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Raptor is a family of rocket engines developed and manufactured by SpaceX.It is the third rocket engine in history designed with a full-flow staged combustion (FFSC) fuel cycle, and the first such engine to power a vehicle in flight. [15]
Raptor is a family of methane/liquid oxygen rocket engines under development by SpaceX since the late 2000s, [2] although LH2/LOX propellant mix was originally under study when the Raptor concept development work began in 2009. [15] When first mentioned by SpaceX in 2009, the term "Raptor" was applied exclusively to an upper stage engine ...
Engine Origin Designer Vehicle Status Use Propellant Power cycle Specific impulse (s) [a] Thrust (N) [a] Chamber pressure (bar) Mass (kg) Thrust: weight ratio [b] Oxidiser: fuel ratio
When stacked and fully fueled, Starship has a mass of approximately 5,000 t (11,000,000 lb), [c] a diameter of 9 m (30 ft) [16] and a height of 121.3 m (398 ft). [6] The rocket has been designed with the goal of being fully reusable to reduce launch costs; [17] it consists of the Super Heavy booster and the Starship upper stage [18] which are powered by Raptor and Raptor Vacuum engines.
According to SpaceX engine development head Tom Mueller, SpaceX could use nine Raptor engines on a single MCT booster or spacecraft. [ 52 ] [ 12 ] The preliminary design would be at least 10 meters (33 ft) in diameter, and was expected to have up to three cores totaling at least 27 booster engines.
One of S30's Raptor Vacuum engines was replaced on August 3, [154] and it was rolled back to Massey's on August 6, [154] where it conducted a spin prime test on August 7. [160] SpaceX claimed that Booster 12 (B12) and S30 were ready to fly on August 8. [160] S30 was then rolled back to the production site. [154] On September 21, S30 was lifted ...
Since the founding of SpaceX in 2002, the company has developed several rocket engines – Merlin, Kestrel, and Raptor – for use in launch vehicles, [159] [160] Draco for the reaction control system of the Dragon series of spacecraft, [161] and SuperDraco for abort capability in Crew Dragon.
Starship flight test 7 was the seventh flight test of a SpaceX Starship launch vehicle. Flight 7 lifted off from Orbital Launch Pad A (OLP-A) on January 16, 2025, at 22:37:00 UTC (4:37 pm CST, local time) at the Starbase launch site in Texas.