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Falcon 9

 Falcon 9 is a partially reusable two-stage-to-orbit medium-lift launch vehicle designed and manufactured by SpaceX in the United States. Both the first and second stages are powered by SpaceX Merlin engines, using cryogenic liquid oxygen and rocket-grade kerosene as propellants



The Falcon 9 was intended to enable launches to Low-Earth orbit (LEO), Geosynchronous Transfer Orbit (GTO), as well as both crew and cargo vehicles to the International Space Station (ISS).

Falcon 9 is a reusable, two-stage rocket designed and manufactured by SpaceX for the reliable and safe transport of people and payloads into Earth orbit and beyond. Falcon 9 is the world’s first orbital class reusable rocket. Reusability allows SpaceX to refly the most expensive parts of the rocket, which in turn drives down the cost of space access.


FALCON 9 overview 



HEIGHT70 m / 229.6 ft
DIAMETER3.7 m / 12 ft
MASS549,054 kg / 1,207,920 lb
PAYLOAD TO LEO22,800 kg / 50,265 lb
PAYLOAD TO GTO8,300 kg / 18,300 lb
PAYLOAD TO MARS4,020 kg / 8,860 lb

FIRST STAGE





Falcon 9’s first stage incorporates nine Merlin engines and aluminum-lithium alloy tanks containing liquid oxygen and rocket-grade kerosene (RP-1) propellant.

Falcon 9 generates more than 1.7 million pounds of thrust at sea level.



SECOND STAGE



The second stage, powered by a single Merlin Vacuum Engine, delivers Falcon 9’s payload to the desired orbit. The second stage engine ignites a few seconds after stage separation, and can be restarted multiple times to place multiple payloads into different orbits.

NUMBER OF ENGINES1 vacuum
BURN TIME397 sec
THRUST981 kN / 220,500 lbf

INTERSTAGE



The interstage is a composite structure that connects the first and second stages, and houses the pneumatic pushers that allow the first and second stage to separate during flight.

GRID FINS

Falcon 9 is equipped with four hypersonic grid fins positioned at the base of the interstage. They orient the rocket during reentry by moving the center of pressure.

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PAYLOAD



Made of a carbon composite material, the fairing protects satellites on their way to orbit. The fairing is jettisoned approximately 3 minutes into flight, and SpaceX continues to recover fairings for reuse on future missions.

HEIGHT13.1 m / 43 ft
DIAMETER5.2 m / 17.1 ft

falcon 9 engine ?

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.

PROPELLANTLOX / RP-1
THRUST845 kN / 190,000 lbf


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