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Merlin 1D FT USA: SpaceX: Falcon 9 B5, Heavy: Active 1st RP-1 / LOX: Gas generator: 311: 914,000 [22] 845,000 (SL) [22] 108.0 [23] 470: 194.5 [22] Merlin Vacuum 1D USA: SpaceX: Falcon 9 B5, Heavy: Active 2nd RP-1 / LOX: Gas generator: 348 [24] 981,000 [25] 2.36: Miranda USA: Firefly Aerospace: Antares 300 Series, MLV: Development 1st RP-1 / LOX ...
SpaceX's Merlin and Kestrel rocket engines use a RP-1 and liquid oxygen ("kerolox") combination. Raptor has about triple the thrust of SpaceX's Merlin 1D engine, which powers the Falcon 9 and Falcon Heavy launch vehicles. Raptor was conceived to burn hydrogen and oxygen propellants as of 2009. [36]
The booster would utilize multiple Raptor engines, similar to the use of nine Merlin 1s on each Falcon 9 booster core. [17] The following month, SpaceX confirmed that as of March 2014, all Raptor development work is exclusively on this single very large rocket engine, and that no smaller Raptor engines were in the current development mix. [14]
Merlin is a family of rocket engines developed by SpaceX. They are currently a part of the Falcon 9 and Falcon Heavy launch vehicles, and were formerly used on the Falcon 1. Merlin engines use RP-1 and liquid oxygen as rocket propellants in a gas-generator power cycle. The Merlin engine was originally designed for sea recovery and reuse, but ...
SpaceX's first launch vehicle, the Falcon 1, was the first privately developed liquid fueled launch vehicle to be launched into orbit, and used SpaceX's Merlin and Kestrel engines for its first and second stages, respectively.
According to SpaceX engine development head Tom Mueller, SpaceX could use nine Raptor engines on a single MCT booster or spacecraft. [ 33 ] [ 34 ] 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.
He was employee No.1 of SpaceX and is the founder and now CEO of Impulse Space. [1] Mueller is best known for his engineering work on the Merlin, Draco, Super Draco and TR-106 rocket engines. He is considered one of the world's leading spacecraft propulsion experts and holds several United States patents for propulsion technology. [2] [3]
The Raptor's gimbaling range is 15°, higher than the RS-25's 12.5° and the Merlin's 5°. SpaceX has stated they aim to achieve a per unit production cost of US$250,000 upon starting mass production.