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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
Raptor 2 is a complete redesign of the Raptor 1 engine. [79] The turbomachinery, chamber, nozzle, and electronics were all redesigned. Many flanges were converted to welds, while other parts were deleted. [80] Simplifications continued after production began. On 10 February 2022, Musk showed Raptor 2 capabilities and design improvements. [80] [81]
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 ...
The Raptor engine uses a full-flow staged combustion cycle with oxygen and methane-rich turbopumps. [ 24 ] [ 25 ] 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. [ 26 ]
A Raptor 2 engine produces 2.3 MN (520,000 lbf) at a specific impulse of 327 seconds (3.21 km/s) at sea level and 350 seconds (3.4 km/s) in a vacuum. [121] Raptor vacuum , used on the Starship upper stage, is modified with a regeneratively cooled nozzle extension made of brazed steel tubes, increasing its expansion ratio to about 90 and its ...
[1] [2] The F119's nozzles incorporate thrust vectoring that enable them to direct the engine thrust ±20° in the pitch axis to give the F-22 enhanced maneuverability. The F119 is also the basis for the Joint Strike Fighter (JSF) propulsion system, with variants powering both the Boeing X-32 and Lockheed Martin X-35 concept demonstrators.
The differences among different types of table tennis rackets are often based on control, spin, speed, and power. Players should choose their racket based on their playing style, skill level, and personal preferences. Though the official ITTF term is "racket", [1] the US generally uses the term "paddle", while Europe and Asia use the term "bat".
Stiga Group (formerly GGP Spa) is a European manufacturer and distributor of lawnmowers and a wide range of motorized garden tools. It is headquartered in Castelfranco Veneto ( Italy ). Stiga has 13 subsidiaries in Europe ( Austria , Italy, Benelux , Czech Republic , Denmark , Finland , France , Germany , Norway , Poland , Sweden , UK ).
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