportunity, a stance which seems to be in conflict with the market itself."
The Starship launch vehicle is designed to supplant SpaceX's Falcon 9 and Falcon Heavy rockets, expand SpaceX's Starlink satellite constellation, and launch crews to both low Earth orbit and Mars. The vehicle is fundamental to SpaceX's ambition of colonizing Mars. SpaceX plans to use Starship vehicles as tankers, refueling other Starships to allow missions to geosynchronous orbit, the Moon, and Mars. A planned lunar lander variant of Starship was contracted by NASA to land astronauts on the Moon as part of the Artemis program for at least two Artemis lunar landings, starting with Artemis 3 in 2026.