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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]
3.6 [34] Raptor Vacuum ... Vulcain 2.1 Europe: Snecma: Ariane 6 ... Comparison of solid-fuelled orbital launch systems; List of space launch system designs;
SpaceX has developed two kerosene-based engines through 2013, the Merlin 1 and Kestrel, and has publicly discussed a much larger concept engine high-level design named Merlin 2. Merlin 1 powered the first stage of the Falcon 1 launch vehicle and is used both on the first and second stages of the Falcon 9 and Falcon Heavy launch vehicles. The ...
The Falcon 1e was to be 6.1 m (20 ft) longer than the Falcon 1, with an overall length of 27.4 m (90 ft), but with the same 1.68 m (5 ft 6 in) diameter. Its first stage had a dry mass of 2,580 kg (5,680 lb), and was powered by an upgraded [ 42 ] pump-fed [ 43 ] Merlin 1C engine burning 39,000 kg (87,000 lb) of RP-1 and liquid oxygen .
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. [102] 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 ...
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The XS-1 was to accelerate to hypersonic speed at the edge of the Earth's atmosphere to enable its payload to reach orbit. [48] In 2015, a modified BE-4 was believed to be the primary source of propulsion. [49] In May 2017, the contract award selected the RS-25-derived Aerojet Rocketdyne AR-22 engine instead. [50] The XS-1 was cancelled in 2020 ...
The Block 1 version of the booster (used through November 2024) produces a total of 73.5 MN (16,500,000 lb f) [3] just over twice that of the Saturn V first stage, [31] with this total being expected to increase to 80.8 MN (18,200,000 lb f) for Block 2 boosters and later up to 98.1 MN (22,100,000 lb f) with the Block 3 vehicle. [1]