With more than 5 million pounds of thrust at liftoff, FALCON X Heavy is the most capable rocket flying. By comparison, the liftoff thrust of the Falcon Heavy equals approximately eighteen 747 aircraft at full power.

Falcon 9 is an EELV-class medium-lift vehicle capable of delivering up to 22,800 kilograms (50,265 lb) to orbit, and is intended to compete with the Delta IV and the Atlas V rockets, as well as other launch providers around the world. It has nine Merlinengines in its first stage.The Falcon 9 v1.0 rocket successfully reached orbit on its first attempt on June 4, 2010. Its third flight, COTS Demo Flight 2, launched on May 22, 2012, and was the first commercial spacecraft to reach and dock with the International Space Station.The vehicle was upgraded to Falcon 9 v1.1 in 2013 and again in 2015 to the current Falcon 9 Full Thrust version. As of March 2017, Falcon 9 vehicles have flown 30 successful missions with two failures, one after launch and the other during fueling for a routine pre-launch static fire.

In 2011, SpaceX began development of the Falcon Heavy, a heavy-lift rocket configured using a cluster of three Falcon 9 first stage cores with a total 27 Merlin 1Dengines and propellant crossfeed. The first stage would be capable of lifting 63,957 kilograms (141,100 lb) to LEO with the 27 Merlin 1D engines producing 22,819kN of thrust at sea level, and 24,681 kN in space. When SpaceX finishes development and the rocket is launched, the Falcon Heavy will be the world's most powerful rocket in operation. SpaceX is aiming for the first demonstration flight of the Falcon Heavy in November 2017.