|
BE-4
The BE-4 (Blue Engine 4) is a liquid rocket engine developed by Blue Origin. It uses an oxygen-rich, liquefied natural gas, liquefied methane fuel and operates on a staged combustion cycle. The BE-4 produces of thrust at sea level. Development of the BE-4 was funded through a combination of private investment and public contracts. Although initially intended solely for use on Blue Origin's proprietary launch vehicle, the New Glenn, the engine was also selected in 2014 by United Launch Alliance (ULA) for its Vulcan Centaur rocket, which replaces the Atlas V. ULA finalized the BE-4 as its choice in September 2018. The BE-4 made its first flight aboard the Vulcan Centaur rocket on Peregrine Mission One, 8 January 2024. It later launched on New Glenn for the first time on 16 January 2025. History Following Aerojet, Aerojet's acquisition of Pratt & Whitney Rocketdyne in 2012, Blue Origin president Rob Meyerson saw an opportunity to fill a gap in the defense industrial base. Blue ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue Origin
Blue Origin Enterprises, L.P. is an American space technology company headquartered in Kent, Washington. The company operates the suborbital New Shepard rocket and the heavy-lift New Glenn rocket. In addition to producing engines for its own rockets, Blue Origin supplies engines for other vehicles, including United Launch Alliance's Vulcan Centaur. It is also working on the Blue Moon (spacecraft), Blue Moon human lunar lander for NASA's Artemis program, the Blue Ring spacecraft platform, and the Orbital Reef space station in partnership with other organizations. Founded in 2000 by Jeff Bezos, Blue Origin initially operated with a stealth startup, very low profile, funded by Bezos's private investments. In 2015, the company achieved a significant milestone with the first uncrewed launch and landing of the New Shepard and announced plans for New Glenn. In 2021, New Shepard completed its first crewed mission with Bezos himself on board, crossing the Kármán line, the conventiona ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vulcan Centaur
Vulcan Centaur is a heavy-lift launch vehicle developed and operated by United Launch Alliance (ULA). It is a two-stage-to-orbit launch vehicle consisting of the Vulcan first stage and the Centaur second stage. Replacing ULA's Atlas V and Delta IV rockets, the Vulcan Centaur is principally designed to meet the needs of the National Security Space Launch (NSSL) program, which supports U.S. intelligence agencies and the Defense Department, but ULA believes it will also be able to price missions low enough to attract commercial launches. ULA began development of the new launch vehicle in 2014, primarily to compete with SpaceX’s Falcon 9 and to comply with a Congressional mandate to phase out the use of the Russian-made RD-180 engine that powered the Atlas V. The first launch of the Vulcan Centaur was initially scheduled for 2019 but faced multiple delays due to developmental challenges with its new BE-4 first-stage engine and the Centaur second-stage. The Vulcan Centaur had ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Glenn
New Glenn is a heavy-lift launch vehicle developed and operated by the American company Blue Origin. The rocket is designed to have a Reusable launch vehicle, partially reusable, two-stage design with a diameter of . The first stage is powered by seven BE-4 engines, while the second stage relies on two BE-3, BE-3U engines, all designed and built in-house by Blue Origin. It launches from Cape Canaveral Launch Complex 36, with future missions planned from Vandenberg Space Launch Complex 9. Development of New Glenn began prior to 2013 and was officially announced in 2016. The rocket is named in honor of NASA astronaut John Glenn, the first American to orbit Earth. The inaugural vehicle was unveiled on the launch pad in February 2024. Its maiden flight took place on 16 January 2025, carrying a prototype Blue Ring spacecraft, marking the first launch from LC-36 since NROL-23 in 2005. This mission served as the first of several demonstration launches required to be certified for use b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Staged Combustion Cycle
The staged combustion cycle (sometimes known as topping cycle, preburner cycle, or closed cycle) is a power cycle of a bipropellant rocket engine. In the staged combustion cycle, propellant flows through multiple combustion chambers, and is thus combusted in stages. The main advantage relative to other rocket engine power cycles is high fuel efficiency, measured through specific impulse, while its main disadvantage is engineering complexity. Typically, propellant flows through two kinds of combustion chambers; the first called and the second called . In the preburner, a small portion of propellant, usually fuel-rich, is partly combusted under non- stoichiometric conditions, increasing the volume of flow driving the turbopumps that feed the engine with propellant. The gas is then injected into the main combustion chamber and combusted completely with the other propellant to produce thrust. Tradeoffs The main advantage is fuel efficiency due to all of the propellant flowin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Launch Alliance
United Launch Alliance, LLC (ULA) is an American launch service provider formed in December 2006 as a joint venture between Lockheed Martin Space and Boeing Defense, Space & Security. The company designs, assembles, sells and launches rockets, but the company subcontracts out the production of rocket engines and solid rocket boosters. When founded, the company inherited the Atlas rocket family from Lockheed Martin and the Delta rocket family from Boeing. As of 2024, the Delta family has been retired and the Atlas V is in the process of being retired. ULA began development of the Vulcan Centaur in 2014 as replacement for both the Atlas and Delta rocket families. The Vulcan Centaur completed its maiden flight in January 2024. The primary customers of ULA are the Department of Defense (DoD) and NASA, but it also serves commercial clients. Company history Formation Boeing and Lockheed Martin announced on 2 May 2005 that they would establish a 50/50 joint venture, United L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RD-180
The RD-180 () is a rocket engine that was designed and built in Russia. It features a dual combustion chamber, dual-nozzle design and is fueled by a RP-1/ LOX mixture. The RD-180 is derived from the RD-170 line of rocket engines, which were used in the Soviet Energia launch vehicle. The engine was developed for use on the US Atlas III and Atlas V launch vehicles and first flew in 2000. It was never used on any other rocket. The engine has flown successfully on all six Atlas III flights and on 99 Atlas V flights, with just a single non-critical failure in March 2016. Atlas V is being phased out due to the national security implications of reliance on the Russian-built engine, which became a concern after the Russian annexation of Crimea. In 2021, Atlas manufacturer United Launch Alliance announced that it was retiring the Atlas V and that it had already taken delivery of the RD-180 engines for the remaining rockets. , 16 launches remain. In 2022, Russian supplies and maintena ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlas V
Atlas V is an expendable launch system and the fifth major version in the Atlas (rocket family), Atlas launch vehicle family. It was developed by Lockheed Martin and has been operated by United Launch Alliance (ULA) since 2006. Primarily used to launch payloads for the United States Department of Defense, NASA, and commercial customers, Atlas V is the longest-serving active rocket in the United States. Each Atlas V vehicle consists of two main stages. The First stage (rocketry), first stage is powered by a single Russian-made RD-180 engine that burns kerosene and liquid oxygen. The Centaur (rocket stage), Centaur upper stage uses one or two American-made Aerojet Rocketdyne RL10 engines that burn liquid hydrogen and liquid oxygen. Strap-on booster, Strap-on Solid rocket booster, solid rocket boosters (SRBs) are used in several configurations. Originally equipped with AJ-60A SRBs, the vehicle switched to Graphite-Epoxy Motor (GEM 63) boosters beginning in November 2020, except for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liquid Methane
Methane ( , ) is a chemical compound with the chemical formula (one carbon atom bonded to four hydrogen atoms). It is a group-14 hydride, the simplest alkane, and the main constituent of natural gas. The abundance of methane on Earth makes it an economically attractive fuel, although capturing and storing it is difficult because it is a gas at standard temperature and pressure. In the Earth's atmosphere methane is transparent to visible light but absorbs infrared radiation, acting as a greenhouse gas. Methane is an organic compound, and among the simplest of organic compounds. Methane is also a hydrocarbon. Naturally occurring methane is found both below ground and under the seafloor and is formed by both geological and biological processes. The largest reservoir of methane is under the seafloor in the form of methane clathrates. When methane reaches the surface and the atmosphere, it is known as atmospheric methane. The Earth's atmospheric methane concentration h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rob Meyerson
Robert E. "Rob" Meyerson is an American aerospace engineer and executive. Meyerson is the co-founder and CEO of Interlune, a natural resources company focused on harvesting resources from the Moon. Interlune came out of stealth mode in March 2024. He is the former president of Blue Origin. Career Delalune Space Meyerson is the founder and CEO of Delalune Space, a management consulting firm providing advisory services to the aerospace, mobility, technology, and financial sectors. He is a board director or advisor to numerous organizations. Axiom Space In 2021, it was announced that Meyerson, former Blue Origin president, would be joining Axiom's board of directors and that Axiom Space had raised $130m in a new round of funding. Meyerson stated that Axiom Space is a force in the space sector, and it would enhance the vision for a secure global future. Blue Origin Meyerson joined Blue Origin in 2003 as program manager later becoming the first company president. Work ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
