Overview
Falcon Heavy is SpaceX's heavy-lift launch vehicle, consisting of three Falcon 9 first-stage cores strapped together — a central core flanked by two side boosters. It is currently the most powerful operational rocket in the world by payload to orbit, capable of delivering 63,800 kg to LEO or 26,700 kg to geostationary transfer orbit (GTO). Both side boosters are recovered and reused; the centre core can also be recovered on some missions.
Key Specifications
| Parameter | Value |
|---|---|
| Operator | SpaceX |
| First Flight | 6 February 2018 |
| Height | 70 m (229.6 ft) |
| Diameter | 12.2 m (core + boosters) |
| Mass at Liftoff | ~1,420,788 kg |
| Engines | 27 × Merlin 1D (first stage), 1 × Merlin Vacuum (second stage) |
| Thrust at Liftoff | ~22,819 kN (5.13 million lbf) |
| Payload to LEO | 63,800 kg |
| Payload to GTO | 26,700 kg |
| Payload to Mars | 16,800 kg |
| Reusability | Side boosters reusable, centre core optionally reusable |
| Launch Site | LC-39A, Kennedy Space Center, Florida |
Flight History
Falcon Heavy's maiden flight in February 2018 famously launched Elon Musk's personal Tesla Roadster into a heliocentric orbit. The demonstration was a success, with both side boosters landing simultaneously at Cape Canaveral — one of the most iconic moments in modern rocketry.
As of its 12th flight in April 2026, Falcon Heavy has maintained a 100% mission success rate with 16 consecutive booster landings. Notable missions include US national security payloads (USSF-44, USSF-52 with the X-37B spaceplane), the Arabsat-6A communications satellite, NASA's Psyche asteroid mission, NASA's Europa Clipper mission to Jupiter's moons, NOAA's GOES-19 weather satellite, and ViaSat-3 F3. It is the only currently operational rocket capable of launching the heaviest US military and intelligence payloads.
Falcon Heavy vs Falcon 9
Falcon Heavy uses three Falcon 9 first-stage cores. The side boosters are typically flight-proven Falcon 9 boosters, while the centre core is a strengthened variant. The second stage is identical to Falcon 9. For payloads that fit within Falcon 9's capacity (~22,800 kg to LEO), SpaceX uses the single-stick Falcon 9; Falcon Heavy is reserved for payloads that exceed that limit or require direct insertion to high-energy orbits.
Future
Falcon Heavy will eventually be superseded by Starship, which offers vastly greater payload capacity (150,000+ kg to LEO) with full reusability. However, Falcon Heavy remains in active service with a significant manifest of US government and commercial missions through at least 2028, including NASA's Dragonfly rotorcraft mission to Saturn's moon Titan (launch window opening July 2028).
