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123-466: The North American B-45 Tornado is an early American jet bomber designed and manufactured by aircraft company North American Aviation . It has the distinction of being the first operational jet bomber to enter service with the United States Air Force (USAF), as well as the first multiengine jet bomber to be refueled in midair . The B-45 originated from a wartime initiative launched by

246-651: A renewed federation , an attempted coup against Gorbachev by hardline communists prompted the largest republics—Ukraine, Russia, and Belarus—to secede. On December 26, Gorbachev officially recognized the dissolution of the Soviet Union . Boris Yeltsin , the leader of the RSFSR, oversaw its reconstitution into the Russian Federation , which became the Soviet Union's successor state; all other republics emerged as fully independent post-Soviet states . During its existence,

369-580: A closer relationship with France and Britain. In 1939, half a year after the Munich Agreement , the USSR attempted to form an anti-Nazi alliance with France and Britain. Adolf Hitler proposed a better deal, which would give the USSR control over much of Eastern Europe through the Molotov–Ribbentrop Pact . In September, Germany invaded Poland, and the USSR also invaded later that month, resulting in

492-742: A few continued to act as test aircraft into the early 1970s. The only other nation to use the RB-45C was the United Kingdom , where it was operated by an ad hoc unit of crews largely drawn from Nos. 35 and 115 Squadrons RAF. Whilst the Department of Defense was prohibited by the President of the United States from overflying the Soviet Union at the time, US allies closer to the European theatre of war could. In

615-596: A mission-need statement and on 17 November 1944, released a formal requirement, which has been claimed to be the first such requirement issued outside of Germany. The requirements involved more than just jet propulsion; the desired aircraft would have a gross weight of between 80,000 lb (36,287 kg) and 200,000 lb (90,718 kg), which would make it a light bomber for that era. Aircraft manufacturer North American Aviation chose to submit their own design, internally designated NA-130 . This bid, along with three rival proposals from other firms, would be ordered by

738-477: A more advanced development stage and less expensive. Accordingly, on 2 January 1947, a production contract for B-45As was signed. Early plans called for five light bomb groups and three light reconnaissance groups. The B-45 was commonly viewed as an interim aircraft while more advanced designs like the B-47 were being developed. Following the completion of the first prototype at North American's Inglewood facility, it

861-592: A new profitable market. In the late 1920s and early 1930s, Stalin ordered Marxist-Leninist parties across the world to strongly oppose non-Marxist political parties, labour unions or other organizations on the left, which they labelled social fascists . In the usage of the Soviet Union, and of the Comintern and its affiliated parties in this period, the epithet fascist was used to describe capitalist society in general and virtually any anti-Soviet or anti-Stalinist activity or opinion. Stalin reversed himself in 1934 with

984-504: A potential Soviet attack. This realization was a major factor contributing to the USAF's decision regarding the future of the B-45. The B-45, like most post-World War II American bombers, could carry both nuclear and conventional bombs. The progress of weapons technology had led to a great reduction in both the weight and size of nuclear weapons in the U.S. inventory, which enabled smaller aircraft such as

1107-469: A union of equals, in practice the Soviet Union was dominated by Russians . The domination was so absolute that for most of its existence, the country was commonly (but incorrectly) referred to as 'Russia'. While the Russian SFSR was technically only one republic within the larger union, it was by far the largest (both in terms of population and area), most powerful, and most highly developed. The Russian SFSR

1230-478: Is an artificial velocity called the "effective exhaust velocity". This is higher than the actual exhaust velocity because the mass of the combustion air is not being accounted for. Actual and effective exhaust velocity are the same in rocket engines not utilizing air. Specific impulse is inversely proportional to specific fuel consumption (SFC) by the relationship I sp = 1/( g o ·SFC) for SFC in kg/(N·s) and I sp = 3600/SFC for SFC in lb/(lbf·hr). From

1353-627: Is his background, his education , his profession . These are the questions that will determine the fate of the accused. That is the meaning and essence of the Red Terror ." During his rule, Stalin always made the final policy decisions. Otherwise, Soviet foreign policy was set by the commission on the Foreign Policy of the Central Committee of the Communist Party of the Soviet Union , or by

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1476-499: Is less important in jet engines that employ wings and use outside air for combustion and carry payloads that are much heavier than the propellant. Specific impulse includes the contribution to impulse provided by external air that has been used for combustion and is exhausted with the spent propellant. Jet engines use outside air, and therefore have a much higher specific impulse than rocket engines. The specific impulse in terms of propellant mass spent has units of distance per time, which

1599-486: Is mined, all forests have been destroyed by contamination, while the northern and other parts of Russia have been affected by emissions. During the 1990s, people in the West were also interested in the radioactive hazards of nuclear facilities, decommissioned nuclear submarines , and the processing of nuclear waste or spent nuclear fuel . It was also known in the early 1990s that the USSR had transported radioactive material to

1722-538: Is most effective when the Reynolds number is high—that is, the object being propelled is relatively large and passing through a low-viscosity medium. In animals, the most efficient jets are pulsed, rather than continuous, at least when the Reynolds number is greater than 6. Specific impulse (usually abbreviated I sp ) is a measure of how effectively a rocket uses propellant or jet engine uses fuel. By definition, it

1845-493: Is produced by ejecting water through a siphon , which typically narrows to a small opening to produce the maximum exhalent velocity. The water passes through the gills prior to exhalation, fulfilling the dual purpose of respiration and locomotion. Sea hares (gastropod molluscs) employ a similar method, but without the sophisticated neurological machinery of cephalopods they navigate somewhat more clumsily. Some teleost fish have also developed jet propulsion, passing water through

1968-480: Is the total impulse (or change in momentum ) delivered per unit of propellant consumed and is dimensionally equivalent to the generated thrust divided by the propellant mass flow rate or weight flow rate. If mass ( kilogram , pound-mass , or slug ) is used as the unit of propellant, then specific impulse has units of velocity . If weight ( newton or pound-force ) is used instead, then specific impulse has units of time (seconds). Multiplying flow rate by

2091-520: The Aircraft and Weapons Board to cancel 51 of the 190 aircraft on order. The cancellation of these 51 B-45s was announced on 7 January 1949. A total of 96 aircraft were delivered between February 1948 and June 1949. Multiple improved versions of the B-45 were proposed by North American, some of which were realized. While the B-45B concept equipped with a radar -guided fire control system would never be ordered,

2214-678: The Barents Sea and Kara Sea , which was later confirmed by the Russian parliament. The crash of the K-141 Kursk submarine in 2000 in the west further raised concerns. In the past, there were accidents involving submarines K-19 , K-8 , a K-129 , K-27 , K-219 and K-278 Komsomolets . There were three power hierarchies in the Soviet Union: the legislature represented by the Supreme Soviet of

2337-653: The Convair B-58 Hustler , an early supersonic bomber. The Tornado was also adopted by the Royal Air Force (RAF) and operated from bases in United Kingdom, where it was used to overfly the Soviet Union on intelligence-related missions. Despite being painted with RAF markings and flown by RAF crew, they did not belong to the RAF; the RAF merely operated them on behalf of the United States. Development of what would become

2460-661: The Era of Stagnation , was marked by economic decline, political corruption, and a rigid gerontocracy . Despite efforts to maintain the Soviet Union's superpower status, the economy struggled due to its centralized nature, technological backwardness, and inefficiencies. The vast military expenditures and burdens of maintaining the Eastern Bloc, further strained the Soviet economy. In the 1980s, Mikhail Gorbachev 's policies of Glasnost (openness) and Perestroika (restructuring) aimed to revitalize

2583-548: The Georgian Affair of 1922, Lenin called for the Russian SFSR and other national Soviet republics to form a greater union which he initially named as the Union of Soviet Republics of Europe and Asia (Russian: Союз Советских Республик Европы и Азии , romanized : Soyuz Sovyetskikh Respublik Evropy i Azii ). Joseph Stalin initially resisted Lenin's proposal but ultimately accepted it, and with Lenin's agreement he changed

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2706-729: The Land Forces , the Air Force , the Navy , Joint State Political Directorate (OGPU) and the Internal Troops . The OGPU later became independent and in 1934 joined the NKVD secret police, and so its internal troops were under the joint leadership of the defense and internal commissariats. After World War II, Strategic Missile Forces (1959), Air Defense Forces (1948) and National Civil Defense Forces (1970) were formed, which ranked first, third, and sixth in

2829-518: The Moscow State Institute of International Relations . The Marxist-Leninist leadership of the Soviet Union intensely debated foreign policy issues and changed directions several times. Even after Stalin assumed dictatorial control in the late 1920s, there were debates, and he frequently changed positions. During the country's early period, it was assumed that Communist revolutions would break out soon in every major industrial country, and it

2952-761: The Popular Front program that called on all Marxist parties to join with all anti-Fascist political, labour, and organizational forces that were opposed to fascism , especially of the Nazi variety. The rapid growth of power in Nazi Germany encouraged both Paris and Moscow to form a military alliance, and the Franco-Soviet Treaty of Mutual Assistance was signed in May 1935. A firm believer in collective security, Stalin's foreign minister Maxim Litvinov worked very hard to form

3075-564: The Procurator General and the Council of Ministers (known before 1946 as the Council of People's Commissars ), headed by the Chairman (Premier) and managing an enormous bureaucracy responsible for the administration of the economy and society. State and party structures of the constituent republics largely emulated the structure of the central institutions, although the Russian SFSR, unlike

3198-537: The Russian Civil War , the Soviet Union quickly became a one-party state under the Communist Party . Its early years under Lenin were marked by the implementation of socialist policies and the New Economic Policy (NEP), which allowed for market-oriented reforms. The rise of Joseph Stalin in the late 1920s ushered in an era of intense centralization and totalitarianism. Stalin's rule was characterized by

3321-622: The Russian Empire , the State Council , which functioned from 1810 to 1917, was referred to as a Council of Ministers. The Soviets as workers' councils first appeared during the 1905 Russian Revolution . Although they were quickly suppressed by the Imperial army, after the February Revolution of 1917 , workers' and soldiers' Soviets emerged throughout the country and shared power with

3444-802: The Russian Provisional Government . The Bolsheviks, led by Vladimir Lenin , demanded that all power be transferred to the Soviets, and gained support from the workers and soldiers. After the October Revolution , in which the Bolsheviks seized power from the Provisional Government in the name of the Soviets, Lenin proclaimed the formation of the Russian Socialist Federal Soviet Republic (RSFSR). During

3567-606: The Soviet Union . On 2 January 1947, North American received a production contract for the bomber, designated B-45A, from the USAF. On 24 February 1947, the prototype performed its maiden flight . Soon after its entry to service on 22 April 1948, B-45 operations were troubled by technical problems, in particular poor engine reliability. The USAF found the plane to be useful during the Korean War performing both conventional bombing and aerial reconnaissance missions. On 4 December 1950,

3690-629: The U.S. War Department , which sought a company to develop a jet-propelled bomber to equal those being fielded by Nazi Germany , such as the Arado Ar 234 . Following a competitive review of the submissions, the War Department issued a contract to North American to develop its NA-130 proposal; on 8 September 1944, work commenced on the assembly of three prototypes . Progress on the program was stalled by post-war cutbacks in defense expenditure but regained importance due to growing tensions between America and

3813-616: The Universal Declaration of Human Rights (1948), saying that it was "overly juridical" and potentially infringed on national sovereignty. The Soviet Union later signed legally-binding human rights documents, such as the International Covenant on Civil and Political Rights in 1973 (and the 1966 International Covenant on Economic, Social and Cultural Rights ), but they were neither widely known or accessible to people living under Communist rule, nor were they taken seriously by

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3936-624: The Western Bloc during the Cold War . This period saw the USSR engage in an arms race, the Space Race , and proxy wars around the globe. The post-Stalin leadership, particularly under Nikita Khrushchev , initiated a de-Stalinization process, leading to a period of liberalization and relative openness known as the Khrushchev Thaw . However, the subsequent era under Leonid Brezhnev , referred to as

4059-455: The first probe to land on another planet . In 1985, the last Soviet leader, Mikhail Gorbachev , sought to reform the country through his policies of glasnost and perestroika . In 1989, various countries of the Warsaw Pact overthrew their Soviet-backed regimes , and nationalist and separatist movements erupted across the Soviet Union. In 1991, amid efforts to preserve the country as

4182-554: The general secretary (First Secretary from 1953 to 1966), the de facto highest office in the Soviet Union. Depending on the degree of power consolidation, it was either the Politburo as a collective body or the General Secretary, who always was one of the Politburo members, that effectively led the party and the country (except for the period of the highly personalized authority of Stalin, exercised directly through his position in

4305-485: The right to food , the right to work , and the right to education . The Soviet conception of human rights was very different from international law . According to Soviet legal theory , "it is the government who is the beneficiary of human rights which are to be asserted against the individual". The Soviet state was considered as the source of human rights. Therefore, the Soviet legal system considered law an arm of politics and it also considered courts agencies of

4428-517: The system of appointments . All senior government officials and most deputies of the Supreme Soviet were members of the CPSU. Of the party heads themselves, Stalin (1941–1953) and Khrushchev (1958–1964) were Premiers. Upon the forced retirement of Khrushchev, the party leader was prohibited from this kind of double membership, but the later General Secretaries for at least some part of their tenure occupied

4551-487: The third-most populous country . An overall successor to the Russian Empire , it was nominally organized as a federal union of national republics , the largest and most populous of which was the Russian SFSR . In practice, its government and economy were highly centralized . As a one-party state governed by the Communist Party of the Soviet Union , it was a flagship communist state . Its capital and largest city

4674-683: The 1920s, it refused to rubber stamp proposals from the party and Council of Ministers. In 1990, Gorbachev introduced and assumed the position of the President of the Soviet Union , concentrated power in his executive office, independent of the party, and subordinated the government, now renamed the Cabinet of Ministers of the USSR , to himself. Tensions grew between the Union-wide authorities under Gorbachev, reformists led in Russia by Boris Yeltsin and controlling

4797-631: The 323rd Strategic Reconnaissance Squadron began to arrive in Japan to fly alongside the 91st Strategic Reconnaissance Squadron, supplementing the World War II-era piston-engine RB-29s which had been easy targets for North Korean MiGs . The RB-45s provided valuable intelligence throughout the remainder of the Korean War, despite the limited number available. RB-45Cs flew many daylight missions until early 1952, when they changed to night operations after an RB-45

4920-399: The 33 converted from B-45Cs. It was this variant that was operated (clandestinely) over the Soviet Union by the RAF "special duties" unit at RAF Sculthorpe, with the first sortie of three aircraft commanded by Squadron Leader John Crampton taking place on the night of April 17, 1952. Tactical Air Command Strategic Air Command Air Defence Command Three B-45s have survived to

5043-553: The 91st Reconnaissance Wing flew from Alaska to Japan in 9 hrs 50 mins, winning the MacKay Trophy for their achievement. Within the 91st SRW, by 1954 the RB-45C had been replaced by the RB-47E. The phased-out RB-45Cs then went to the 19th Tactical Reconnaissance Squadron, which operated them until they were withdrawn from operational use in the spring of 1958. By the end of the 1950s, all B-45s had been removed from active service. However,

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5166-862: The Air Force took delivery of 22 B-45s in April 1948. Powered by J35 turbojets and not considered combat-ready, they were assigned to training duties and to conduct various test programs. The next batch were powered by the more powerful J47 turbojets. The first B-45As entered service in November 1948 with the 47th Bombardment Group, and the initial order of 96 was completed in March 1950. The first B-45As were not equipped with bomb fire control systems or bombsights . They suffered from gyrocompass failures at high speeds, unhooked bomb shackles, engine fires, and inaccurate cockpit gauges. The AN/APQ-24 bombing and navigation radar on some B-45s

5289-461: The B-45 to carry out nuclear strikes, a mission which had previously been confined to heavy bombers. Suddenly, the small fleet of B-45s once again possessed considerable value as a nuclear deterrent. On 4 December 1950, the first successful interception of a jet bomber by a jet fighter occurred when MiG-15 pilot Aleksandr F. Andrianov shot down an RB-45C over China . Captain Charles McDonough

5412-463: The B-45 was important to United States defense strategy, performing the strategically critical deterrence mission for several years during the early 1950s, after which the Tornado was superseded by the larger and more capable Boeing B-47 Stratojet . Both B-45 bombers and reconnaissance RB-45s served in the USAF's Strategic Air Command from 1950 until 1959, when the USAF withdrew the last ones in favor of

5535-581: The B-45 was initiated by a request from the U.S. War Department during World War II . Aviation technology had developed rapidly and the US was eager to introduce the latest advances into the Army Air Forces. Having been alarmed by the emergence of the German jet bomber Arado Ar 234 , the War Department issued a request for a new family of jet-powered bombers. During October 1944 the U.S. Army Air Forces (USAAF) issued

5658-469: The B-45 were plagued by engine problems which, along with numerous other minor flaws, undermined its usefulness. However, the aircraft regained importance when the United States entered the Korean War in 1950. In this theatre, the B-45 proved its value both as a bomber and as a reconnaissance aircraft. The mass deployment of U.S. forces to the war on the Korean peninsula exposed the vulnerability of North Atlantic Treaty Organization (NATO) forces in Europe to

5781-437: The B-45A with improved radar and fire-control systems. None were built. The B-45C was the first multiengine jet bomber in the world to be refueled in midair. It carried two 1,200 gal (4,542 L) wingtip fuel tanks, had a strengthened canopy , and an inflight refueling receptacle. The first B-45C was flown on May 3, 1949. Only ten were built, and the remaining 33 under construction were converted to RB-45Cs. The RB-45C

5904-411: The Communist authorities. Under Joseph Stalin , the death penalty was extended to adolescents as young as 12 years old in 1935. Sergei Kovalev recalled "the famous article 125 of the Constitution which enumerated all basic civil and political rights" in the Soviet Union. But when he and other prisoners attempted to use this as a legal basis for their abuse complaints, their prosecutor's argument

6027-420: The Council of Ministers rather than the Politburo after 1941). They were not controlled by the general party membership, as the key principle of the party organization was democratic centralism , demanding strict subordination to higher bodies, and elections went uncontested, endorsing the candidates proposed from above. The Communist Party maintained its dominance over the state mainly through its control over

6150-403: The Latin alphabet: SSSR ) is the abbreviation of the Russian-language cognate of USSR, as written in Cyrillic letters . The Soviets used this abbreviation so frequently that audiences worldwide became familiar with its meaning. After this, the most common Russian initialization is Союз ССР (transliteration: Soyuz SSR ) which essentially translates to Union of SSRs in English. In addition,

6273-481: The Politburo after the deaths of Lenin and Stalin, as well as after Khrushchev's dismissal, itself due to a decision by both the Politburo and the Central Committee. All leaders of the Communist Party before Gorbachev died in office, except Georgy Malenkov and Khrushchev, both dismissed from the party leadership amid internal struggle within the party. Between 1988 and 1990, facing considerable opposition, Mikhail Gorbachev enacted reforms shifting power away from

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6396-399: The Russian short form name Советский Союз (transliteration: Sovyetsky Soyuz , which literally means Soviet Union ) is also commonly used, but only in its unabbreviated form. Since the start of the Great Patriotic War at the latest, abbreviating the Russian name of the Soviet Union as СС has been taboo, the reason being that СС as a Russian Cyrillic abbreviation is associated with

6519-450: The Soviet Union and turned into SSRs, which was not recognized by most of the international community and was considered an illegal occupation . After the Soviet invasion of Finland , the Karelo-Finnish SSR was formed on annexed territory as a Union Republic in March 1940 and then incorporated into Russia as the Karelian ASSR in 1956. Between July 1956 and September 1991, there were 15 union republics (see map below). While nominally

6642-500: The Soviet Union in 1922. Following Lenin's death in 1924, Joseph Stalin came to power, inaugurating rapid industrialization and forced collectivization that led to significant economic growth but contributed to a famine between 1930 and 1933 that killed millions. The Soviet forced labour camp system of the Gulag was expanded. During the late 1930s, Stalin's government conducted the Great Purge to remove opponents, resulting in mass death, imprisonment, and deportation. In 1939,

6765-425: The Soviet Union , the government represented by the Council of Ministers , and the Communist Party of the Soviet Union (CPSU), the only legal party and the final policymaker in the country. At the top of the Communist Party was the Central Committee , elected at Party Congresses and Conferences. In turn, the Central Committee voted for a Politburo (called the Presidium between 1952 and 1966), Secretariat and

6888-452: The Soviet Union produced many significant social and technological achievements and innovations . It had the world's second-largest economy and largest standing military. An NPT-designated state , it wielded the largest arsenal of nuclear weapons in the world . As an Allied nation, it was a founding member of the United Nations as well as one of the five permanent members of the United Nations Security Council . Before its dissolution,

7011-414: The Soviet Union undertook a campaign of de-Stalinization under Nikita Khrushchev , which saw reversals and rejections of Stalinist policies. This campaign caused tensions with Communist China . During the 1950s, the Soviet Union expanded its efforts in space exploration and took a lead in the Space Race with the first artificial satellite , the first human spaceflight , the first space station , and

7134-411: The Soviet Union was the world's largest country, a status that is retained by the Russian Federation . Covering a sixth of Earth's land surface, its size was comparable to that of North America . Two other successor states, Kazakhstan and Ukraine , rank among the top 10 countries by land area, and the largest country entirely in Europe, respectively. The European portion accounted for a quarter of

7257-417: The Soviet Union's priorities changed. Despite previous conflict with the United Kingdom , Vyacheslav Molotov dropped his post war border demands. The Cold War was a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc , which began following World War II in 1945. The term cold war is used because there

7380-464: The Soviet system but instead accelerated its unraveling. Nationalist movements gained momentum across the Soviet republics , and the control of the Communist Party weakened. The failed coup attempt in August 1991 against Gorbachev by hardline communists hastened the end of the Soviet Union , which formally dissolved on December 26, 1991, ending nearly seven decades of Soviet rule. With an area of 22,402,200 square kilometres (8,649,500 sq mi),

7503-408: The USSR and Nazi Germany signed a nonaggression pact , but in 1941, Germany invaded the Soviet Union in the largest land invasion in history, opening the Eastern Front of World War II . The Soviets played a decisive role in defeating the Axis powers , suffering an estimated 27 million casualties , which accounted for most Allied losses. In the aftermath of the war , the Soviet Union consolidated

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7626-430: The USSR from the United States . The country's highest mountain was Communism Peak (now Ismoil Somoni Peak ) in Tajikistan , at 7,495 metres (24,590 ft). The USSR also included most of the world's largest lakes; the Caspian Sea (shared with Iran ), and Lake Baikal , the world's largest (by volume) and deepest freshwater lake that is also an internal body of water in Russia. Neighbouring countries were aware of

7749-638: The USSR was one of the world's two superpowers through its hegemony in Eastern Europe, global diplomatic and ideological influence (particularly in the Global South ), military and economic strengths, and scientific accomplishments. The word soviet is derived from the Russian word sovet (Russian: совет ), meaning 'council', 'assembly', 'advice', ultimately deriving from the proto-Slavic verbal stem of * vět-iti ('to inform'), related to Slavic věst ('news'), English wise . The word sovietnik means 'councillor'. Some organizations in Russian history were called council (Russian: совет ). In

7872-430: The USSR. Moscow eventually stopped threatening other states, and instead worked to open peaceful relationships in terms of trade, and diplomatic recognition. The United Kingdom dismissed the warnings of Winston Churchill and a few others about a continuing Marxist-Leninist threat, and opened trade relations and de facto diplomatic recognition in 1922. There was hope for a settlement of the pre-war Tsarist debts, but it

7995-535: The United Kingdom, whilst successive Labour governments had refused, the return of Winston Churchill and a Conservative administration to Downing Street in 1951 brought a more co-operative atmosphere to joint intelligence initiatives. As a result, under Operation Ju-jitsu , in July 1951 four aircraft were leased to Britain from the 91st Strategic Reconnaissance Wing to form 'Special Duties Flight, Sculthorpe', commanded by Squadron Leader John Crampton . Stripped of USAF markings and then applied with RAF markings ,

8118-442: The accident were unknown, 4,000 new cases of thyroid cancer which resulted from the accident's contamination were reported at the time of the accident, but this led to a relatively low number of deaths (WHO data, 2005). Another major radioactive accident was the Kyshtym disaster . The Kola Peninsula was one of the places with major problems. Around the industrial cities of Monchegorsk and Norilsk , where nickel , for example,

8241-514: The air, or in the case of a nuclear rocket , heats an inert propellant (such as liquid hydrogen ) by forcing it through a nuclear reactor . Plasma thrusters accelerate a plasma by electromagnetic means. The pump-jet, used for marine propulsion , uses water as the working fluid, pressurized by a ducted propeller , centrifugal pump , or a combination of the two. Cephalopods such as squid use jet propulsion for rapid escape from predators ; they use other mechanisms for slow swimming. The jet

8364-414: The aircraft for nuclear missions. The 40 B-45s allocated to the program were equipped with a new defensive system and additional fuel tankage. Despite the magnitude of the modifications project, plus ongoing problems with the jet engines, nuclear-capable B-45s began reaching the United Kingdom in May 1952, and deployment of the 40 aircraft was completed in mid-June. It was at about the same time that RB-45s of

8487-465: The aircraft to be quickly qualified for service. However, as the development and flight-testing of the rival B-47 proceeded well, heralding its own production, the future of the B-45 became increasingly uncertain. During mid-1948, the U.S. Air Staff began to question its value. Soon afterwards, President Truman's budget restraints reduced Air Force expenditures, which curtailed B-45 production to 142 airframes. During 1950, further budget cuts compelled

8610-402: The cancellation or delay of many projects. In 1946, rising tension with the Soviet Union impelled the USAAF to assign a higher priority to jet bomber development. By mid-1946, both the XB-45 and the rival Convair XB-46 were nearing completion but the Boeing XB-47 and Martin XB-48 were at least two years out. Thus, the USAAF chose to evaluate the first two designs. The B-45 proved to be at

8733-404: The compressors and turbines, depending instead on the dynamic pressure generated by the high speed (known as ram compression). Pulse jets also omit the compressors and turbines but can generate static thrust and have limited maximum speed. The rocket is capable of operating in the vacuum of space because it is dependent on the vehicle carrying its own oxidizer instead of using the oxygen in

8856-429: The country was limited. The state restricted rights of citizens to private property . According to the Universal Declaration of Human Rights , human rights are the "basic rights and freedoms to which all humans are entitled." including the right to life and liberty , freedom of expression , and equality before the law ; and social, cultural and economic rights, including the right to participate in culture ,

8979-643: The country's area and was the cultural and economic center. The eastern part in Asia extended to the Pacific Ocean to the east and Afghanistan to the south, and, except some areas in Central Asia , was much less populous. It spanned over 10,000 kilometres (6,200 mi) east to west across 11 time zones , and over 7,200 kilometres (4,500 mi) north to south. It had five climate zones: tundra , taiga , steppes , desert and mountains . The USSR, like Russia , had

9102-477: The definition of specific impulse thrust in SI units is: where V e is the effective exhaust velocity and m ˙ {\displaystyle {\dot {m}}} is the propellant flow rate. Reaction engines produce thrust by expelling solid or fluid reaction mass ; jet propulsion applies only to engines which use fluid reaction mass. A jet engine is a reaction engine which uses ambient air as

9225-541: The duty of the Russian Bolsheviks to protect what they had in Russia, and avoid military confrontations that might destroy their bridgehead. Russia was now a pariah state, along with Germany. The two came to terms in 1922 with the Treaty of Rapallo that settled long-standing grievances. At the same time, the two countries secretly set up training programs for the illegal German army and air force operations at hidden camps in

9348-411: The first successful interception of a jet bomber by a jet fighter occurred when a B-45 was shot down by a Soviet-built MiG-15 inside Chinese airspace. During the early 1950s, 40 B-45s were extensively modified so that they could be equipped with nuclear weapons . Improvements were made to their defensive systems and the fuel tankage was expanded to increase their survivability and range. In its heyday,

9471-637: The forced collectivization of agriculture , rapid industrialization , and the Great Purge , which eliminated perceived enemies of the state. The Soviet Union played a crucial role in the Allied victory in World War II , but at a tremendous human cost, with millions of Soviet citizens perishing in the conflict. The Soviet Union emerged as one of the world's two superpowers, leading the Eastern Bloc in opposition to

9594-742: The founding republics who signed the Treaty on the Creation of the USSR in December 1922. In 1924, during the national delimitation in Central Asia, Uzbekistan and Turkmenistan were formed from parts of Russia's Turkestan ASSR and two Soviet dependencies, the Khorezm and Bukharan PSPs . In 1929, Tajikistan was split off from the Uzbekistan SSR. With the constitution of 1936, the Transcaucasian SFSR

9717-528: The four aircraft were attached to a USAF squadron based at RAF Sculthorpe , Norfolk in eastern England. The aircraft were tasked with flying deep-level reconnaissance missions over the Soviet Union to gather electronic and photographic intelligence . The Special Duties Flight conducted missions during the period 1952–54. On April 17, 1952, three aircraft were assigned to head for Kyiv from West Germany, scheduled to return to Sculthorpe ten hours later. Flying at 36,000 feet (11,000 m), Crampton's aircraft

9840-414: The gills to supplement fin-driven motion. In some dragonfly larvae, jet propulsion is achieved by the expulsion of water from a specialised cavity through the anus. Given the small size of the organism, a great speed is achieved. Scallops and cardiids , siphonophores , tunicates (such as salps ), and some jellyfish also employ jet propulsion. The most efficient jet-propelled organisms are

9963-539: The government. Extensive extrajudicial powers were given to the Soviet secret police agencies . In practice, the Soviet government significantly curbed the rule of law , civil liberties , protection of law and guarantees of property , which were considered as examples of "bourgeois morality" by Soviet law theorists such as Andrey Vyshinsky . The USSR and other countries in the Soviet Bloc had abstained from affirming

10086-457: The government. On 8 September 1944, the company commenced production of three prototypes based on its NA-130 design. According to aviation authors Bill Gunston and Peter Gilchrist, the NA-130 was viewed as "merely a traditional bomber on to which jet engines had been fitted...the first effective jet bomber in the world, a case of the right aircraft at the right time". The end of the war resulted in

10209-454: The high levels of pollution in the Soviet Union but after the dissolution of the Soviet Union it was discovered that its environmental problems were greater than what the Soviet authorities admitted. The Soviet Union was the world's second largest producer of harmful emissions. In 1988, total emissions in the Soviet Union were about 79% of those in the United States. But since the Soviet GNP

10332-402: The highest bodies of the party and making the Supreme Soviet less dependent on them. The Congress of People's Deputies was established, the majority of whose members were directly elected in competitive elections held in March 1989, the first in Soviet history. The Congress now elected the Supreme Soviet, which became a full-time parliament, and much stronger than before. For the first time since

10455-644: The infamous Schutzstaffel of Nazi Germany , as SS is in English. In English-language media, the state was referred to as the Soviet Union or the USSR. The Russian SFSR dominated the Soviet Union to such an extent that, for most of the Soviet Union's existence, it was colloquially, but incorrectly, referred to as Russia . The history of the Soviet Union began with the ideals of the Bolshevik Revolution and ended in dissolution amidst economic collapse and political disintegration. Established in 1922 following

10578-586: The late 1950s, 1960s and 1970s, including the creation of new state commissions and committees. It gained additional powers relating to the approval of the Five-Year Plans and the government budget . The Supreme Soviet elected a Presidium (successor of the Central Executive Committee ) to wield its power between plenary sessions, ordinarily held twice a year, and appointed the Supreme Court ,

10701-542: The late 1970s and early 1980s. The constitution , which was promulgated in 1924 , 1936 and 1977 , did not limit state power. No formal separation of powers existed between the Party, Supreme Soviet and Council of Ministers that represented executive and legislative branches of the government. The system was governed less by statute than by informal conventions, and no settled mechanism of leadership succession existed. Bitter and at times deadly power struggles took place in

10824-459: The more advanced B-45C was. This variant featured a strengthened airframe, tip tanks for greater fuel capacity, and more powerful General Electric J47-15 turbojet engines. Only 10 would be delivered from an order of 43. Perhaps the most significant variant was the RB-45C, a dedicated reconnaissance aircraft that lacked a bomb bay; 33 aircraft were delivered. The B-45 was later replaced by the supersonic Convair B-58 Hustler . Early operations of

10947-521: The mostly ceremonial position of Chairman of the Presidium of the Supreme Soviet , the nominal head of state . The institutions at lower levels were overseen and at times supplanted by primary party organizations . However, in practice the degree of control the party was able to exercise over the state bureaucracy, particularly after the death of Stalin, was far from total, with the bureaucracy pursuing different interests that were at times in conflict with

11070-410: The name to the Union of Soviet Socialist Republics (USSR), although all republics began as socialist soviet and did not change to the other order until 1936 . In addition, in the regional languages of several republics, the word council or conciliar in the respective language was only quite late changed to an adaptation of the Russian soviet and never in others, e.g. Ukrainian SSR . СССР (in

11193-417: The newly elected Supreme Soviet of the Russian SFSR , and communist hardliners. On 19–21 August 1991, a group of hardliners staged a coup attempt . The coup failed, and the State Council of the Soviet Union became the highest organ of state power 'in the period of transition'. Gorbachev resigned as General Secretary, only remaining President for the final months of the existence of the USSR. The judiciary

11316-603: The official Soviet system of importance (ground forces were second, Air Force fourth, and Navy fifth). The army had the greatest political influence. In 1989, there served two million soldiers divided between 150 motorized and 52 armored divisions. Until the early 1960s, the Soviet navy was a rather small military branch, but after the Caribbean crisis , under the leadership of Sergei Gorshkov , it expanded significantly. It became known for battlecruisers and submarines. In 1989, there served 500 000 men. The Soviet Air Force focused on

11439-496: The other constituent republics, for most of its history had no republican branch of the CPSU, being ruled directly by the union-wide party until 1990. Local authorities were organized likewise into party committees , local Soviets and executive committees . While the state system was nominally federal, the party was unitary. The state security police (the KGB and its predecessor agencies ) played an important role in Soviet politics. It

11562-550: The other on August 31. One was damaged beyond repair in an accident. The last XB-45 was delivered to Wright-Patterson Air Force Base in 1949. It proved excessively difficult to maintain and was relegated to being used as a ground trainer. The B-45A differed from the XB-45 in having improved ejection seats and communications equipment, an E-4 automatic pilot and bombing navigation radar. The first production B-45 flew in February 1948, and

11685-560: The partition of Poland. In response, Britain and France declared war on Germany, marking the beginning of World War II . Up until his death in 1953, Joseph Stalin controlled all foreign relations of the Soviet Union during the interwar period . Despite the increasing build-up of Germany 's war machine and the outbreak of the Second Sino-Japanese War , the Soviet Union did not cooperate with any other nation, choosing to follow its own path. However, after Operation Barbarossa ,

11808-529: The party's highest body the Politburo . Operations were handled by the separate Ministry of Foreign Affairs . It was known as the People's Commissariat for Foreign Affairs (or Narkomindel), until 1946. The most influential spokesmen were Georgy Chicherin (1872–1936), Maxim Litvinov (1876–1951), Vyacheslav Molotov (1890–1986), Andrey Vyshinsky (1883–1954) and Andrei Gromyko (1909–1989). Intellectuals were based in

11931-454: The party, nor was the party itself monolithic from top to bottom, although factions were officially banned . The Supreme Soviet (successor of the Congress of Soviets ) was nominally the highest state body for most of the Soviet history, at first acting as a rubber stamp institution, approving and implementing all decisions made by the party. However, its powers and functions were extended in

12054-413: The present day. Data from U.S. Standard Aircraft Characteristics General characteristics Performance Armament Aircraft of comparable role, configuration, and era Related lists Jet propulsion Jet propulsion is produced by some reaction engines or animals when thrust is generated by a fast moving jet of fluid in accordance with Newton's laws of motion . It

12177-442: The salps, which use an order of magnitude less energy (per kilogram per metre) than squid. Soviet Union The Union of Soviet Socialist Republics ( USSR ), commonly known as the Soviet Union , was a transcontinental country that spanned much of Eurasia from 1922 to 1991. During its existence, it was the largest country by area , extending across eleven time zones and sharing borders with twelve countries , and

12300-516: The standard gravity ( g 0 ) converts specific impulse from the mass basis to the weight basis. A propulsion system with a higher specific impulse uses the mass of the propellant more effectively in creating forward thrust and, in the case of a rocket, less propellant needed for a given delta-v , per the Tsiolkovsky rocket equation . In rockets, this means the engine is more effective at gaining altitude, distance, and velocity. This effectiveness

12423-469: The struggle for dominance was expressed via indirect means such as psychological warfare , propaganda campaigns, espionage , far-reaching embargoes , rivalry at sports events and technological competitions such as the Space Race . Constitutionally, the USSR was a federation of constituent Union Republics, which were either unitary states, such as Ukraine or Byelorussia (SSRs), or federations, such as Russia or Transcaucasia (SFSRs), all four being

12546-633: The territory occupied by the Red Army , forming satellite states , and undertook rapid economic development which cemented its status as a superpower . Geopolitical tensions with the US led to the Cold War . The American-led Western Bloc coalesced into NATO in 1949, prompting the Soviet Union to form its own military alliance, the Warsaw Pact , in 1955. Neither side engaged in direct military confrontation, and instead fought on an ideological basis and through proxy wars . In 1953, following Stalin's death ,

12669-492: The truth". Human rights in the Soviet Union were severely limited. The Soviet Union was a totalitarian state from 1927 until 1953 and a one-party state until 1990. Freedom of speech was suppressed and dissent was punished. Independent political activities were not tolerated, whether these involved participation in free labour unions , private corporations , independent churches or opposition political parties . The freedom of movement within and especially outside

12792-499: The working fluid and converts it to a hot, high-pressure gas which is expanded through one or more nozzles . Technically, most jet engines are gas turbines , working on the Brayton Cycle . Two types of jet engines, the turbojet and turbofan , employ axial-flow or centrifugal compressors to raise the pressure before combustion and turbines to drive the compression. Ramjets operate only at high flight speeds because they omit

12915-451: The world's longest border , measuring over 60,000 kilometres (37,000 mi), or 1 + 1 ⁄ 2 circumferences of Earth. Two-thirds of it was a coastline . The country bordered Afghanistan , the People's Republic of China , Czechoslovakia , Finland , Hungary , Iran , Mongolia , North Korea , Norway , Poland , Romania , and Turkey from 1945 to 1991. The Bering Strait separated

13038-562: Was Moscow . The Soviet Union's roots lay in the October Revolution of 1917. The new government, led by Vladimir Lenin , established the Russian Soviet Federative Socialist Republic (RSFSR), the world's first constitutionally socialist state . The revolution was not accepted by all within the Russian Republic , resulting in the Russian Civil War . The RSFSR and its subordinate republics were merged into

13161-442: Was almost lost to a MiG-15 . All 33 RB-45Cs built were assigned to the 91st Strategic Reconnaissance Wing's 322nd, 323rd and 324th Strategic Reconnaissance Squadrons. The RB-45C also flew several long-range reconnaissance missions over the Soviet Union during the mid-1950s. On July 29, 1952, an RB-45C made the first non-stop trans-Pacific flight, having been refueled twice by KB-29s along the way. Maj. Lou Carrington and his crew of

13284-524: Was also the industrial center of the Soviet Union. Historian Matthew White wrote that it was an open secret that the country's federal structure was 'window dressing' for Russian dominance. For that reason, the people of the USSR were usually called 'Russians', not 'Soviets', since 'everyone knew who really ran the show'. Under the Military Law of September 1925, the Soviet Armed Forces consisted of

13407-528: Was carried out within the terms of the Soviet Civil Code. Some Soviet legal scholars even said that "criminal repression" may be applied in the absence of guilt. Martin Latsis , chief of Soviet Ukraine 's secret police explained: "Do not look in the file of incriminating evidence to see whether or not the accused rose up against the Soviets with arms or words. Ask him instead to which class he belongs, what

13530-409: Was delivered by road in sections to Muroc Field , where it was reassembled and readied for flight testing. On 17 March 1947, the maiden flight was piloted by George Krebs and Paul Brewer. The flight test program became fraught with technical issues and setbacks, the most dramatic being the loss of the first prototype. Despite the problems, work continued at a frantic pace due to political pressure for

13653-404: Was dissolved, resulting in its constituent republics of Armenia , Georgia and Azerbaijan being elevated to Union Republics, while Kazakhstan and Kirghizia were split off from the Russian SFSR, resulting in the same status. In August 1940, Moldavia was formed from parts of Ukraine and Soviet-occupied Bessarabia , and Ukrainian SSR. Estonia , Latvia and Lithuania were also annexed by

13776-480: Was instrumental in the Red Terror and Great Purge , but was brought under strict party control after Stalin's death. Under Yuri Andropov , the KGB engaged in the suppression of political dissent and maintained an extensive network of informers, reasserting itself as a political actor to some extent independent of the party-state structure, culminating in the anti-corruption campaign targeting high-ranking party officials in

13899-468: Was maintenance heavy, and malfunctions in the pressurization limited the altitude at which the aircraft could operate. Fifty-five nuclear-capable B-45s arrived in the United Kingdom in 1952. These were modified with a 1,200 gal (4,542 L) fuel tank in the aft bomb bay. Despite technical problems, these were Tactical Air Command 's first-line deterrent in Europe. The B-45B was a proposed variant of

14022-424: Was no large-scale fighting directly between the two superpowers , but they each supported major regional conflicts known as proxy wars . The conflict was based around the ideological and geopolitical struggle for global influence by these two superpowers, following their temporary alliance and victory against Nazi Germany in 1945. Aside from the nuclear arsenal development and conventional military deployment,

14145-450: Was not independent of the other branches of government. The Supreme Court supervised the lower courts ( People's Court ) and applied the law as established by the constitution or as interpreted by the Supreme Soviet. The Constitutional Oversight Committee reviewed the constitutionality of laws and acts. The Soviet Union used the inquisitorial system of Roman law , where the judge, procurator , and defence attorney collaborate to "establish

14268-488: Was not until 1994 (under the " fifty-year rule " of the Public Records Act 1958 ) that the existence of the spy missions became public knowledge. The first flight of the XB-45 was on February 24, 1947, from Muroc Army Air Field . A total of 131 test flights were flown by the three prototype aircraft, one being destroyed early on, killing two pilots. The USAF accepted one of the two surviving aircraft on July 30, 1948,

14391-459: Was only 54% of that of the United States, this means that the Soviet Union generated 1.5 times more pollution than the United States per unit of GNP. The Soviet Chernobyl disaster in 1986 was the first major accident at a civilian nuclear power plant . Unparalleled in the world, it resulted in a large number of radioactive isotopes being released into the atmosphere. Radioactive doses were scattered relatively far. Although long-term effects of

14514-477: Was repeatedly postponed. Formal recognition came when the new Labour Party came to power in 1924. All the other countries followed suit in opening trade relations. Henry Ford opened large-scale business relations with the Soviets in the late 1920s, hoping that it would lead to long-term peace. Finally, in 1933, the United States officially recognized the USSR, a decision backed by the public opinion and especially by US business interests that expected an opening of

14637-537: Was that "the Constitution was written not for you, but for American Negroes, so that they know how happy the lives of Soviet citizens are". Crime was determined not as the infraction of law, instead, it was determined as any action which could threaten the Soviet state and society. For example, a desire to make a profit could be interpreted as a counter-revolutionary activity punishable by death. The liquidation and deportation of millions of peasants in 1928–31

14760-587: Was the Russian responsibility to assist them. The Comintern was the weapon of choice. A few revolutions did break out, but they were quickly suppressed (the longest lasting one was in Hungary)—the Hungarian Soviet Republic —lasted only from 21 March 1919 to 1 August 1919. The Russian Bolsheviks were in no position to give any help. By 1921, Lenin, Trotsky, and Stalin realized that capitalism had stabilized itself in Europe and there would not be any widespread revolutions anytime soon. It became

14883-471: Was the final production variant of the B-45. The bombardier 's canopy was faired over and replaced with an oblique camera system. The RB-45C carried two 214 gal (810 L) external fuel tanks, or two JATO rockets. It could carry up to 12 cameras in four positions, or a single camera with a 100 in (2.5 m) focal length lens. The RB-45C first flew in April 1950, and was delivered from June 1950 to October 1951. Thirty-eight were built, including

15006-462: Was the only member of the four-man crew to parachute from the plane, although he is believed to have died while being held by either the Chinese or the Soviet Union. Because of the sensitivity typically surrounding such missions, much of the information surrounding this flight and similar intelligence activities has remained classified. Operation Fandango , sometimes called Operation Backbreaker, modified

15129-412: Was tracked by ground radar and came under antiaircraft fire. Applying full power, he immediately turned and headed for Germany, none too soon, as Soviet night fighters had been dispatched to hunt down his aircraft. Subsequent flights over Ukraine were carried out using English Electric Canberras under the codename Project Robin , operating at higher altitudes of around 54,000 ft (16,000 m). It

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