Falcon Heavy

Falcon Heavy
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Name	Falcon Heavy
Caption	Falcon Heavy during its maiden flight in February 2018
Function	Heavy-lift launch vehicle
Manufacturer	SpaceX
Country origin	United States
Height	70, m, ft
Diameter	3.66, m, ft (core) / 12.2, m, ft (with boosters)
Mass	1420, t, lb
Stages	2+ boosters
Capacity LEO	63.8, t, lb
Capacity GTO	26.7, t, lb
Capacity TMI	16.8, t, lb
Status	Active
First	February 6, 2018
Last	October 13, 2023

Falcon Heavy is a partially reusable heavy-lift launch vehicle designed and manufactured by SpaceX. It is derived from the Falcon 9 vehicle and consists of a strengthened Falcon 9 core stage with two additional first-stage boosters attached. The rocket was developed with the goal of carrying large payloads to low Earth orbit, geostationary transfer orbit, and beyond, including missions to the Moon and Mars.

Overview

The vehicle was conceived by Elon Musk in 2011 as a means to launch very large satellites and enable crewed missions beyond low Earth orbit. It is currently the world's most powerful operational rocket, capable of lifting nearly 64 metric tons to LEO. The design philosophy emphasizes reusability, with all three first-stage boosters designed to return to Earth for recovery and reuse, significantly reducing launch costs. Its first demonstration flight in 2018 successfully launched Elon Musk's personal Tesla Roadster into a heliocentric orbit.

Design and development

The architecture integrates three Falcon 9 first-stage cores, each powered by nine Merlin 1D engines, for a total of 27 engines at liftoff. The central core is structurally reinforced to handle the loads from the two side boosters. The second stage is a modified version of the Falcon 9 second stage, powered by a single Merlin Vacuum engine. Key development challenges included managing the complex aerodynamic forces during ascent and perfecting the synchronized landing of the side boosters. The project was officially announced at the National Press Club in Washington, D.C., with initial test flights conducted at SpaceX's South Texas Launch Site.

Launch history

The maiden flight, designated Demo Flight 1, occurred on February 6, 2018, from Launch Complex 39A at the Kennedy Space Center. This was followed by the Arabsat-6A mission in April 2019 and the STP-2 mission for the United States Space Force in June 2019. Subsequent missions have launched payloads for the National Reconnaissance Office, NASA, and commercial customers like ViaSat. All nine launches to date have been fully successful, with multiple demonstrations of simultaneous booster landings at Landing Zones 1 and 2.

Capabilities and performance

Performance varies significantly based on the mission profile and the extent of booster recovery. In a fully expendable configuration, it can deliver approximately 63.8 metric tons to low Earth orbit and 26.7 metric tons to geostationary transfer orbit. For missions to more energetic trajectories, such as a Trans-Mars injection, it can send about 16.8 metric tons. When all three boosters are recovered, performance is reduced but launch costs are minimized. This flexibility allows it to service a wide market, from large GEO communications satellites to interplanetary science missions for NASA.

Notable missions and payloads

Beyond its demo flight with the Tesla Roadster, the rocket has launched several high-profile payloads. The USSF-44 mission for the United States Space Force deployed a direct-to-geostationary orbit satellite. The USSF-67 mission carried the CBAS-2 and LDPE-3 spacecraft. It launched NASA's Psyche spacecraft to study the metallic asteroid 16 Psyche. Another significant payload was the ViaSat-3 Americas satellite, one of the world's highest-capacity communications satellites.

Future developments and variants

The vehicle is expected to remain a workhorse for heavy payloads until the fully reusable Starship system becomes operational. Planned missions include launching modules for the Lunar Gateway as part of the Artemis program and deploying the Europa Clipper spacecraft to Jupiter. A potential variant, using an extended fairing, has been proposed for particularly voluminous payloads. Its ongoing flight cadence will support critical national security missions for the United States Space Force and deep-space exploration objectives for NASA.

Category:SpaceX launch vehicles Category:Reusable launch systems Category:Heavy-lift launch vehicles