Falcon 9 Block 5

Falcon 9 Block 5
Falcon 9 in its two configurations, with a Dragon 2 spacecraft (left) and payload fairing (right)
FunctionMedium-lift launch vehicle
ManufacturerSpaceX
Country of originUnited States
Cost per launchUS$69.75 million (2024)
Size
Height
  • 69.8 m (229 ft) with payload fairing
  • 65.7 m (216 ft) with Dragon 2
Diameter3.7 m (12 ft)
Mass549,000 kg (1,210,000 lb)
Stages2
Capacity
Payload to LEO
Orbital inclination28.5°
Mass
  • Expended: 22,800 kg (50,300 lb)
  • Reusable: 18,500 kg (40,800 lb)
Payload to GTO
Orbital inclination27°
Mass
  • Expended: 8,300 kg (18,300 lb)
  • Reusable: 5,500 kg (12,100 lb)
Payload to TMI
Mass4,000 kg (8,800 lb)
Associated rockets
FamilyFalcon 9
Based onFalcon 9 Full Thrust
Comparable
Launch history
StatusActive
Launch sites
Total launches558
Success(es)557
Failure1 (Starlink Group 9‑3)
Landings559 / 565 attempts
First flightMay 11, 2018 (Bangabandhu-1)
Last flightMarch 14, 2026 (most recent)
Carries passengers or cargo
First stage
Height41.2 m (135 ft)
Powered by9 × Merlin 1D
Maximum thrust7,600 kN (1,700,000 lbf)
PropellantLOX / RP-1
Second stage (standard)
Height13.8 m (45 ft 3 in)
Powered by1 × Merlin 1D Vacuum
Maximum thrust934 kN (210,000 lbf)
PropellantLOX / RP-1
Second stage (short nozzle)
Height13.6 m (44 ft 7 in)
Powered by1 × Merlin 1D Vacuum
Maximum thrust840 kN (190,000 lbf)
PropellantLOX / RP-1

Falcon 9 Block 5 is a partially reusable, human-rated, two-stage-to-orbit, medium-lift launch vehicle designed and manufactured in the United States by SpaceX. It is the fifth major version of the Falcon 9 family and the third version of the Falcon 9 Full Thrust. It is powered by Merlin 1D engines burning rocket-grade kerosene (RP-1) and liquid oxygen (LOX).

The main changes from Block 3 (the original Falcon 9 Full Thrust) to Block 5 are higher-thrust engines and improvements to the landing legs along with numerous other small changes to streamline recovery and re-use of first-stage boosters and fairing halves and increase the production rate. Each Block 5 booster is designed to fly ten times with only minor maintenance between launches and potentially up to 100 times with periodic refurbishment, while fairing halves have been recovered and reflown countless times.

In 2018, Block 5 succeeded the transitional Block 4 version. The maiden flight of the Block 5 launched the satellite Bangabandhu-1 on May 11, 2018. The CRS-15 mission on June 29, 2018, was the last to be launched on a Block 4 rocket, completing the transition to an all-Block 5 fleet.