Falcon Heavy
Over 5 million lbs of thrust
Falcon Heavy is composed of three reusable Falcon 9 nine-engine cores whose 27 Merlin engines together generate more than 5 million pounds of thrust at liftoff, equal to approximately eighteen 747 aircraft. As one of the world's most powerful operational rockets, Falcon Heavy can lift nearly 64 metric tons (141,000 lbs) to orbit.
Falcon Heavy
First stage
Three cores make up the first stage of Falcon Heavy. The side cores, or boosters, are connected on the nosecone, the interstage, and on the octaweb. Shortly after liftoff the center core engines are throttled down. After the side cores separate, the center core engines throttle back up to full thrust.
Falcon Heavy
Interstage
The interstage is a composite structure that connects the center core on the first stage and second stages and holds the release and separation system.
Grid fins
Falcon Heavy is equipped with 12 hypersonic grid fins, four on each booster, positioned at the base of the interstage or nosecone which orients by moving the center of pressure during reentry.
Falcon Heavy
Second stage
Falcon Heavy draws upon Falcon 9's proven design, which minimizes stage separation events and maximizes reliability. The second-stage Merlin Vacuum Engine delivers the rocket's payload to orbit after the main engines cut off and the first-stage cores separate.
| Number of engines | 1 |
| Burn time | 397 sec |
| Thrust | 981 kN / 220,500 lbf |
Falcon Heavy
Payload
Made of a carbon composite material, the fairing protects satellites on their way to orbit. SpaceX is recovering fairings for reuse on future missions.
| Height | 13.1 m / 43 ft |
| Diameter | 5.2 m / 17.1 ft |
Video
Falcon Heavy first flight
Unmatched performance
With more than 5 million pounds of thrust at liftoff, Falcon Heavy is one of the most capable rockets flying. By comparison, the liftoff thrust of the Falcon Heavy equals approximately eighteen 747 aircraft at full power. Falcon Heavy can lift the equivalent of a fully loaded 737 jetliner—complete with passengers, luggage and fuel—to orbit.
Engines
Merlin
Merlin is a family of rocket engines developed by SpaceX for use on its Falcon 1, Falcon 9 and Falcon Heavy launch vehicles. Merlin engines use a rocket grade kerosene (RP-1) and liquid oxygen as rocket propellants in a gas-generator power cycle. The Merlin engine was originally designed for recovery and reuse.
| Propellant | LOX / RP-1 |
| Thrust | 845 kN / 190,000 lbf |
