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Raptor [30] USA: SpaceX: Starship: Development 1st, 2nd CH 4 / ... Comparison of orbital rocket engines. 6 languages ...
The concept evolved from a family of Raptor-designated rocket engines (2012) [45] to focus on the full-size Raptor engine (2014). [46] In January 2016, the US Air Force awarded a US$33.6 million development contract to SpaceX to develop a prototype Raptor for use on the upper stage of Falcon 9 and Falcon Heavy. [47] [48]
SpaceX discussed in October 2013 that they intended to build a family of methane-based Raptor rocket engines, [16] initially announcing that the engine would achieve 2.94 meganewtons (661,000 lbf) vacuum thrust. [16] In February 2014, they announced that the Raptor engine would be used on the Mars Colonial Transporter. The booster would utilize ...
Raptor is a family of rocket engines developed by SpaceX for use in Starship and Super Heavy vehicles. It burns liquid oxygen and methane in an efficient and complex full-flow staged combustion power cycle. The Raptor engine uses methane as fuel rather than kerosene because methane gives higher performance and prevents the build-up of deposits ...
The Raptor engine uses a full-flow staged combustion cycle with oxygen and methane-rich turbopumps. [ 27 ] [ 28 ] Before 2014, only two full-flow staged-combustion rocket engine designs had advanced enough to undergo testing: the Soviet RD-270 project in the 1960s and the Aerojet Rocketdyne Integrated Powerhead Demonstrator in the mid-2000s. [ 29 ]
English: An analysis of the Raptor 2 full flow stage combustion cycle. Data from Elon Musk and SpaceX were combined with engineering analysis and reasonable assumptions to estimate engine parameters shown on this diagram.
The first flight test of a full-flow staged-combustion engine occurred on 25 July 2019 when SpaceX flew their Raptor methalox FFSC engine on the Starhopper test rocket, at their South Texas Launch Site. [10] As of January 2025, the Raptor is the only FFSC engine that has flown on a launch vehicle.
For valid comparison of the initial thrust-to-weight ratio of two or more engines or vehicles, thrust must be measured under controlled conditions. Because an aircraft's weight can vary considerably, depending on factors such as munition load, fuel load, cargo weight, or even the weight of the pilot, the thrust-to-weight ratio is also variable ...