Quality function deployment ( QFD ) is a method developed in Japan beginning in 1966 to help transform the voice of the customer into engineering characteristics for a product. Yoji Akao , the original developer, described QFD as a "method to transform qualitative user demands into quantitative parameters, to deploy the functions forming quality, and to deploy methods for achieving the design quality into subsystems and component parts, and ultimately to specific elements of the manufacturing process." The author combined his work in quality assurance and quality control points with function deployment used in value engineering .
59-520: The house of quality, a part of QFD, is the basic design tool of quality function deployment. It identifies and classifies customer desires (WHATs), identifies the importance of those desires, identifies engineering characteristics which may be relevant to those desires (HOWs), correlates the two, allows for verification of those correlations, and then assigns objectives and priorities for the system requirements. This process can be applied at any system composition level (e.g. system, subsystem, or component) in
118-498: A cargo spaceship contractor. On 1 April 2008, MHI established Mitsubishi Aircraft Corporation as a subsidiary to develop and produce the MRJ or Mitsubishi Regional Jet , a 70 to 90 passenger regional airliner. MHI is the majority shareholder of the new company, with Toyota Motor Corporation owning 10%. On December 12, 2012, MHI acquired Pratt & Whitney Power Systems , the small gas turbine business of United Technologies . In
177-625: A "vital national interest" at a moment when the French unemployment level stands above 10% and some voters are turning towards the conservative party. GE's proposal ultimately prevailed. MHI had entered the high-speed train business in 1995, with the manufacture of the MLX01 SCMaglev car , a business it exited in 2017 after struggling with the development costs of the Mitsubishi SpaceJet , and disagreements with Central Japan Railway Company over
236-556: A blind eye to Korean victims. On November 28, 2018, MHI was ordered by the South Korea Supreme Court to pay 150m won ($ 133,000; £104,000) in compensation to 10 surviving Koreans who were victims of forced labor which the company oversaw during the Japanese occupation of Korea . Eighteen family members of other victims of the forced labour overseen by MHI, who had previously sued sometime before 2008, were now able to receive
295-560: A deal expected to close in the first half of 2020, subject to regulatory approval. MHI will benefit from Bombardier's global expertise in areas ranging from engineering and certification to customer relations and support, boosting its SpaceJet (formerly MRJ) programme, and potentially enabling the SpaceJet to be produced in North America. The deal includes two service centres in Canada and two in
354-487: A joint-venture named MHI Vestas Offshore Wind to develop offshore wind energy based on Vestas' V164 8.0MW turbine. In 2020, MHI acquired 2.5% of Vestas by transferring its 50% of MHI Vestas to Vestas, and receiving 5 million new Vestas shares. MHI's products include: Mitsubishi Heavy Industries apologized and compensated victims of Chinese forced labor by Japan during World War II in 2015. Yonhap News Agency criticized Mitsubishi for rescuing Chinese victims while turning
413-560: A loss in FY 2020 partly because of the continuous delays of the first delivery of the SpaceJet. At the height of the COVID-19 pandemic that crippled the aviation industry, MHI decided to put a halt to the project. In 2010, MHI commenced production of the Type 10 advanced main battle tank, at a cost of $ 11.3 million per unit, to replace the Type 90 tank . The nuclear business of MHI operates facilities in
472-529: A rocket stage may be recovered while others are not. The Space Shuttle , for example, recovered and reused its solid rocket boosters , the Space Shuttle orbiter that also acted as a second stage, and the engines used by the core stage (the RS-25 , which was located at the back of the orbiter), however the fuel tank that the engines sourced fuel from, which was separate from the engines, was not reused. For example,
531-421: A special emphasis on modularity. There are three main differences to QFD as applied in modular function deployment compared to house of quality: The benchmarking data is mostly gone; the checkboxes and crosses have been replaced with circles, and the triangular "roof" is missing. Mitsubishi Heavy Industries Mitsubishi Heavy Industries, Ltd. ( 三菱重工業株式会社 , Mitsubishi Jūkōgyō Kabushiki-kaisha , MHI )
590-578: A withdrawal from LNG carrier construction, started to negotiate with Oshima Shipbuilding to divest its historic shipyard located in Koyagi, Nagasaki. On 24 December 2019, Mitsubishi Shipbuilding delivered its first fuel gas supply system for a marine LNG engine . In June 2020, MHI entered talks with Mitsui Engineering & Shipbuilding to acquire the latter's naval and patrol ship business. The deal would strengthen MHI's defense sector, effectively consolidating Japan's defense industry as well. The deal
649-680: Is a Japanese multinational engineering , electrical equipment and electronics corporation headquartered in Tokyo , Japan. MHI is one of the core companies of the Mitsubishi Group and its automobile division is the predecessor of Mitsubishi Motors . MHI's products include aerospace and automotive components, air conditioners , elevators , forklift trucks , hydraulic equipment , printing machines , missiles , tanks , power systems , ships , aircraft , railway systems , and space launch vehicles . Through its defense-related activities, it
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#1733092844663708-643: Is developing the first stage of the orbital New Glenn LV to be reusable, with first flight planned for no earlier than 2024. SpaceX has a new super-heavy launch vehicle under development for missions to interplanetary space . The SpaceX Starship is designed to support RTLS, vertical-landing and full reuse of both the booster stage and the integrated second-stage/large-spacecraft that are designed for use with Starship. Its first launch attempt took place in April 2023; however, both stages were lost during ascent. The fifth launch attempt ended with Booster 12 being caught by
767-585: Is expected to be reached by the end of 2020, with the parties closing the transaction by October 2021, if approved by regulators. On January 17, 2022, the first successful sea voyage of an unmanned, fully autonomous vessel was successfully carried out by the Soleil , built by MHI. The demonstration, conducted in cooperation of Shin Nihonkai Ferry , sailed 240 kilometres, from Shinmoji in Northern Kyushu , to
826-445: Is generally a matrix with customer desires on one dimension and correlated nonfunctional requirements on the other dimension. The cells of matrix table are filled with the weights assigned to the stakeholder characteristics where those characteristics are affected by the system parameters across the top of the matrix. At the bottom of the matrix, the column is summed, which allows for the system characteristics to be weighted according to
885-463: Is the ballistic missile -shaped multistage rocket , but the term is more general and also encompasses vehicles like the Space Shuttle . Most launch vehicles operate from a launch pad , supported by a launch control center and systems such as vehicle assembly and fueling. Launch vehicles are engineered with advanced aerodynamics and technologies, which contribute to high operating costs. An orbital launch vehicle must lift its payload at least to
944-641: Is the world's 23rd-largest defense contractor measured by 2011 defense revenues and the largest based in Japan. In 1857, at the request of the Tokugawa Shogunate , a group of Dutch engineers were invited, including Dutch naval engineer Hendrik Hardes, and began work on the Nagasaki Yotetsusho ( 長崎鎔鉄所 ), a modern, Western-style foundry and shipyard near the Dutch settlement of Dejima , at Nagasaki . This
1003-667: The European Space Agency is responsible for the Ariane V , and the United Launch Alliance manufactures and launches the Delta IV and Atlas V rockets. Launchpads can be located on land ( spaceport ), on a fixed ocean platform ( San Marco ), on a mobile ocean platform ( Sea Launch ), and on a submarine . Launch vehicles can also be launched from the air . A launch vehicle will start off with its payload at some location on
1062-654: The Japan Air Self-Defense Force and anti-submarine helicopters for the Japan Maritime Self-Defense Force , as well as aero-engines, missiles and torpedoes. It produced North American F-86 Sabre , Lockheed F-104 Starfighter and McDonnell Douglas F-4 Phantom II fighters. It manufactured 139 Mitsubishi F-15J fighter aircraft from 1981 and produced 200 Sikorsky S-70 family Mitsubishi H-60 helicopters from 1989, in both cases under license production. The company also plays an important role in
1121-636: The Nagasaki Shipyard & Machinery Works ( 長崎造船機械工 ) and entered the shipbuilding business on a large scale. Iwasaki purchased the shipyards outright in 1887. In 1891, "Mitsubishi Heavy Industries - Yokohama Machinery Works" was started as Yokohama Dock Company, Ltd . Its main business was ship repairs, to which it added ship servicing by 1897. The works was renamed Mitsubishi Shipyard of Mitsubishi Goshi Kaisha in 1893 and additional dry docks were completed in 1896 and 1905. The "Mitsubishi Heavy Industries - Shimonoseki Shipyard & Machinery Works"
1180-654: The Occupation of Japan ended, which meant that the ban on using zaibatsu names was lifted. Accordingly, all three companies changed names again on 7 May 1952: West Japan Heavy Industries (the Nagasaki Shipyard) was renamed Mitsubishi Shipbuilding & Engineering Co., Ltd. , Central Japan Heavy Industries, Ltd. was renamed Shin-Mitsubishi Jukogyo K.K. (also trading as Mitsubishi Heavy Industries, Reorganized, Ltd. ; shin meaning "New"), while East Japan Heavy-Industries became Mitsubishi Nippon Heavy Industries. In 1964,
1239-802: The Yamato-class battleship , Musashi, of the Imperial Japanese Navy during World War II . MHI has shipbuilding facilities in Nagasaki , Kobe and Shimonoseki , Japan. Nagasaki Shipyard & Machinery Works ( 三菱重工長崎造船所 , Mitsubishi Juko Nagasaki Zosenjo ) is the primary shipbuilding division of MHI. It primarily produces specialized commercial vessels, including LNG carriers , and passenger cruise ships . On 1 December 2017, MHI announced that it will launch two new wholly owned companies on 1 January 2018 in conjunction with reorganization of its shipbuilding business: In late 2019, MHI, exploring
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#17330928446631298-480: The atomic bombing of Hiroshima three days earlier, dealt a devastating blow to the Japanese leadership, contributing to the surrender of Japan six days later. The Kobe Shipyard of Mitsubishi Goshi Kaisha was established in 1905. The Kobe Shipyard merged with Mitsubishi Heavy Industries in 1934. The Kobe Shipyard constructed the ocean liner Argentina Maru (later repurposed as the aircraft carrier Kaiyo ), and
1357-444: The upper stage of the launch vehicle or launched to a geostationary transfer orbit (GTO). A direct insertion places greater demands on the launch vehicle, while GTO is more demanding of the spacecraft. Once in orbit, launch vehicle upper stages and satellites can have overlapping capabilities, although upper stages tend to have orbital lifetimes measured in hours or days while spacecraft can last decades. Distributed launch involves
1416-445: The "problems concerning property, rights, and interests" that had been existed between the two countries and respective peoples thereof during the occupation era "have been settled completely and finally". Launch vehicle A launch vehicle is typically a rocket -powered vehicle designed to carry a payload (a crewed spacecraft or satellites ) from Earth's surface or lower atmosphere to outer space . The most common form
1475-535: The 1950s the company began to re-enter the aerospace industry in earnest. Along with other major Japanese companies it was involved in design and production of the NAMC YS-11 , the first Japanese airliner to enter production after World War II. In 1956 work started on the design of the Mitsubishi MU-2 , which became the company's first postwar aircraft design. In the defense sector, MHI has produced jet fighters for
1534-467: The 2000s and launch vehicles with integrated distributed launch capability built in began development in 2017 with the Starship design. The standard Starship launch architecture is to refuel the spacecraft in low Earth orbit to enable the craft to send high-mass payloads on much more energetic missions. After 1980, but before the 2010s, two orbital launch vehicles developed the capability to return to
1593-653: The Iyonada Sea , over seven hours, with a maximum speed of 26 knots. In the LIMA 2023 convention, MHI unveiled the Multi-Role Support Ship concept for visitors. MHI has installed more 3,282 MW worldwide until December 2009, mainly turbines with 1 and 2.4 MW. The company is developing 7-MW-turbines for offshore wind power . Tests are planned for 2013 in Europe. On September 27, 2013, MHI and Vestas Wind Systems announced
1652-688: The Japanese Ballistic Missile Defense System program. In the space systems sector, MHI is the producer of the H-IIA and H-IIB launch vehicles, Japan's main rockets, and provides launch services for national institutions and companies around the world. The clients include JAXA , KARI , Mohammed bin Rashid Space Centre , and Inmarsat . The company is also involved in the International Space Station program as
1711-531: The US, as well as the type certificates for the CRJ. Bombardier will retain its assembly facility at Mirabel , near Montreal , Canada, and will continue to produce the CRJ on behalf of MHI until the current order backlog is complete. In early May 2020, MHI confirmed that all conditions had been met and that the transaction would be closed on 1 June. The acquired aviation unit was then renamed MHI RJ Aviation Group. MHI recorded
1770-1062: The United States–based airline Trans States Holdings . MHI entered talks with Hitachi in August 2011 about a potential merger of the two companies, in what would have been the largest merger between two Japanese companies in history. The talks subsequently broke down and were suspended. In November 2012, MHI and Hitachi agreed to merge their thermal power generation businesses into a joint venture to be owned 65% by MHI and 35% by Hitachi. The joint venture began operations in February 2014 and ended in 2020, as Hitachi transferred its shares to MHI. In June 2014 Siemens and MHI announced their formation of joint ventures to bid for Alstom 's troubled energy and transportation businesses (in locomotives, steam turbines, and aircraft engines). A rival bid by General Electric (GE) has been criticized by French government sources, who consider Alstom's operations as
1829-612: The Yokohama Dock Company in 1935. From its inception, the Mitsubishi Nagasaki shipyards were heavily involved in contracts for the Imperial Japanese Navy . The largest battleship Musashi was completed at Nagasaki in 1942. These connections made Nagasaki a target for strategic bombing during World War II by the Allied air forces , which later dropped an atomic bomb on the city on August 9, 1945. This attack, following
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1888-468: The accomplishment of a goal with multiple spacecraft launches. A large spacecraft such as the International Space Station can be constructed by assembling modules in orbit, or in-space propellant transfer conducted to greatly increase the delta-V capabilities of a cislunar or deep space vehicle. Distributed launch enables space missions that are not possible with single launch architectures. Mission architectures for distributed launch were explored in
1947-530: The booster stage of a launch vehicle. After 2010, SpaceX undertook a development program to acquire the ability to bring back and vertically land a part of the Falcon 9 orbital launch vehicle: the first stage . The first successful landing was done in December 2015, since 2017 rocket stages routinely land either at a landing pad adjacent to the launch site or on a landing platform at sea, some distance away from
2006-838: The boundary of space, approximately 150 km (93 mi) and accelerate it to a horizontal velocity of at least 7,814 m/s (17,480 mph). Suborbital vehicles launch their payloads to lower velocity or are launched at elevation angles greater than horizontal. Practical orbital launch vehicles use chemical propellants such as solid fuel , liquid hydrogen , kerosene , liquid oxygen , or hypergolic propellants . Launch vehicles are classified by their orbital payload capacity, ranging from small- , medium- , heavy- to super-heavy lift . Launch vehicles are classed by NASA according to low Earth orbit payload capability: Sounding rockets are similar to small-lift launch vehicles, however they are usually even smaller and do not place payloads into orbit. A modified SS-520 sounding rocket
2065-674: The cities of Kobe and Takasago in Hyogo Prefecture and in Yokohama, Kanagawa Prefecture. It also operates a nuclear fuel manufacturing plant in Tōkai, Ibaraki which processes 440 metric tons of Uranium per year. MHI has also developed the Mitsubishi APWR design. MHI has also signed a memorandum of understanding with Areva for the establishment of a joint venture, Atmea , for their next reactor design ATMEA1. MHI has also been selected as
2124-464: The civil aircraft sector, MHI develops and manufactures major airframe components, including fuselage panels for the Boeing 777 and composite-material wing boxes for the 787 . In June 2014, the company joined four other major Japanese companies in signing an agreement to build parts for Boeing's 777X aircraft . On 25 June 2019, MHI announced the acquisition of Bombardier Aviation 's CRJ programme, in
2183-477: The compensation as well by the decision. All twenty-eight plaintiffs had previously filed a lawsuit in Japan, but had their lawsuit dismissed by the Supreme Court of Japan in 2008. The Japanese government has officially disputed the lawsuit and defined the verdict as "a breach of the international law", citing the 1965 agreement which was made by the two nations to establish diplomatic relations , since all of
2242-413: The core company to develop a new generation of Fast Breeder Reactors (FBR) by the Japanese government. After that announcement was made, MHI established a new company, Mitsubishi FBR Systems , Inc. (MFBR) specifically for the development and realization of FBR technology, starting what is likely to be the most aggressive corporate venture into FBR and Generation IV reactor technology. As of 2015, MHI
2301-413: The crude oil and gas sectors as of 2015. Following financial difficulties at Areva , MHI announced in 2015 it would make a proposal to take a minority ownership stake in a new entity called inheriting Areva's nuclear reactor business and acquired a 19% stake in the entity in 2017. In 2018, the entity has been named Framatome . In 2020, MHI eventually acquired Hitachi's gas turbine business unit after
2360-418: The design of a product, and can allow for assessment of different abstractions of a system. It is intensely progressed through a number of hierarchical levels of WHATs and HOWs and analyse each stage of product growth (service enhancement), and production (service delivery). The house of quality appeared in 1972 in the design of an oil tanker by Mitsubishi Heavy Industries . The output of the house of quality
2419-442: The ground. In contrast, reusable launch vehicles are designed to be recovered intact and launched again. The Falcon 9 is an example of a reusable launch vehicle. As of 2023, all reusable launch vehicles that were ever operational have been partially reusable, meaning some components are recovered and others are not. This usually means the recovery of specific stages, usually just the first stage, but sometimes specific components of
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2478-561: The house of quality relevant to product development, and called metaheuristic methods "a promising approach for solving complicated problems of FQFD." The process of quality function deployment (QFD) is described in ISO 16355-1:2021. Pugh concept selection can be used in coordination with QFD to select a promising product or service configuration from among listed alternatives. Modular function deployment uses QFD to establish customer requirements and to identify important design requirements with
2537-514: The launch site (RTLS). Both the US Space Shuttle —with one of its abort modes —and the Soviet Buran had a designed-in capability to return a part of the launch vehicle to the launch site via the mechanism of horizontal-landing of the spaceplane portion of the launch vehicle. In both cases, the main vehicle thrust structure and the large propellant tank were expendable , as had been
2596-505: The launch site. The Falcon Heavy is similarly designed to reuse the three cores comprising its first stage. On its first flight in February 2018, the two outer cores successfully returned to the launch site landing pads while the center core targeted the landing platform at sea but did not successfully land on it. Blue Origin developed similar technologies for bringing back and landing their suborbital New Shepard , and successfully demonstrated return in 2015, and successfully reused
2655-529: The manufacturing costs of the SCMaglev cars. In February 2021, MHI sold its machine tools business MHI Machine Tool Co. to Nidec . In June 2024, MHI announced it will cease newspaper rotary printing press production due to declining demand. At the time the company held a 50% share of the Japanese rotary press market. MHI has aerospace facilities in Nagoya , Aichi , Komaki, Aichi and Mississauga, Canada . In
2714-546: The same booster on a second suborbital flight in January 2016. By October 2016, Blue had reflown, and landed successfully, that same launch vehicle a total of five times. The launch trajectories of both vehicles are very different, with New Shepard going straight up and down, whereas Falcon 9 has to cancel substantial horizontal velocity and return from a significant distance downrange. Both Blue Origin and SpaceX also have additional reusable launch vehicles under development. Blue
2773-517: The stakeholder characteristics. System parameters not correlated to stakeholder characteristics may be unnecessary to the system design and are identified by empty matrix columns, while stakeholder characteristics (identified by empty rows) not correlated to system parameters indicate "characteristics not addressed by the design parameters". System parameters and stakeholder characteristics with weak correlations potentially indicate missing information, while matrices with "too many correlations" indicate that
2832-483: The stakeholder needs may need to be refined . The concepts of fuzzy logic have been applied to QFD ("Fuzzy QFD" or "FQFD"). A review of 59 papers in 2013 by Abdolshah and Moradi found a number of conclusions: most FQFD "studies were focused on quantitative methods" to construct a house of quality matrix based on customer requirements, where the most-employed techniques were based on multiple-criteria decision analysis methods. They noted that there are factors other than
2891-428: The standard procedure for all orbital launch vehicles flown prior to that time. Both were subsequently demonstrated on actual orbital nominal flights, although both also had an abort mode during launch that could conceivably allow the crew to land the spaceplane following an off-nominal launch. In the 2000s, both SpaceX and Blue Origin have privately developed a set of technologies to support vertical landing of
2950-569: The submarines the I-19 and I-25 . Following the dissolution of the zaibatsu after the surrender of Japan at the end of World War II , Mitsubishi divided into three companies in January 1950: Mitsubishi Nagasaki became West Japan Heavy Industries, Ltd , the Kobe Shipyard became Central Japan Heavy-Industries, Ltd. , and the Yokohama branch became East Japan Heavy-Industries, Ltd. On 28 April 1952
3009-498: The surface of the Earth. To reach orbit, the vehicle must travel vertically to leave the atmosphere and horizontally to prevent re-contacting the ground. The required velocity varies depending on the orbit but will always be extreme when compared to velocities encountered in normal life. Launch vehicles provide varying degrees of performance. For example, a satellite bound for Geostationary orbit (GEO) can either be directly inserted by
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#17330928446633068-449: The three independent companies from the 1950 break-up were merged into Shin-Mitsubishi Jukogyo and became Mitsubishi Heavy Industries, Ltd. The Nagasaki works was renamed the Nagasaki Shipyard & Engine Works . The Kobe works was renamed the 'Mitsubishi Heavy Industries - Kobe Shipyard & Machinery Works'. In 1970, MHI's automobile parts department became an independent company as Mitsubishi Motors . In 1974, its Tokyo headquarters
3127-482: The two companies had merged their businesses to form a joint venture. Shipbuilding has been a core and historical founding activity for MHI. It was formally started in 1884 when Mitsubishi leased and then acquired the 'Nagasaki Shipyard & Machinery Works' company (founded in 1857 as 'Nagasaki Yotetsusho Foundry' ). Subsequently, Mitsubishi progressively became one of the major Japanese shipbuilding companies, building both commercial as well as military ships, including
3186-543: Was carried out 4 years after a product recall scandal in Japan that was triggered by accusations of Mitsubishi Motors allegedly trying to systematically hide manufacturing defects to avoid recalls, and marketing problems in the US. In 1994, MHI opened the Mitsubishi Minatomirai Industrial Museum in Yokohama which is mainly a museum for kids to experience science and technology. In October 2009, MHI announced an order for up to 100 regional jets from
3245-556: Was developing a $ 15.8 billion nuclear power plant in Sinop, Turkey in partnership with Itochu and Engie , which would be its first overseas nuclear project. The deal has been officially scrapped in January 2020, after the feasibility of the project was doubted. MHI unsuccessfully attempted to acquire the energy business of Alstom in 2014 in order to develop its service network in Southeast Asia. MHI remains interested in acquisitions in
3304-405: Was established in 1914. It produced industrial machinery and merchant ships. The Nagasaki company was renamed Mitsubishi Shipbuilding & Engineering Company, Ltd. in 1917 and again renamed as Mitsubishi Heavy Industries in 1934. It became the largest private firm in Japan, active in the manufacture of ships, heavy machinery, airplanes and railway cars. Mitsubishi Heavy Industries merged with
3363-541: Was renamed Nagasaki Seitetsusho ( 長崎製鉄所 ) Nagasaki Iron (Steel) Foundry in 1860, and construction was completed in 1861. Following the Meiji Restoration of 1868, the shipyard was placed under control of the new Government of Meiji Japan . The first dry dock was completed in 1879. In 1884, Yataro Iwasaki , the founder of Mitsubishi, leased the Nagasaki Seitetsusho from the Japanese government, renamed it
3422-419: Was targeted in a bombing that killed eight people . MHI participated in a ¥540 billion emergency rescue of Mitsubishi Motors in January 2005, in partnership with Mitsubishi Corporation and Mitsubishi Tokyo Financial Group . As part of the rescue, MHI acquired ¥50 billion of Mitsubishi Motors stock, increasing its ownership stake to 15 percent and making the automaker an affiliate again. The emergency rescue
3481-596: Was used to place a 4-kilogram payload ( TRICOM-1R ) into orbit in 2018. Orbital spaceflight requires a satellite or spacecraft payload to be accelerated to very high velocity. In the vacuum of space, reaction forces must be provided by the ejection of mass, resulting in the rocket equation . The physics of spaceflight are such that rocket stages are typically required to achieve the desired orbit. Expendable launch vehicles are designed for one-time use, with boosters that usually separate from their payload and disintegrate during atmospheric reentry or on contact with
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