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143-473: The Tupolev Tu-144 ( Russian : Tyполев Ту-144 ; NATO reporting name : Charger ) is a Soviet supersonic passenger airliner designed by Tupolev in operation from 1968 to 1999. The Tu-144 was the world's first commercial supersonic transport aircraft with its prototype 's maiden flight from Zhukovsky Airport on 31 December 1968, two months before the British-French Concorde . The Tu-144

286-421: A braking parachute . The Tu-144 was not fitted with any reverse thrust capabilities, and so the parachute was used as the sole alternative. A prototype without passenger seats was fitted with ejection seats for pilots. The aircraft was designed for a 30,000-hour service life over 15 years. Airframe heating and the high temperature properties of the primary structural materials, which were aluminium alloys , set

429-649: A constitutional referendum on whether to adopt Russian as a second official language. According to the Central Election Commission, 74.8% voted against, 24.9% voted for and the voter turnout was 71.1%. Starting in 2019, instruction in Russian will be gradually discontinued in private colleges and universities in Latvia, and in general instruction in Latvian public high schools. On 29 September 2022, Saeima passed in

572-510: A new education law which requires all schools to teach at least partially in Ukrainian, with provisions while allow indigenous languages and languages of national minorities to be used alongside the national language. The law faced criticism from officials in Russia and Hungary. The 2019 Law of Ukraine "On protecting the functioning of the Ukrainian language as the state language" gives priority to

715-572: A "great overlap" between the responsibilities and functions of the Central Committee , Secretariat and the Presidium of the Council of Ministers. However, Schapiro was not sure of the Presidium's membership or if the Presidium had any meetings. It is unknown whether the Presidium had any importance for ordinary policy-making during the 1950s and 1960s. Soviet works from that period make no mention of

858-511: A Central Committee plenum which forbade any single person to have the two most powerful jobs in the country: First Secretary (renamed General Secretary during 1966) and Premier of the Council of Ministers. Kosygin, the Premier of the Council of Ministers, was in charge of economic administration while Brezhnev, the General Secretary, cared for other domestic matters. During the later part of

1001-645: A Presidium of the Council of Ministers. Professor T.H. Rigby believes that the duties and responsibilities of the Presidium were at the time largely assumed by the Current Affairs Commission of the Council of Ministers and from 1956 possibly by the State Economic Commission of the Council of Ministers with both Commissions directed by Mikhail Pervukhin . During his visit to the USSR, political scientist Robert C. Tucker asked Mansur Mirza-Akhmedov ,

1144-690: A Tu-144 as a testbed for NASA's High Speed Commercial Research program, which was intended to design a second-generation supersonic jetliner called the High Speed Civil Transport . In 1995, Tu-144D No. 77114 (with only 82.5 hours of flight time) was taken out of storage and after extensive modification at a cost of US$ 350   million, designated the Tu-144LL (where LL is a Russian abbreviation for Flying Laboratory, Russian : Летающая Лаборатория , Letayushchaya Laboratoriya ). The aircraft made 27 flights in Russia during 1996 and 1997. Though regarded as

1287-665: A broken ramp delayed departure half an hour. On arrival to Alma-Ata, the Tu-144 was towed back and forth for 25 minutes to align it correctly with the exit ramp. Flight testing time logged on the prototype (68001) was 180 hours; flight testing time until the completion of state acceptance tests was 1509 hours, followed with 835 hours of flight time of service tests until the commencement of passenger service. The Tu-144S went into service on 26 December 1975, flying mail and freight between Moscow and Alma-Ata in preparation for passenger services, which commenced on 1 November 1977. The type certificate

1430-441: A conversation only with difficulty, and those seated two seats apart could not hear each other even when screaming and had to pass hand-written notes instead. Noise in the rear of the cabin was described as unbearable. The Tu-144 programme was cancelled by a Soviet government decree on 1 July 1983 that also provided for future use of the remaining Tu-144 aircraft as airborne laboratories. In 1985, Tu-144D were used to train pilots for

1573-691: A formula with V standing for the nucleus (vowel) and C for each consonant, the maximal structure can be described as follows: (C)(C)(C)(C)V(C)(C)(C)(C) Council of Ministers of the Soviet Union During 1946 the Council of People's Commissars was reorganized as the Council of Ministers. Accordingly, the People's Commissariats were renamed as Ministries . The council issued declarations and instructions based on and in accordance with applicable laws, which had obligatory jurisdictional power in all republics of

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1716-558: A hard or soft counterpart, and the distinction is a prominent feature of the language, which is usually shown in writing not by a change of the consonant but rather by changing the following vowel. Another important aspect is the reduction of unstressed vowels . Stress , which is often unpredictable, is not normally indicated orthographically , though an optional acute accent may be used to mark stress – such as to distinguish between homographic words (e.g. замо́к [ zamók , 'lock'] and за́мок [ zámok , 'castle']), or to indicate

1859-479: A language that "belongs to the European cultural space". The financing of Russian-language content by the state will cease, which the concept says create a "unified information space". However, one inevitable consequence would be the closure of public media broadcasts in Russian on LTV and Latvian Radio, as well as the closure of LSM's Russian-language service. In Lithuania , Russian has no official or legal status, but

2002-572: A lesser extent the languages to the south and the east: Uralic , Turkic , Persian , Arabic , and Hebrew . According to the Defense Language Institute in Monterey, California , Russian is classified as a level III language in terms of learning difficulty for native English speakers, requiring approximately 1,100 hours of immersion instruction to achieve intermediate fluency. Feudal divisions and conflicts created obstacles between

2145-452: A limited range of about 2,500 km (1,600  mi ; 1,300  nmi ), far less than Concorde. A maximum speed of 2,443 km/h (1,518 mph; 1,319 kn) (Mach 2.35) was reached with afterburning. Afterburners were added to Concorde to meet its take-off thrust requirement and were not necessary for supersonic cruise; the Tu-144 used maximum afterburner for take-off and minimum for cruise. The Tu-144S , of which nine were produced,

2288-466: A ministry and a state committee could be obscure as for the case of the Committee for State Security (KGB). State committees were instrumental in keeping the vast Soviet economic system coherent and integrated. The Presidium of the Council of Ministers was established during March 1953 as a result of the reorganisation of a special bureau formed during 1944 for the purpose of supervising and coordinating

2431-607: A minority language under the Framework Convention for the Protection of National Minorities . 30% of the population was fluent in Russian in 2006, and 2% used it as the main language with family, friends, or at work. In Azerbaijan , Russian has no official status, but is a lingua franca of the country. 26% of the population was fluent in Russian in 2006, and 5% used it as the main language with family, friends, or at work. In Georgia , Russian has no official status, but it

2574-606: A network of regional and local sovnarkhoz supervised by the Supreme Soviet of the National Economy . Khrushchev's economic reform proved disastrous as it severed regional economic relations and was abandoned by the Soviet Government after Khrushchev's ousting in 1964. The year later twenty-eight industrial ministries, eleven All-union and seventeen Union ministries were reestablished. The second attempt at decentralising

2717-516: A qualitatively new entity can be said to emerge—the general language of the working class... capitalism has the tendency of creating the general urban language of a given society. In 2010, there were 259.8 million speakers of Russian in the world: in Russia – 137.5 million, in the CIS and Baltic countries – 93.7 million, in Eastern Europe – 12.9 million, Western Europe – 7.3 million, Asia – 2.7 million, in

2860-416: A range in excess of 7,000 km (4,300 mi; 3,800 nmi) range were never implemented. The engine intakes had variable intake ramps and bypass flaps with positions controlled automatically to suit the engine airflow. They were very long to help prevent surging; twice as long as those on Concorde. Jean Rech (Sud Aviation) states the need for excessive length was based on the misconception that length

3003-448: A technical success, the project was cancelled for lack of funding in 1999. This aircraft was reportedly sold in 2001 online, but the aircraft sale did not proceed. Tejavia Systems, the company handling the transaction, reported that the deal was not signed as the replacement Kuznetsov NK-321 engines also used in a Tupolev Tu-160 bomber were military hardware and the Russian government would not allow them to be exported. In 2003, after

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3146-402: A vast network of government committees, commissions, and other institutions that reported directly to the Council of People's Commissars . Throughout its existence, the Presidium of the Council of Ministers was a mysterious institution. First World observers knew little of the Presidium's activities and functions, or even the frequencies of its meetings. In Soviet textbooks and by officials it

3289-445: A way to switch it off so the siren stayed on throughout the remaining 75 minutes of the flight. Eventually, the captain ordered the navigator to borrow a pillow from the passengers and stuff it inside the siren's horn. After all the suspense, all landing gear extended and the aircraft landed. A subsequent flight of Tu-144 on around 30 May 1978, not long before the type was withdrawn from passenger service, involved valve failure on one of

3432-472: A week, despite there being eight Tu-144S certified aircraft available and a number of other routes suitable for supersonic flights, suggesting that the Aeroflot decision-makers had little confidence in the Tu-144 commercial viability when passenger service began in 1977. In the late 1970s, Soviet insiders were intensely hopeful in conversations with Western counterparts of reintroducing Tu-144 passenger service for

3575-527: Is Belarusian, among ethnic Belarusians this share is 28.5%; the highest share of those who speak Belarusian at home is among ethnic Poles — 46.0%. In Estonia , Russian is spoken by 29.6% of the population, according to a 2011 estimate from the World Factbook, and is officially considered a foreign language. School education in the Russian language is a very contentious point in Estonian politics, and in 2022,

3718-475: Is a co-official language per article 5 of the Constitution of Kyrgyzstan . The 2009 census states that 482,200 people speak Russian as a native language, or 8.99% of the population. Additionally, 1,854,700 residents of Kyrgyzstan aged 15 and above fluently speak Russian as a second language, or 49.6% of the population in the age group. In Tajikistan , Russian is the language of inter-ethnic communication under

3861-401: Is a high degree of mutual intelligibility between Russian, Belarusian and Ukrainian , and a moderate degree of it in all modern Slavic languages, at least at the conversational level. Russian is written using a Cyrillic alphabet. The Russian alphabet consists of 33 letters. The following table gives their forms, along with IPA values for each letter's typical sound: Older letters of

4004-593: Is a post-posed definite article -to , -ta , -te similar to that existing in Bulgarian and Macedonian. In the Southern Russian dialects , instances of unstressed /e/ and /a/ following palatalized consonants and preceding a stressed syllable are not reduced to [ɪ] (as occurs in the Moscow dialect), being instead pronounced [a] in such positions (e.g. несл и is pronounced [nʲaˈslʲi] , not [nʲɪsˈlʲi] ) – this

4147-647: Is an East Slavic language belonging to the Balto-Slavic branch of the Indo-European language family . It is one of the four extant East Slavic languages, and is the native language of the Russians . It was the de facto and de jure official language of the former Soviet Union . Russian has remained an official language of the Russian Federation , Belarus , Kazakhstan , Kyrgyzstan , and Tajikistan , and

4290-425: Is apparent even in outward timing: the 1963 government decree launching the Tu-144 programme defined that the Tu-144 should fly in 1968; it first flew on the last day of 1968 (31 December) to fulfill government goals set five years earlier. Sixteen airworthy Tu-144 airplanes were built: Although its last commercial passenger flight was in 1978, production of the Tu-144 did not cease until 1983, when construction of

4433-485: Is being used less frequently by Russian-speaking typists in favor of the extension of Unicode character encoding , which fully incorporates the Russian alphabet. Free programs are available offering this Unicode extension, which allow users to type Russian characters, even on Western 'QWERTY' keyboards. The Russian language was first introduced to computing after the M-1 , and MESM models were produced in 1951. According to

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4576-613: Is called yakanye ( яканье ). Consonants include a fricative /ɣ/ , a semivowel /w⁓u̯/ and /x⁓xv⁓xw/ , whereas the Standard and Northern dialects have the consonants /ɡ/ , /v/ , and final /l/ and /f/ , respectively. The morphology features a palatalized final /tʲ/ in 3rd person forms of verbs (this is unpalatalized in the Standard and Northern dialects). During the Proto-Slavic (Common Slavic) times all Slavs spoke one mutually intelligible language or group of dialects. There

4719-563: Is more spoken than English. Sizable Russian-speaking communities also exist in North America, especially in large urban centers of the US and Canada, such as New York City , Philadelphia , Boston , Los Angeles , Nashville , San Francisco , Seattle , Spokane , Toronto , Calgary , Baltimore , Miami , Portland , Chicago , Denver , and Cleveland . In a number of locations they issue their own newspapers, and live in ethnic enclaves (especially

4862-564: Is odd") – чу́дно ( chúdno – "this is marvellous"), молоде́ц ( molodéts – "well done!") – мо́лодец ( mólodets – "fine young man"), узна́ю ( uznáyu – "I shall learn it") – узнаю́ ( uznayú – "I recognize it"), отреза́ть ( otrezát – "to be cutting") – отре́зать ( otrézat – "to have cut"); to indicate the proper pronunciation of uncommon words, especially personal and family names, like афе́ра ( aféra , "scandal, affair"), гу́ру ( gúru , "guru"), Гарси́я ( García ), Оле́ша ( Olésha ), Фе́рми ( Fermi ), and to show which

5005-402: Is recognized as a minority language under the Framework Convention for the Protection of National Minorities . Russian is the language of 9% of the population according to the World Factbook. Ethnologue cites Russian as the country's de facto working language. In China , Russian has no official status, but it is spoken by the small Russian communities in the northeastern Heilongjiang and

5148-569: Is sometimes considered to have played a significant role in the formation of modern Russian. Also, Russian has notable lexical similarities with Bulgarian due to a common Church Slavonic influence on both languages, but because of later interaction in the 19th and 20th centuries, Bulgarian grammar differs markedly from Russian. Over the course of centuries, the vocabulary and literary style of Russian have also been influenced by Western and Central European languages such as Greek, Latin , Polish , Dutch , German, French, Italian, and English, and to

5291-576: Is spoken by 14.2% of the population according to an undated estimate from the World Factbook. In 2005, Russian was the most widely taught foreign language in Mongolia, and was compulsory in Year 7 onward as a second foreign language in 2006. Around 1.5 million Israelis spoke Russian as of 2017. The Israeli press and websites regularly publish material in Russian and there are Russian newspapers, television stations, schools, and social media outlets based in

5434-659: Is still commonly used as a lingua franca in Ukraine , Moldova , the Caucasus , Central Asia , and to a lesser extent in the Baltic states and Israel . Russian has over 258 million total speakers worldwide. It is the most spoken native language in Europe , the most spoken Slavic language , as well as the most geographically widespread language of Eurasia . It is the world's seventh-most spoken language by number of native speakers , and

5577-518: Is the stressed word in a sentence, for example Ты́ съел печенье? ( Tý syel pechenye? – "Was it you who ate the cookie?") – Ты съе́л печенье? ( Ty syél pechenye? – "Did you eat the cookie?) – Ты съел пече́нье? ( Ty syel pechénye? "Was it the cookie you ate?"). Stress marks are mandatory in lexical dictionaries and books for children or Russian learners. The Russian syllable structure can be quite complex, with both initial and final consonant clusters of up to four consecutive sounds. Using

5720-416: The 1973 Paris Air Show Tu-144 crash . This conclusion was supported by some of the designers involved in the aircraft's development. Vadim Razumikhin wrote that the load factor experienced by the plane at the moment of the break-up was less than the design limit. If the stress tests had been conducted earlier, the disaster may have been averted. Eventually, the airframe was strengthened and the control system

5863-551: The 1973 oil crisis did not directly impact decision-making processes within the Soviet Union, the expansion of Soviet air travel in the late 1970s made the supply of aviation fuel a growth constraint, and it was obvious that potential Western buyers were heavily dissuaded by high fuel prices. By the late 1970s, Soviet promotional efforts shifted to the Ilyushin Il-86 , a more economically efficient jumbo jet that went on to become

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6006-402: The 1980 Moscow Olympic games , even perhaps for flights to Western Europe, given the aircraft's high visibility, but apparently the technical condition of the aircraft weighed against such re-introduction even for token flights. There were unprecedented Soviet requests for Western technological aid with the development of the Tu-144. In 1977, the USSR approached Lucas Industries , a designer of

6149-461: The 2011 Lithuanian census , Russian was the native language for 7.2% of the population. In Moldova , Russian was considered to be the language of interethnic communication under a Soviet-era law. On 21 January 2021, the Constitutional Court of Moldova declared the law unconstitutional and deprived Russian of the status of the language of interethnic communication. 50% of the population

6292-966: The Apollo–Soyuz mission, which first flew in 1975. In March 2013, Russian was found to be the second-most used language on websites after English. Russian was the language of 5.9% of all websites, slightly ahead of German and far behind English (54.7%). Russian was used not only on 89.8% of .ru sites, but also on 88.7% of sites with the former Soviet Union domain .su . Websites in former Soviet Union member states also used high levels of Russian: 79.0% in Ukraine, 86.9% in Belarus, 84.0% in Kazakhstan, 79.6% in Uzbekistan, 75.9% in Kyrgyzstan and 81.8% in Tajikistan. However, Russian

6435-684: The Brezhnev era the job of Premier of the Council of Ministers lost its rank as the second-most powerful in the USSR to the Chairman of the Presidium of the Supreme Soviet . Nikolai Podgorny 's dismissal as chief of state during 1977 had the effect of reducing Kosygin's role in day-to-day management of government activities as Brezhnev strengthened his control over the government apparatus. Kosygin resigned during 1980, to be succeeded by his First Deputy Chairman Nikolai Tikhonov . After five-years service, by

6578-592: The Communist revolution , as was duly noted in Soviet officials' speeches delivered at the airport before the inaugural flight – whether the aircraft was actually ready for passenger service was deemed of secondary importance. Even the outward details of the inaugural Tu-144 flight betrayed the haste of its introduction into service: several ceiling panels were ajar, service trays stuck, window shades dropped without being pulled, reading lights did not work, not all toilets worked and

6721-413: The Constitution of Tajikistan and is permitted in official documentation. 28% of the population was fluent in Russian in 2006, and 7% used it as the main language with family, friends or at work. The World Factbook notes that Russian is widely used in government and business. In Turkmenistan , Russian lost its status as the official lingua franca in 1996. Among 12% of the population who grew up in

6864-642: The Ministry of Foreign Affairs , and Andrei Grechko and Dmitriy Ustinov , the defence ministers . USSR state committees were different from the ministries in that a state committee was primarily responsible for several parts of government as opposed to the one specific topic for which a ministry was solely responsible. Therefore, many state committees had jurisdiction over certain common activities performed by ministries such as research and development, standardisation, planning, building construction, state security, publishing, archiving and so on. The distinction between

7007-577: The Premier of the Council of Ministers of the Uzbek Soviet Socialist Republic , if the Presidium still functioned as an inner policy-making body. The answer he received was yes, and that the Presidium consisted of the Premier , two first deputy chairmen , four deputy chairmen , the Minister of Finance and the Minister of Agriculture . During the 1970s Soviet authorities officially defined

7150-575: The Ukrainian language in more than 30 spheres of public life: in particular in public administration , media, education, science, culture, advertising, services . The law does not regulate private communication. A poll conducted in March 2022 by RATING in the territory controlled by Ukraine found that 83% of the respondents believe that Ukrainian should be the only state language of Ukraine. This opinion dominates in all macro-regions, age and language groups. On

7293-694: The United States Census , in 2007 Russian was the primary language spoken in the homes of over 850,000 individuals living in the United States. Russian is one of the official languages (or has similar status and interpretation must be provided into Russian) of the following: The Russian language is also one of two official languages aboard the International Space Station – NASA astronauts who serve alongside Russian cosmonauts usually take Russian language courses. This practice goes back to

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7436-567: The raw material . Cracks formed at the defects at load levels below that which the part was expected to withstand. Once a crack started to grow, it spread quickly over many metres, with no crack-arresting design feature to stop it. In 1976, during repeat-load and static testing at TsAGI (Russia's Central Aerohydrodynamic Institute ), a Tu-144S airframe cracked at 70% of the design flight load with cracks running many metres in both directions from their origin. Two Tu-144S airframes suffered structural failures during laboratory testing just prior to

7579-461: The 20th century, Russian was a mandatory language taught in the schools of the members of the old Warsaw Pact and in other countries that used to be satellites of the USSR. According to the Eurobarometer 2005 survey, fluency in Russian remains fairly high (20–40%) in some countries, in particular former Warsaw Pact countries. In Armenia , Russian has no official status, but it is recognized as

7722-465: The Belarusian society the Russian language prevails, so according to the 2019 census 6,718,557 people (71.4% of the total population) stated that they speak Russian at home, for ethnic Belarusians this share is 61.4%, for Russians — 97.2%, for Ukrainians — 89.0%, for Poles — 52.4%, and for Jews — 96.6%; 2,447,764 people (26.0% of the total population) stated that the language they usually speak at home

7865-471: The Central Committee at the 25th Party Congress . Nikita Khrushchev 's attempt during the late 1950s to decentralise decision-making by reforming the chain of command that was in use since the early times of the Council of People's Commissars to manage local industries and enterprises resulted in major reorganisation of the USSR ministries. A large number of ministries were eliminated and replaced by

8008-508: The Cold War period, the Soviet Union was intent on not just matching, but surpassing Western advancements, particularly in aerospace technology. The idea of the West getting ahead and leaving the Soviet Union behind was unthinkable. The directive from Nikita Khrushchev , the leader of the Soviet Union at that time, was clear: not only prevent the West from getting ahead, but also compete fiercely, even to

8151-682: The Communist Party's Politburo . Article 132 of the 1977 Soviet Constitution and Article 17 of the 1978 USSR Law that regulated the activities of the Soviet Government state that the Premier, the First Deputy, Deputy Chairmen, and other members of the USSR Council of Ministers were members of the Presidium. Regardless, the actual names of its members (other than the Premier) were never disclosed to

8294-467: The Concorde (M2.15 vs. M2.04). Concorde used an electronic engine control package from Lucas , which Tupolev was not permitted to purchase for the Tu-144 as it could also be used on military aircraft. Concorde's designers used fuel as coolant for the cabin air conditioning and for the hydraulic system (see Concorde for details). Tupolev also used fuel/hydraulic heat exchangers , but used cooling turbines for

8437-529: The Council of Ministers during March 1946. At the same time The People's Commissariats were transformed into Ministries . Joseph Stalin 's death began a power struggle within the Soviet government between the Government apparatus managed by Georgy Malenkov as Premier, and the Party apparatus managed by Nikita Khrushchev as General Secretary (a job which was named First Secretary from 1953 until 1966). Malenkov lost

8580-409: The Council of Ministers was the collective decision-making body of government. The Chairman of the Council of Ministers, his First Deputy Chairmen , Deputy Chairmen , ministers, State Committee chairmen, Soviet Republican Council of Ministers chairmen and other unspecified personnel were members of the Presidium . The Council of People's Commissars , the Soviet Government , was transformed into

8723-519: The Great and developed from the Moscow ( Middle or Central Russian ) dialect substratum under the influence of some of the previous century's Russian chancery language. Prior to the Bolshevik Revolution , the spoken form of the Russian language was that of the nobility and the urban bourgeoisie. Russian peasants, the great majority of the population, continued to speak in their own dialects. However,

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8866-578: The Institute of Russian Language of the Russian Academy of Sciences, an optional acute accent ( знак ударения ) may, and sometimes should, be used to mark stress . For example, it is used to distinguish between otherwise identical words, especially when context does not make it obvious: замо́к ( zamók – "lock") – за́мок ( zámok – "castle"), сто́ящий ( stóyashchy – "worthwhile") – стоя́щий ( stoyáshchy – "standing"), чудно́ ( chudnó – "this

9009-515: The Middle East and North Africa – 1.3 million, Sub-Saharan Africa – 0.1 million, Latin America – 0.2 million, U.S., Canada , Australia, and New Zealand – 4.1 million speakers. Therefore, the Russian language is the seventh-largest in the world by the number of speakers , after English, Mandarin, Hindi -Urdu, Spanish, French, Arabic, and Portuguese. Russian is one of the six official languages of

9152-524: The Ministry to make significant long-term investments. Moon concluded that economic efficiency alone would not have doomed the Tu-144 altogether; continuation of token flights for reasons of political prestige would have been possible, if only the aircraft itself would have allowed for it, but it did not. The Tu-144 was to a large extent intended to be, and trumpeted as, a symbol of Soviet technological prestige and superiority. Russian language Russian

9295-436: The Presidium's responsibilities and membership. The 1977 Soviet Constitution referred to the Presidium as a "permanent" organ of the Council of Ministers, which was established to secure good economic leadership and assume other administrative responsibilities. The few documents published provide evidence that the Presidium emphasised economic planning and decision-making as well as making important decisions lesser than those of

9438-807: The Russian alphabet include ⟨ ѣ ⟩ , which merged to ⟨ е ⟩ ( /je/ or /ʲe/ ); ⟨ і ⟩ and ⟨ ѵ ⟩ , which both merged to ⟨ и ⟩ ( /i/ ); ⟨ ѳ ⟩ , which merged to ⟨ ф ⟩ ( /f/ ); ⟨ ѫ ⟩ , which merged to ⟨ у ⟩ ( /u/ ); ⟨ ѭ ⟩ , which merged to ⟨ ю ⟩ ( /ju/ or /ʲu/ ); and ⟨ ѧ ⟩ and ⟨ ѩ ⟩ , which later were graphically reshaped into ⟨ я ⟩ and merged phonetically to /ja/ or /ʲa/ . While these older letters have been abandoned at one time or another, they may be used in this and related articles. The yers ⟨ ъ ⟩ and ⟨ ь ⟩ originally indicated

9581-458: The Russian principalities before and especially during Mongol rule. This strengthened dialectal differences, and for a while, prevented the emergence of a standardized national language. The formation of the unified and centralized Russian state in the 15th and 16th centuries, and the gradual re-emergence of a common political, economic, and cultural space created the need for a common standard language. The initial impulse for standardization came from

9724-461: The Soviet Buran space shuttle. In 1986–1988 Tu-144D No. 77114, built in 1981, was used for medical and biological research of high-altitude atmosphere radiological conditions. Further research was planned but not completed, due to lack of funding. In the early 1990s, Judith de Paul, and her company IBP Aerospace brokered an agreement with Tupolev, NASA , Rockwell and later Boeing . They offered

9867-439: The Soviet economy was in 1965, with Premier Alexei Kosygin initiating a new economic reform aimed at giving enterprises more economic freedom and incentives to be profitable. Certain major ministries had more influence over the national and international politics of the USSR, with their ministers being full members of Politburo. Among them were notables such as Leon Trotsky , Vyacheslav Molotov and Andrei Gromyko , heads of

10010-405: The Soviet era can speak Russian, other generations of citizens that do not have any knowledge of Russian. Primary and secondary education by Russian is almost non-existent. In Uzbekistan , Russian is the language of inter-ethnic communication. It has some official roles, being permitted in official documentation and is the lingua franca of the country and the language of the elite. Russian

10153-405: The Tu-144 could still be used for domestic and regional flights. Aeroflot, the flag carrier of the Soviet Union, had an extensive network of interconnected airfields and increasing international reach, with hopes of extending flights to Sydney, Australia. Initial estimates suggested that 20 Tu-144s would suffice for Aeroflot's domestic and international needs. Given the geopolitical climate during

10296-506: The Tu-144 entering passenger service. The problem, discovered in 1976, may have been known prior to this testing; a large crack was discovered in the airframe of the prototype Tu-144 (aircraft 68001) during a stopover in Warsaw following its appearance at the 1971 Paris Air Show. Polish sources say the crack was discovered after the aircraft made an emergency landing due to the failure of both left-hand engines; however, an Aeroflot spokesperson denied

10439-551: The Union. However, the most important decisions were made by joint declarations with the Central Committee of the Communist Party of Soviet Union (CPSU), which was de facto more powerful than the Council of Ministers. During 1991 the Council of Ministers was dissolved, and replaced by the newly established " Cabinet of Ministers ", which itself disappeared only months later when the USSR

10582-460: The United Nations. Education in Russian is still a popular choice for both Russian as a second language (RSL) and native speakers in Russia, and in many former Soviet republics. Russian is still seen as an important language for children to learn in most of the former Soviet republics. In Belarus , Russian is a second state language alongside Belarusian per the Constitution of Belarus . 77% of

10725-426: The aircraft would have to land on the right gear alone, at a landing speed of over 300 km/h (190 mph; 160 kn). Due to expected political fallout, Soviet leader Leonid Brezhnev was personally notified of what was going on in the air. With the accumulated failures, an alarm siren went off immediately after takeoff, with sound and volume similar to that of a civil defence warning. The crew could not figure

10868-552: The airframe to withstand damage, firefighting equipment, including warning devices and lightning protection, emergency power supply, and landing gear spray guards (a.k.a. water deflectors or " mud flaps " that increase engine efficiency when taking off from wet airstrips). These requests were denied after the British government vetoed them on the ground that the same technologies, if transferred, could be also employed in Soviet bombers. Soviet approaches were also reported in British tabloids at

11011-403: The broader sense of expanding the use of Russian alongside or in favour of other languages. The current standard form of Russian is generally regarded as the modern Russian literary language ( современный русский литературный язык – "sovremenny russky literaturny yazyk"). It arose at the beginning of the 18th century with the modernization reforms of the Russian state under the rule of Peter

11154-453: The cabin air. The Tu-144 prototype was a full-scale demonstrator aircraft with the very different production aircraft being developed in parallel. The MiG-21I (1968; Izdeliye 21–11; "Analog") I = Imitator ("Simulator") was a testbed for the wing design of the Tu-144 but came too late to provide inputs for the first prototype. The findings of the MiG-21I led to the completely redesigned wing of

11297-415: The cockpit and increased lift at low speeds. Moving the elevons downward in a delta-wing aircraft increases the lift, but also pitches its nose downward. The canards cancel out this nose-downwards moment , thus reducing the landing speed of the production Tu-144s to 315–333 km/h (196–207 mph; 170–180 kn). Along with early Tu-134s , the Tu-144 was one of the last commercial aircraft with

11440-453: The condition of the aircraft and make a joint decision on whether it could be released into flight. Subsequently, flight cancellations became less common, as several Tu-144s were docked at Moscow's Domodedovo International Airport . Tu-144 pilot Aleksandr Larin remembers a troublesome flight around 25 January 1978. The flight with passengers suffered the failure of 22 to 24 onboard systems. Seven to eight systems failed before takeoff, but given

11583-597: The council's relationships with subordinate organs were defined in the Soviet constitution by the Law on the Council of Ministers of the USSR . During 1946, the All-Union Council of People's Commissars became the Council of Ministers ( Russian : Совет Министров , tr.: Sovet Ministrov SSSR ), whilst People's Commissars and People's Commissariats became Ministers and Ministries. Ministers were important for ordinary decision-making, with 73 percent of them elected full-members of

11726-505: The country's flagship airliner. Moon notes that in 1976, Aeroflot was promoting the Il-86 over the Tu-144, despite the latter's incipient and long-awaited entry into service. G.A. Cheryomukhin, an aerodynamics engineer who took part in the design and certification of Tu-144, wrote that the Ministry of Civil Aviation was concerned that the continuation and expansion of the SST's operation would have forced

11869-562: The country. There is an Israeli TV channel mainly broadcasting in Russian with Israel Plus . See also Russian language in Israel . Russian is also spoken as a second language by a small number of people in Afghanistan . In Vietnam , Russian has been added in the elementary curriculum along with Chinese and Japanese and were named as "first foreign languages" for Vietnamese students to learn, on equal footing with English. The Russian language

12012-440: The damage and disputed the circumstances of the landing. Later the same year, a test airframe was subjected to a test simulating the temperatures and pressures occurring during a flight. High skin temperatures of 110–130 °C (230–270 °F) were caused by kinetic heating when the boundary layer air reached 150–180 °C (300–360 °F) during cruise. The Tu-144 was placed in an environmental chamber and heated to simulate

12155-523: The decrees and resolutions issued by the All-Union Council of Ministers. The All-Union Council also had the power to suspend all mandates and decrees issued by itself or organisations subordinate to it. The Council coordinated and directed the work of the union republics and union ministries, state committees and other organs subordinate to it. The competence of the Council of Ministers and its Presidium with respect to their procedures and activities and

12298-460: The design was approved by the Council of Ministers . The plan called for five flying prototypes to be built in four years, with the first aircraft to be ready in 1966. Despite the similarity in appearance of the Tu-144 to the Anglo-French supersonic aircraft (which earned it the nickname "Concordski"), there were significant differences between the two aircraft. The Tu-144 is bigger and faster than

12441-436: The engine control system for Concorde, requesting help with the design of the electronic management system of the Tu-144 engines, and also asked BAC-Aérospatiale for assistance in improving the Tu-144 air intakes. (The design of air intakes' variable geometry and their control system was one of the most intricate features of Concorde, contributing to its fuel efficiency. Over half of the wind-tunnel time during Concorde development

12584-467: The extent of leapfrogging their technological advancements, if necessary. The aircraft was seen as a formidable challenge to the United States' dominance in the field of civil aviation. The Soviet government published the concept of the Tu-144 in an article in the January 1962 issue of the magazine Technology of Air Transport . The air ministry started development of the Tu-144 on 26 July 1963, 10 days after

12727-413: The factory and the industrial plant their local peasant dialects with their phonetics, grammar, and vocabulary, and the very process of recruiting workers from peasants and the mobility of the worker population generate another process: the liquidation of peasant inheritance by way of leveling the particulars of local dialects. On the ruins of peasant multilingual, in the context of developing heavy industry,

12870-404: The final airframe was stopped and left partially complete. The last production aircraft, Tu-144D number 77116, was not completed and was left derelict for many years on Voronezh East airfield . There was at least one ground test airframe for static testing in parallel with the development of prototype 68001. The introduction of the Tu-144 into passenger service was timed to the 60th anniversary of

13013-456: The final blow, which resulted in the cancellation of the project by the Ministry of Aviation Industry and the Ministry of Civil Aviation. One of the Tu-144Ds (77114, a.k.a. aircraft 101) suffered a crack across the bottom panel of its wing. Global trends facilitated the transition of jet transportation from a luxury available only to the elite, to a widespread form of mass transportation. Although

13156-451: The final reading amendments that state that all schools and kindergartens in the country are to transition to education in Latvian . From 2025, all children will be taught in Latvian only. On 28 September 2023, Latvian deputies approved The National Security Concept, according to which from 1 January 2026, all content created by Latvian public media (including LSM ) should be only in Latvian or

13299-479: The flight schedule. The most frequent sources of trouble were the flight instruments, navigation gear, radios, and autopilot . After the inaugural flight, two subsequent flights during the next two weeks were cancelled and the third flight rescheduled. The official reason given by Aeroflot for cancellation was bad weather at Alma-Ata; however when the journalist called the Aeroflot office in Alma-Ata about local weather,

13442-449: The following aircraft. While both Concorde and the Tu-144 prototype had ogival delta wings, the Tu-144's wing lacked Concorde's conical camber . Production Tu-144s replaced this wing with a double delta wing including spanwise and chordwise camber. They also added two small retractable surfaces called a moustache canard , with fixed double-slotted leading-edge slats and retractable double-slotted flaps . These were fitted just behind

13585-460: The fuel tanks. A problem for passengers was the very high noise level inside the cabin, measuring at least 90–95 dB on average. The noise came from the engines; unlike Concorde, it could only sustain supersonic speeds using afterburners continuously. In addition, the active heat insulation system used for the air conditioning, which used the flow of spent cabin air, was described as excessively noisy. Passengers seated next to each other could have

13728-617: The generation of immigrants who started arriving in the early 1960s). Only about 25% of them are ethnic Russians, however. Before the dissolution of the Soviet Union , the overwhelming majority of Russophones in Brighton Beach, Brooklyn in New York City were Russian-speaking Jews. Afterward, the influx from the countries of the former Soviet Union changed the statistics somewhat, with ethnic Russians and Ukrainians immigrating along with some more Russian Jews and Central Asians. According to

13871-480: The government bureaucracy for the lack of a reliable tool of communication in administrative, legal, and judicial affairs became an obvious practical problem. The earliest attempts at standardizing Russian were made based on the so-called Moscow official or chancery language, during the 15th to 17th centuries. Since then, the trend of language policy in Russia has been standardization in both the restricted sense of reducing dialectical barriers between ethnic Russians, and

14014-411: The large number of foreign TV and radio journalists and also other foreign notables aboard the flight, it was decided to proceed with the flight to avoid the embarrassment of cancellation. After takeoff, failures continued to multiply. While the aircraft was supersonic en route to the destination airport, Tupolev bureau's crisis centre predicted that the front and left landing gear would not extend and that

14157-571: The maximum speed at Mach 2.2. 15% by weight was titanium and 23% non-metallic materials. Titanium or stainless steel were used for the leading edges, elevons, rudder and the rear fuselage engine-exhaust heat shield . SSTs for M2.2 had been designed in the Soviet Union before Tupolev was tasked with developing one. Design studies for the Myasishchev SST had shown that a cruise specific fuel consumption (SFC) of not more than 1.2 kg/kgp hr would be required. The only engine available in time with

14300-452: The more efficient Kolesov RD-36-51 turbojet engines, which also increased the maximum cruising speed to Mach 2.15. There were only 103 scheduled flights before the Tu-144 was removed from commercial service. During 102 flights and 181 hours of freight and passenger flight time, the Tu-144S suffered more than 226 failures; 80 of them occurred in flight and 80 of them were severe enough to affect

14443-516: The northwestern Xinjiang Uyghur Autonomous Region . Russian was also the main foreign language taught in school in China between 1949 and 1964. In Kazakhstan , Russian is not a state language, but according to article 7 of the Constitution of Kazakhstan its usage enjoys equal status to that of the Kazakh language in state and local administration. The 2009 census reported that 10,309,500 people, or 84.8% of

14586-433: The office said that the weather there was perfect and one aircraft had already arrived that morning. Subsequent and significant documented Tu-144 failures included insufficient cabin pressurisation in flight on 27 December 1977, a landing gear switch fault on 29 January 1978 that indicated that the gear was lowered when it was in fact retracted, and engine-exhaust duct overheating causing the flight to be aborted and returned to

14729-515: The other hand, before the war, almost a quarter of Ukrainians were in favour of granting Russian the status of the state language, while after the beginning of Russia's invasion the support for the idea dropped to just 7%. In peacetime, the idea of raising the status of Russian was traditionally supported by residents of the south and east . But even in these regions, only a third of the respondents were in favour, and after Russia's full-scale invasion , their number dropped by almost half. According to

14872-455: The other three languages in the East Slavic branch. In many places in eastern and southern Ukraine and throughout Belarus, these languages are spoken interchangeably, and in certain areas traditional bilingualism resulted in language mixtures such as Surzhyk in eastern Ukraine and Trasianka in Belarus. An East Slavic Old Novgorod dialect , although it vanished during the 15th or 16th century,

15015-446: The parliament approved a bill to close up all Russian language schools and kindergartens by the school year. The transition to only Estonian language schools and kindergartens will start in the 2024-2025 school year. In Latvia , Russian is officially considered a foreign language. 55% of the population was fluent in Russian in 2006, and 26% used it as the main language with family, friends, or at work. On 18 February 2012, Latvia held

15158-453: The peasants' speech was never systematically studied, as it was generally regarded by philologists as simply a source of folklore and an object of curiosity. This was acknowledged by the noted Russian dialectologist Nikolai Karinsky , who toward the end of his life wrote: "Scholars of Russian dialects mostly studied phonetics and morphology. Some scholars and collectors compiled local dictionaries. We have almost no studies of lexical material or

15301-639: The period between convocations of the Supreme Soviet, the Council of Ministers was accountable to the Presidium of the Supreme Soviet and regularly reported to the Supreme Soviet on its work, as well as being tasked with resolving all state administrative duties in the jurisdiction of the USSR which were not the responsibility of the Supreme Soviet or the Presidium. Within its limits, the Council of Ministers had responsibility for: The Council of Ministers could also issue decrees and resolutions and later verify their execution. All organisations were obliged to obey

15444-455: The population aged 15 and above, could read and write well in Russian, and understand the spoken language. In October 2023, Kazakhstan drafted a media law aimed at increasing the use of the Kazakh language over Russian, the law stipulates that the share of the state language on television and radio should increase from 50% to 70%, at a rate of 5% per year, starting in 2025. In Kyrgyzstan , Russian

15587-418: The population was fluent in Russian in 2006, and 67% used it as the main language with family, friends, or at work. According to the 2019 Belarusian census , out of 9,413,446 inhabitants of the country, 5,094,928 (54.1% of the total population) named Belarusian as their native language, with 61.2% of ethnic Belarusians and 54.5% of ethnic Poles declaring Belarusian as their native language. In everyday life in

15730-491: The power struggle, and during 1955 he was demoted from his office as Chairman of the Council of Ministers. He was succeeded in his job by Nikolai Bulganin , who was dismissed and replaced by Khrushchev because of his assistance to the Anti-Party Group , which had tried to oust Khrushchev during 1957. After Khrushchev's dismissal from power, the collective leadership organized by Leonid Brezhnev and Alexei Kosygin had

15873-475: The pronunciation of ultra-short or reduced /ŭ/ , /ĭ/ . Because of many technical restrictions in computing and also because of the unavailability of Cyrillic keyboards abroad, Russian is often transliterated using the Latin alphabet. For example, мороз ('frost') is transliterated moroz , and мышь ('mouse'), mysh or myš' . Once commonly used by the majority of those living outside Russia, transliteration

16016-466: The proper pronunciation of uncommon words or names. Russian is an East Slavic language of the wider Indo-European family . It is a descendant of Old East Slavic , a language used in Kievan Rus' , which was a loose conglomerate of East Slavic tribes from the late 9th to the mid-13th centuries. From the point of view of spoken language , its closest relatives are Ukrainian , Belarusian , and Rusyn ,

16159-575: The required thrust and suitable for testing and perfecting the aircraft was the afterburning Kuznetsov NK-144 turbofan with a cruise SFC of 1.58 kg/kgp hr. Development of an alternative engine to meet the SFC requirement, a non-afterburning turbojet, the Kolesov RD-36-51 A, began in 1964. It took a long time for this engine to achieve acceptable SFC and reliability. In the meantime the NK-144 high SFC gave

16302-491: The respondents), while according to the 2002 census – 142.6 million people (99.2% of the respondents). In Ukraine , Russian is a significant minority language. According to estimates from Demoskop Weekly, in 2004 there were 14,400,000 native speakers of Russian in the country, and 29 million active speakers. 65% of the population was fluent in Russian in 2006, and 38% used it as the main language with family, friends, or at work. On 5 September 2017, Ukraine's Parliament passed

16445-478: The retirement of Concorde, there was renewed interest from several wealthy individuals who wanted to use the Tu-144LL for a transatlantic record attempt, despite the high cost of a flight readiness overhaul even if military authorities would authorize the use of NK-321 engines outside Russian Federation airspace. Only one commercial route, Moscow to Alma-Ata (now Almaty ), was ever used and flights were limited to one

16588-466: The rules established by Leonid Brezhnev , Yuri Andropov and Konstantin Chernenko , Tikhonov was compelled to retire by Mikhail Gorbachev on 27 September 1985. Tikhonov was succeeded by Nikolai Ryzhkov . Ryzhkov was a half-hearted reformer, and was skeptical about de-nationalisation and the monetary reform of 1989; however, he did endorse the creation of a "regulated market" economy. During 1991 Ryzhkov

16731-451: The skin getting hot quickly, during acceleration to cruising speed, while the underlying structure took a while to reach its equilibrium temperature. This thermal effect caused internal stresses and the situation was reversed while slowing down and descending. The pressure in the cabin, which caused additional stresses, was changed at the same time as the skin heating to simulate climbing to cruise altitude and then descending. Repeatedly cycling

16874-529: The state committees and the Chairmen of the Council of Ministers of the Soviet Republics . The Premier of the Council of Ministers could also recommend people who he found suitable for membership of the Council of Ministers to the Supreme Soviet . The Council of Ministers ended its functions on each first-convocation of a newly elected Supreme Soviet. Responsible and accountable to the Supreme Soviet and during

17017-675: The survey carried out by RATING in August 2023 in the territory controlled by Ukraine and among the refugees, almost 60% of the polled usually speak Ukrainian at home, about 30% – Ukrainian and Russian, only 9% – Russian. Since March 2022, the use of Russian in everyday life has been noticeably decreasing. For 82% of respondents, Ukrainian is their mother tongue, and for 16%, Russian is their mother tongue. IDPs and refugees living abroad are more likely to use both languages for communication or speak Russian. Nevertheless, more than 70% of IDPs and refugees consider Ukrainian to be their native language. In

17160-459: The syntax of Russian dialects." After 1917, Marxist linguists had no interest in the multiplicity of peasant dialects and regarded their language as a relic of the rapidly disappearing past that was not worthy of scholarly attention. Nakhimovsky quotes the Soviet academicians A.M Ivanov and L.P Yakubinsky, writing in 1930: The language of peasants has a motley diversity inherited from feudalism. On its way to becoming proletariat peasantry brings to

17303-410: The takeoff airport on 14 March 1978. Additionally, a metal fatigue problem was discovered in the tip of the aircraft's vertical stabilizer; this was mitigated by adding a titanium doubler plate. Aleksey Tupolev, Tu-144 chief designer, and two USSR vice-ministers (of aviation industry and of civil aviation) had to be personally present at Domodedovo airport before each scheduled Tu-144 departure to review

17446-462: The temperature and pressure, as happened with the aircraft in service, caused fatigue damage and the airframe failed in a similar way to that of the TsAGI load testing. According to Iosif Fridlyander  [ ru ] , an aerospace aluminium and beryllium alloys expert, the Tu-144 design allowed a higher incidence of defects in the alloy structure, leading to the fatal in-air breakup of the aircraft in

17589-496: The time, such as the Daily Mirror . On 31 August 1980, Tu-144D (77113) suffered an uncontained compressor disc failure in supersonic flight which damaged part of the airframe structure and systems. The crew was able to perform an emergency landing at Engels-2 strategic bomber base. On 12 November 1981, a Tu-144D's RD-36-51 engine was destroyed during bench tests, leading to a temporary suspension of all Tu-144D flights. It became

17732-770: The two. Others divide the language into three groupings, Northern , Central (or Middle), and Southern , with Moscow lying in the Central region. The Northern Russian dialects and those spoken along the Volga River typically pronounce unstressed /o/ clearly, a phenomenon called okanye ( оканье ). Besides the absence of vowel reduction, some dialects have high or diphthongal /e⁓i̯ɛ/ in place of Proto-Slavic  * ě and /o⁓u̯ɔ/ in stressed closed syllables (as in Ukrainian) instead of Standard Russian /e/ and /o/ , respectively. Another Northern dialectal morphological feature

17875-506: The use of the language has some presence in certain areas. A large part of the population, especially the older generations, can speak Russian as a foreign language. However, English has replaced Russian as lingua franca in Lithuania and around 80% of young people speak English as their first foreign language. In contrast to the other two Baltic states, Lithuania has a relatively small Russian-speaking minority (5.0% as of 2008). According to

18018-682: The world's ninth-most spoken language by total number of speakers . Russian is one of two official languages aboard the International Space Station , one of the six official languages of the United Nations , as well as the fourth most widely used language on the Internet . Russian is written using the Russian alphabet of the Cyrillic script ; it distinguishes between consonant phonemes with palatal secondary articulation and those without—the so-called "soft" and "hard" sounds. Almost every consonant has

18161-403: The world's first commercial transport to exceed Mach 2. Reliability and developmental issues restricted the viability of the Tu-144 for regular use; these factors, together with repercussions of the 1973 Paris Air Show Tu-144 crash , projections of high operating costs, and rising fuel prices and environmental concerns outside the Soviet Union, caused foreign customer interest to wane. The Tu-144

18304-737: Was a product of the Tupolev Design Bureau, an OKB headed by aeronautics pioneer Aleksey Tupolev , and 16 aircraft were manufactured by the Voronezh Aircraft Production Association in Voronezh . The Tu-144 conducted 102 commercial flights , of which only 55 carried passengers, at an average service altitude of 16,000 metres (52,000 ft) and cruised at a speed of around 2,200 kilometres per hour (1,400 mph) ( Mach 2). The Tu-144 first went supersonic on 5 June 1969, four months before Concorde, and on 26 May 1970 became

18447-451: Was described as an internal organ of the government. Churchward noted in his 1975 book that it was impossible to determine the importance of the Presidium in comparison with other organs of the Council of Ministers. British historian Leonard Schapiro , writes in his book The Government and Politics of the Soviet Union , that the Presidium worked somewhat as an "Inner Cabinet" for policy-making. Historians Hough and Fainsod believed there to be

18590-456: Was disbanded . There were seven Chairmen of the Council of Ministers between 1946 and early 1991, who were in effect the Premier of the USSR . After Nikita Khrushchev 's dismissal from the jobs of First Secretary of the Communist Party and Premier, to be replaced by Leonid Brezhnev and Alexei Kosygin respectively, a Central Committee plenum forbade any person to hold the positions of First Secretary and Premier concurrently. The Presidium of

18733-405: Was first introduced in North America when Russian explorers voyaged into Alaska and claimed it for Russia during the 18th century. Although most Russian colonists left after the United States bought the land in 1867, a handful stayed and preserved the Russian language in this region to this day, although only a few elderly speakers of this unique dialect are left. In Nikolaevsk, Alaska , Russian

18876-655: Was fitted with the Kuznetsov NK-144 A turbofan to address lack of take-off thrust and surge margin. SFC at M2.0 was 1.81 kg/kgp hr. A further improvement, the NK-144V, achieved the required SFC, but too late to influence the decision to use the Kolesov RD-36-51 . The Tu-144D , of which five were produced (plus one uncompleted), was powered by the Kolesov RD-36-51 turbojet with an SFC of 1.22 kg/kgp hr. The range with full payload increased to 5,330 km compared to 6,470 km for Concorde. Plans for an aircraft with

19019-421: Was fluent in Russian in 2006, and 19% used it as the main language with family, friends, or at work. According to the 2014 Moldovan census , Russians accounted for 4.1% of Moldova's population, 9.4% of the population declared Russian as their native language, and 14.5% said they usually spoke Russian. According to the 2010 census in Russia , Russian language skills were indicated by 138 million people (99.4% of

19162-414: Was introduced into commercial service with Aeroflot between Moscow and Alma-Ata on 26 December 1975 and starting 1 November 1977 passenger flights began; it was withdrawn less than seven months later after a new Tu-144 variant crash-landed during a test flight on 23 May 1978. The Tu-144 remained in commercial service as a cargo aircraft until the cancellation of the Tu-144 program in 1983. The Tu-144

19305-625: Was issued by the USSR Gosaviaregister on 29 October 1977. The passenger service ran a semi-scheduled service until the first Tu-144D experienced an in-flight failure during a pre-delivery test flight, crash-landing on 23 May 1978 with two crew fatalities. The Tu-144's 55th and last scheduled passenger flight occurred on 1 June 1978. An Aeroflot freight-only service recommenced using the new production variant Tu-144D ("D" for Dal'nyaya – "long range") aircraft on 23 June 1979, including longer routes from Moscow to Khabarovsk made possible by

19448-575: Was later used by the Soviet space program to train pilots of the Buran spacecraft, and by NASA for supersonic research until 1999. The Tu-144 made its final flight on 26 June 1999 and surviving aircraft were put on display in Russia, the former Soviet Union and Germany, or into storage. Given the vast size of the Soviet Union, supersonic travel was seen as economically feasible, especially for government employees travelling between Moscow and Siberian cities. Flying

19591-473: Was modified to prevent overstressing the aircraft. Tu-144 suffered from a rush in the design process to the detriment of thoroughness and quality. According to Concorde technical flight manager Brian Calvert, "the rush to get [Tu-144] airborne exacted a heavy penalty later". Concorde's first flight was originally scheduled for February 1968, but was pushed back several times until March 1969 in order to iron out problems and test components more thoroughly. The rush

19734-436: Was not certain that it could be cooled adequately during afterburner operation. The RD-36-51 had no afterburner. The aircraft was assembled from parts machined from large slabs, many over 19 m (62 ft) long and 0.64 to 1.27 m (2.1 to 4.2 ft) wide. While at the time, this approach was heralded as an advanced feature of the design, it turned out that finished parts contained defects which had not been detected in

19877-440: Was required to attenuate intake distortion. The intakes were to be shortened by 10 feet on the projected Tu-144M . The Kolesov RD-36-51 had an unusual translating plug nozzle as an alternative to a variable con-di nozzle, either of which give the variable area ratio required for the range of nozzle pressures which come from low inlet ram at low speeds to high at Mach 2. A plug nozzle was studied for Concorde but rejected as it

20020-608: Was spent on the design of air intakes and their control system.) In late 1978, the USSR requested a wide range of Concorde technologies, evidently reflecting the broad spectrum of unresolved Tu-144 technical issues. The list included de-icing equipment for the leading edge of the air intakes, fuel-system pipes and devices to improve durability of these pipes, drain valves for fuel tanks, fireproof paints, navigation and piloting equipment, systems and techniques for acoustical loading of airframe and controls (to test against acoustic fatigue caused by high jet-noise environment), ways to reinforce

20163-461: Was succeeded as Premier by Valentin Pavlov . The Council of Ministers was dissolved and replaced with the newly established Cabinet of Ministers . The Council of Ministers was the manager of the government's executive part. Formed at a joint meeting of the Soviet of the Union and the Soviet of Nationalities , it consisted of a Premier , several First Deputies , Deputies , ministers , Chairmen of

20306-476: Was the only practical alternative to week-long rail journeys, and supersonic transport could significantly cut travel times. While the idea of SSTs was controversial in the West due to noise and environmental pollution concerns, the Soviet Union planned to continue with their development, largely for its long Siberian and Central Asian routes. With ample airspace, flight corridors were likely to avoid built-up areas. Even if international landing rights were not granted,

20449-402: Was the sixth-most used language on the top 1,000 sites, behind English, Chinese, French, German, and Japanese. Despite leveling after 1900, especially in matters of vocabulary and phonetics, a number of dialects still exist in Russia. Some linguists divide the dialects of Russian into two primary regional groupings, "Northern" and "Southern", with Moscow lying on the zone of transition between

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