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(((dream – reality – vision)))
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Rilke again:
Have patience with everything that remains unsolved in your heart. Try to love the questions themselves, like locked rooms and like books written in a foreign language. Do not now look for the answers. They cannot now be given to you because you could not live them. It is a question of experiencing everything. At present you need to live the question. Perhaps you will gradually, without even noticing it, find yourself experiencing the answer, some distant day.
~ Rainer Maria Rilke, Letters to a Young Poet ~
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And last but not least:
Imagionation is the mother of all possibilities.
(I'm not absolutely sure, but I suppose C. G. Jung said or wrote this once.)
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''Immortals are never alien to one another.''
— Homer (The Odyssey)
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NO GIFS AND ANIMATED ICONS, PLEASE!
Die Geschichte von Kreta ist sehr bewegt
-Minoische Zeit etwa 3000 v. Chr. bis 13.Jh v Chr
-archaische Zeitalter : 6. bis zum 4. Jahrhundert
-Byzantinisches Reich (395–1204)und Sarazenenherrschaft (826–961)
- Venezianische Herrschaft (1204–1669)
- Osmanische Herrschaft (1669–1897)
- De-facto-Unabhängigkeit (1898–1913)
- Vereinigung mit Griechenland (seit 1913)
- Minoan-Mycenaean Crete(3000-1300 BC)
- Classical, Hellenistic, Roman, Byzantine and Arab Crete(395-1204)
- Venetian Crete (1205–1669)
-Ottoman Crete (1669–1898)
- Independence(1898-1913)
-Crete was unified with mainland Greece(1913)
(Wikipedia)
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Im Straßenbild sieht man noch Minarette und Moscheen , aber die die meisten wurden einem anderen Zweck zugeführt. Geschichte kann man aber nicht ausradieren und ein friedlicher, harmonischer Mix aus Religionen, Architekturen, Kulturen kann doch nur bereichern.
There are still minarets and mosques in the street, but most of them have been brought to a different purpose. But you can not eradicate history and a peaceful, harmonious mix of religions, architecture, cultures can only enrich
...this is one of my oldest images...but i relly love it...i never seen a scene like this before and after in berlin...she was in the park with her husband and kids...they played basketball...suddlendy she went up and through a few balls...luck that i have my camera with me...
...i hope some more people view and like it...
@{-->-- ... thank you all very much my friends...:)))
KMHK 833, 45 minutes of integration into SHO with Planewave CDK24 610/3962 f 6/5 telescope, QHY 600M Pro camera, are 9 shots, 3x300 seconds for each filter, processing with Pixinsight and Photoshop. All data and shots were captured with Telescope Live. The astronomical object called KMHK 833 is a cluster of stars
Leica MP
Leica Elmarit 28mm f/2.8 III
Kodak T-Max 100
Ars Imago FD 1+39
6 min 20°C
Scan from negative film
2024-02-07 0840 UTC
Winter Star Party, Scout Key, Florida
Camera: ZWO ASI 2600MC
Guide Camera: ZWO ASI 290MM
Telescope: Vixen ED80 f/6.5
Mount: Losmandy G11
Integration: 80 minutes
Capture: NINA
Postprocessing: Pixinsight
A new tech term for ancient technology. This is a granary near the Moon House Ruin in the Cedar Mesa area of Utah. I liked how the walls of the granary grew out of the cliffs as an extension of the natural rock.
I am taking a different turn in photography.
I love incorporating art with photographs so now I play with my iPad and Laminar software.
Thus allows me to layer my bits and pieces hopefully into a more interesting landscape.
Spoonbill between Greylag Geese and Canadian Geese in the nature reserve Geltinger Birk, Baltic Sea
Löffler zwischen Graugänsen und Kanadagänsen im Naturschutzgebiet Geltinger Birk, Ostsee
Berlin (/bərˈlɪn/, German: [bɛɐ̯ˈliːn] ( listen)) is the capital of Germany, and one of the 16 states of Germany. With a population of 3.5 million people,[4] Berlin is Germany's largest city. It is the second most populous city proper and the seventh most populous urban area in the European Union.[5] Located in northeastern Germany on the banks of Rivers Spree and Havel, it is the centre of the Berlin-Brandenburg Metropolitan Region, which has about six million residents from over 180 nations.[6][7][8][9] Due to its location in the European Plain, Berlin is influenced by a temperate seasonal climate. Around one-third of the city's area is composed of forests, parks, gardens, rivers and lakes.[10]
First documented in the 13th century, Berlin became the capital of the Margraviate of Brandenburg (1417-1701), the Kingdom of Prussia (1701–1918), the German Empire (1871–1918), the Weimar Republic (1919–1933) and the Third Reich (1933–1945).[11] Berlin in the 1920s was the third largest municipality in the world.[12] After World War II, the city was divided; East Berlin became the capital of East Germany while West Berlin became a de facto West German exclave, surrounded by the Berlin Wall (1961–1989).[13] Following German reunification in 1990, the city was once more designated as the capital of all Germany, hosting 158 foreign embassies.[14]
Berlin is a world city of culture, politics, media, and science.[15][16][17][18] Its economy is based on high-tech firms and the service sector, encompassing a diverse range of creative industries, research facilities, media corporations, and convention venues.[19][20] Berlin serves as a continental hub for air and rail traffic and has a highly complex public transportation network. The metropolis is a popular tourist destination.[21] Significant industries also include IT, pharmaceuticals, biomedical engineering, clean tech, biotechnology, construction, and electronics.
Modern Berlin is home to renowned universities, orchestras, museums, entertainment venues, and is host to many sporting events.[22] Its urban setting has made it a sought-after location for international film productions.[23] The city is well known for its festivals, diverse architecture, nightlife, contemporary arts, and a high quality of living.[24] Over the last decade Berlin has seen the emergence of a cosmopolitan entrepreneurial scene.[
History
Etymology
The origin of the name Berlin is uncertain. It may have its roots in the language of West Slavic inhabitants of the area of today's Berlin, and may be related to the Old Polabian stem berl-/birl- ("swamp").[26] Folk etymology connects the name to the German word for bear, Bär. A bear also appears in the coat of arms of the city.[
12th to 16th centuries
The earliest evidence of settlements in the area of today's Berlin are a wooden rod dated from approximately 1192[28] and leftovers of wooden houseparts dated to 1174 found in a 2012 digging in Berlin Mitte.[29] The first written records of towns in the area of present-day Berlin date from the late 12th century. Spandau is first mentioned in 1197 and Köpenick in 1209, although these areas did not join Berlin until 1920.[30] The central part of Berlin can be traced back to two towns. Cölln on the Fischerinsel is first mentioned in a 1237 document, and Berlin, across the Spree in what is now called the Nikolaiviertel, is referenced in a document from 1244.[28] The former (1237) is considered to be the founding date of the city.[31] The two towns over time formed close economic and social ties. In 1307 they formed an alliance with a common external policy, their internal administrations still being separated.[32][33]
In 1415, Frederick I became the elector of the Margraviate of Brandenburg, which he ruled until 1440.[34] During the 15th century his successors would establish Berlin-Cölln as capital of the margraviate, and subsequent members of the Hohenzollern family ruled until 1918 in Berlin, first as electors of Brandenburg, then as kings of Prussia, and eventually as German emperors. In 1443, Frederick II Irontooth started the construction of a new royal palace in the twin city Berlin-Cölln. The protests of the town citizens against the building culminated in 1448, in the "Berlin Indignation" ("Berliner Unwille").[35][36] This protest was not successful, however, and the citizenry lost many of its political and economic privileges. After the royal palace was finished in 1451, it gradually came into use. From 1470, with the new elector Albrecht III Achilles, Berlin-Cölln became the new royal residence.[33] Officially, the Berlin-Cölln palace became permanent residence of the Brandenburg electors of the Hohenzollerns from 1486, when John Cicero came to power.[37] Berlin-Cölln, however, had to give up its status as a free Hanseatic city. In 1539, the electors and the city officially became Lutheran.[
17th to 19th centuries
The Thirty Years' War between 1618 and 1648 devastated Berlin. One third of its houses were damaged or destroyed, and the city lost half of its population.[39] Frederick William, known as the "Great Elector", who had succeeded his father George William as ruler in 1640, initiated a policy of promoting immigration and religious tolerance.[40] With the Edict of Potsdam in 1685, Frederick William offered asylum to the French Huguenots.[41] By 1700, approximately 30 percent of Berlin's residents were French, because of the Huguenot immigration.[42] Many other immigrants came from Bohemia, Poland, and Salzburg.[43]
Since 1618, the Margraviate of Brandenburg had been in personal union with the Duchy of Prussia. In 1701, however, the dual state formed the Kingdom of Prussia, as Frederick III, Elector of Brandenburg now crowned himself as king Frederick I in Prussia. Berlin became the capital of the new Kingdom. This was a successful attempt to centralise the capital in the very outspread state, and it was the first time the city began to grow. In 1709 Berlin merged with the four cities of Cölln, Friedrichswerder, Friedrichstadt and Dorotheenstadt under the name Berlin, "Haupt- und Residenzstadt Berlin".[32]
In 1740, Frederick II, known as Frederick the Great (1740–1786), came to power.[44] Under the rule of Frederick II, Berlin became a center of the Enlightenment.[45] Following France's victory in the War of the Fourth Coalition, Napoleon Bonaparte marched into Berlin in 1806, but granted self-government to the city.[46] In 1815, the city became part of the new Province of Brandenburg.[47]
The Industrial Revolution transformed Berlin during the 19th century; the city's economy and population expanded dramatically, and it became the main railway hub and economic centre of Germany. Additional suburbs soon developed and increased the area and population of Berlin. In 1861, neighboring suburbs including Wedding, Moabit and several others were incorporated into Berlin.[48] In 1871, Berlin became capital of the newly founded German Empire.[49] In 1881, it became a city district separate from Brandenburg.[50]
20th to 21st centuries
In the early 20th century, Berlin had become a fertile ground for the German Expressionist movement.[51] In fields such as architecture, painting and cinema new forms of artistic styles were invented. At the end of World War I in 1918, a republic was proclaimed by Philipp Scheidemann at the Reichstag building. In 1920, the Greater Berlin Act incorporated dozens of suburban cities, villages, and estates around Berlin into an expanded city. The act increased the area of Berlin from 66 to 883 km2 (25 to 341 sq mi). The population almost doubled and Berlin had a population of around four million. During the Weimar era, Berlin underwent political unrest due to economic uncertainties, but also became a renowned center of the Roaring Twenties. The metropolis experienced its heyday as a major world capital and was known for its leadership roles in science, technology, the humanities, city planning, film, higher education, government, and industries. Albert Einstein rose to public prominence during his years in Berlin, being awarded the Nobel Prize for Physics in 1921.
In 1933, Adolf Hitler and the Nazi Party came to power. NSDAP rule effectively destroyed Berlin's Jewish community, which had numbered 160,000, representing one-third of all Jews in the country. Berlin's Jewish population fell to about 80,000 as a result of emigration between 1933 and 1939. After Kristallnacht in 1938, thousands of the city's persecuted groups were imprisoned in the nearby Sachsenhausen concentration camp or, starting in early 1943, were shipped to death camps, such as Auschwitz.[52] During World War II, large parts of Berlin were destroyed in the 1943–45 air raids and during the Battle of Berlin. Around 125,000 civilians were killed.[53] After the end of the war in Europe in 1945, Berlin received large numbers of refugees from the Eastern provinces. The victorious powers divided the city into four sectors, analogous to the occupation zones into which Germany was divided. The sectors of the Western Allies (the United States, the United Kingdom and France) formed West Berlin, while the Soviet sector formed East Berlin.[54]
All four Allies shared administrative responsibilities for Berlin. However, in 1948, when the Western Allies extended the currency reform in the Western zones of Germany to the three western sectors of Berlin, the Soviet Union imposed a blockade on the access routes to and from West Berlin, which lay entirely inside Soviet-controlled territory. The Berlin airlift, conducted by the three western Allies, overcame this blockade by supplying food and other supplies to the city from June 1948 to May 1949.[55] In 1949, the Federal Republic of Germany was founded in West Germany and eventually included all of the American, British, and French zones, excluding those three countries' zones in Berlin, while the Marxist-Leninist German Democratic Republic was proclaimed in East Germany. West Berlin officially remained an occupied city, but it politically was aligned with the Federal Republic of Germany despite West Berlin's geographic isolation. Airline service to West Berlin was granted only to American, British, and French airlines.
The founding of the two German states increased Cold War tensions. West Berlin was surrounded by East German territory, and East Germany proclaimed the Eastern part as its capital, a move that was not recognized by the western powers. East Berlin included most of the historic center of the city. The West German government established itself in Bonn.[56] In 1961, East Germany began the building of the Berlin Wall between East and West Berlin, and events escalated to a tank standoff at Checkpoint Charlie. West Berlin was now de facto a part of West Germany with a unique legal status, while East Berlin was de facto a part of East Germany. John F. Kennedy gave his "Ich bin ein Berliner" – speech in 1963 underlining the US support for the Western part of the city. Berlin was completely divided. Although it was possible for Westerners to pass from one to the other side through strictly controlled checkpoints, for most Easterners travel to West Berlin or West Germany was prohibited. In 1971, a Four-Power agreement guaranteed access to and from West Berlin by car or train through East Germany.[57]
In 1989, with the end of the Cold War and pressure from the East German population, the Berlin Wall fell on 9 November and was subsequently mostly demolished. Today, the East Side Gallery preserves a large portion of the Wall. On 3 October 1990, the two parts of Germany were reunified as the Federal Republic of Germany, and Berlin again became the official German capital. In 1991, the German Parliament, the Bundestag, voted to move the seat of the (West) German capital from Bonn to Berlin, which was completed in 1999. Berlin's 2001 administrative reform merged several districts. The number of boroughs was reduced from 23 to 12. In 2006, the FIFA World Cup Final was held in Berlin.
Geography
Topography
Berlin is situated in northeastern Germany, in an area of low-lying marshy woodlands with a mainly flat topography, part of the vast Northern European Plain which stretches all the way from northern France to western Russia. The Berliner Urstromtal (an ice age glacial valley), between the low Barnim Plateau to the north and the Teltow Plateau to the south, was formed by meltwater flowing from ice sheets at the end of the last Weichselian glaciation. The Spree follows this valley now. In Spandau, Berlin's westernmost borough, the Spree empties into the river Havel, which flows from north to south through western Berlin. The course of the Havel is more like a chain of lakes, the largest being the Tegeler See and Großer Wannsee. A series of lakes also feeds into the upper Spree, which flows through the Großer Müggelsee in eastern Berlin.[58]
Substantial parts of present-day Berlin extend onto the low plateaus on both sides of the Spree Valley. Large parts of the boroughs Reinickendorf and Pankow lie on the Barnim Plateau, while most of the boroughs of Charlottenburg-Wilmersdorf, Steglitz-Zehlendorf, Tempelhof-Schöneberg, and Neukölln lie on the Teltow Plateau.
The borough of Spandau lies partly within the Berlin Glacial Valley and partly on the Nauen Plain, which stretches to the west of Berlin. The highest elevations in Berlin are the Teufelsberg and the Müggelberge in the city's outskirts, and in the center the Kreuzberg. While the latter measures 66 m (217 ft) above sea level, the former both have an elevation of about 115 m (377 ft). The Teufelsberg is in fact an artificial hill composed of a pile of rubble from the ruins of World War II.
Climate
Berlin has an Maritime temperate climate (Cfb) according to the Köppen climate classification system.[59] There are significant influences of mild continental climate due to its inland position, with frosts being common in winter and there being larger temperature differences between seasons than typical for many oceanic climates.
Summers are warm and sometimes humid with average high temperatures of 22–25 °C (72–77 °F) and lows of 12–14 °C (54–57 °F). Winters are cool with average high temperatures of 3 °C (37 °F) and lows of −2 to 0 °C (28 to 32 °F). Spring and autumn are generally chilly to mild. Berlin's built-up area creates a microclimate, with heat stored by the city's buildings. Temperatures can be 4 °C (7 °F) higher in the city than in the surrounding areas.[60]
Annual precipitation is 570 millimeters (22 in) with moderate rainfall throughout the year. Snowfall mainly occurs from December through March.
Cityscape
Berlin's history has left the city with a highly eclectic array of architecture and buildings. The city's appearance today is predominantly shaped by the key role it played in Germany's history in the 20th century. Each of the national governments based in Berlin — the Kingdom of Prussia, the 1871 German Empire, the Weimar Republic, Nazi Germany, East Germany, and now the reunified Germany — initiated ambitious (re-)construction programs, with each adding its own distinctive style to the city's architecture.
Berlin was devastated by bombing raids, fires and street battles during World War II, and many of the buildings that had remained after the war were demolished in the post-war period in both West and East Berlin. Much of this demolition was initiated by municipal architecture programs to build new residential or business quarters and main roads. Many ornaments of pre-war buildings were destroyed following modernist dogmas. While in both systems and in reunified Berlin, various important heritage monuments were also (partly) reconstructed, including the Forum Fridericianum with e.g., the State Opera (1955), Charlottenburg Palace (1957), the main monuments of the Gendarmenmarkt (1980s), Kommandantur (2003) and the project to reconstruct the baroque facades of the City Palace. A number of new buildings is inspired by historical predecessors or the general classical style of Berlin, such as Hotel Adlon.
Clusters of high-rise buildings emerge at e.g., Potsdamer Platz, City West and Alexanderplatz. Berlin has three of the top 40 tallest buildings in Germany.
Architecture
The Brandenburg Gate is an iconic landmark of Berlin and Germany. The Reichstag building is the traditional seat of the German Parliament, was remodeled by British architect Norman Foster in the 1990s and features a glass dome over the session area, which allows free public access to the parliamentary proceedings and magnificent views of the city.
The East Side Gallery is an open-air exhibition of art painted directly on the last existing portions of the Berlin Wall. It is the largest remaining evidence of the city's historical division.
The Gendarmenmarkt, a neoclassical square in Berlin the name of which derives from the headquarters of the famous Gens d'armes regiment located here in the 18th century, is bordered by two similarly designed cathedrals, the Französischer Dom with its observation platform and the Deutscher Dom. The Konzerthaus (Concert Hall), home of the Berlin Symphony Orchestra, stands between the two cathedrals.
The Museum Island in the River Spree houses five museums built from 1830 to 1930 and is a UNESCO World Heritage site. Restoration and the construction of a main entrance to all museums, as well as the reconstruction of the Stadtschloss is continuing.[65][66] Also located on the island and adjacent to the Lustgarten and palace is Berlin Cathedral, emperor William II's ambitious attempt to create a Protestant counterpart to St. Peter's Basilica in Rome. A large crypt houses the remains of some of the earlier Prussian royal family. St. Hedwig's Cathedral is Berlin's Roman Catholic cathedral.
Unter den Linden is a tree-lined east–west avenue from the Brandenburg Gate to the site of the former Berliner Stadtschloss, and was once Berlin's premier promenade. Many Classical buildings line the street and part of Humboldt University is located there. Friedrichstraße was Berlin's legendary street during the Golden Twenties. It combines 20th-century traditions with the modern architecture of today's Berlin.
Potsdamer Platz is an entire quarter built from scratch after 1995 after the Wall came down.[67] To the west of Potsdamer Platz is the Kulturforum, which houses the Gemäldegalerie, and is flanked by the Neue Nationalgalerie and the Berliner Philharmonie. The Memorial to the Murdered Jews of Europe, a Holocaust memorial, is situated to the north.[68]
The area around Hackescher Markt is home to the fashionable culture, with countless clothing outlets, clubs, bars, and galleries. This includes the Hackesche Höfe, a conglomeration of buildings around several courtyards, reconstructed around 1996. The nearby New Synagogue is the center of Jewish culture.
The Straße des 17. Juni, connecting the Brandenburg Gate and Ernst-Reuter-Platz, serves as the central East-West-Axis. Its name commemorates the uprisings in East Berlin of 17 June 1953. Approximately half-way from the Brandenburg Gate is the Großer Stern, a circular traffic island on which the Siegessäule (Victory Column) is situated. This monument, built to commemorate Prussia's victories, was relocated 1938–39 from its previous position in front of the Reichstag.
The Kurfürstendamm is home to some of Berlin's luxurious stores with the Kaiser Wilhelm Memorial Church at its eastern end on Breitscheidplatz. The church was destroyed in the Second World War and left in ruins. Nearby on Tauentzienstraße is KaDeWe, claimed to be continental Europe's largest department store. The Rathaus Schöneberg, where John F. Kennedy made his famous "Ich bin ein Berliner!" speech, is situated in Tempelhof-Schöneberg.
West of the center, Schloss Bellevue is the residence of the German President. Schloss Charlottenburg, which was burnt out in the Second World War is the largest historical palace in Berlin.
The Funkturm Berlin is a 150 m (490 ft) tall lattice radio tower at the fair area, built between 1924 and 1926. It is the only observation tower which stands on insulators and has a restaurant 55 m (180 ft) and an observation deck 126 m (413 ft) above ground, which is reachable by a windowed elevator.
Demographics
On 31 December 2014, the city-state of Berlin had a population of 3,562,166 registered inhabitants[4] in an area of 891.85 km2 (344.35 sq mi).[69] The city's population density was 3,994 inhabitants per km2. Berlin is the second most populous city proper in the EU. The urban area of Berlin comprised about 4 million people making it the seventh most populous urban area in the European Union.[5] The metropolitan area of the Berlin-Brandenburg region was home to about 4.5 million in an area of 5,370 km2 (2,070 sq mi). In 2004, the Larger Urban Zone was home to about 5 million people in an area of 17,385 km2 (6,712 sq mi).[9] The entire Berlin-Brandenburg capital region has a population of 6 million.[70]
National and international migration into the city has a long history. In 1685, following the revocation of the Edict of Nantes in France, the city responded with the Edict of Potsdam, which guaranteed religious freedom and tax-free status to French Huguenot refugees for ten years. The Greater Berlin Act in 1920 incorporated many suburbs and surrounding cities of Berlin. It formed most of the territory that comprises modern Berlin and increased the population from 1.9 million to 4 million.
Active immigration and asylum politics in West Berlin triggered waves of immigration in the 1960s and 1970s. Currently, Berlin is home to about 200,000 Turks,[71] making it the largest Turkish community outside of Turkey. In the 1990s the Aussiedlergesetze enabled immigration to Germany of some residents from the former Soviet Union. Today ethnic Germans from countries of the former Soviet Union make up the largest portion of the Russian-speaking community.[72] The last decade experienced an influx from various Western countries and some African regions.[73] Young Germans, EU-Europeans and Israelis have settled in the city.[
International communities
In December 2013, 538,729 residents (15.3% of the population) were of foreign nationality, originating from over 180 different countries.[76] Another estimated 460,000 citizens in 2013 are descendants of international migrants and have either become naturalized German citizens or obtained citizenship by virtue of birth in Germany.[77] In 2008, about 25%–30% of the population was of foreign origin.[78] 45 percent of the residents under the age of 18 have foreign roots.[79] Berlin is estimated to have from 100,000 to 250,000 non-registered inhabitants.[80]
There are more than 25 non-indigenous communities with a population of at least 10,000 people, including Turkish, Polish, Russian, Lebanese, Palestinian, Serbian, Italian, Bosnian, Vietnamese, American, Romanian, Bulgarian, Chinese, Austrian, Ghanaian, Ukrainian, French, British, Spanish, Israeli, Thai, Iranian, Egyptian and Syrian communities.
The most-commonly-spoken foreign languages in Berlin are Turkish, English, Russian, Arabic, Polish, Kurdish, Vietnamese, Serbian, Croatian and French. Turkish, Arabic, Kurdish, Serbian and Croatian are heard more often in the western part, due to the large Middle Eastern and former-Yugoslavian communities. English, Vietnamese, Russian, and Polish have more native speakers in eastern Berlin.
Religion
More than 60% of Berlin residents have no registered religious affiliation.[82] The largest denominations in 2010 were the Protestant regional church body of the Evangelical Church of Berlin-Brandenburg-Silesian Upper Lusatia (EKBO) (a church of united administration comprising mostly Lutheran, and few Reformed and United Protestant congregations; EKBO is a member of the umbrellas Evangelical Church in Germany (EKD) and Union Evangelischer Kirchen (UEK)) with 18.7% of the population,[83] and the Roman Catholic Church with 9.1% of registered members.[83] About 2.7% of the population identify with other Christian denominations (mostly Eastern Orthodox)[84] and 8.1% are Muslims.[85] 0.9% of Berliners belong to other religions.[86] Approximately 80% of the 12,000 (0.3%) registered Jews now residing in Berlin[84] have come from the former Soviet Union.
Berlin is the seat of the Roman Catholic archbishop of Berlin and EKBO's elected chairperson is titled bishop of EKBO. Furthermore, Berlin is the seat of many Orthodox cathedrals, such as the Cathedral of St. Boris the Baptist, one of the two seats of the Bulgarian Orthodox Diocese of Western and Central Europe, and the Resurrection of Christ Cathedral of the Diocese of Berlin (Patriarchate of Moscow).
The faithful of the different religions and denominations maintain many places of worship in Berlin. The Independent Evangelical Lutheran Church has eight parishes of different sizes in Berlin.[87] There are 36 Baptist congregations (within Union of Evangelical Free Church Congregations in Germany), 29 New Apostolic Churches, 15 United Methodist churches, eight Free Evangelical Congregations, six congregations of The Church of Jesus Christ of Latter-day Saints, an Old Catholic church, and an Anglican church in Berlin.
Berlin has 76 mosques (including three Ahmadiyya mosques), 11 synagogues, and two Buddhist temples, in addition to a number of humanist and atheist groups.
Government
City state
Since the reunification on 3 October 1990, Berlin has been one of the three city states in Germany among the present 16 states of Germany. The city and state parliament is the House of Representatives (Abgeordnetenhaus), which currently has 141 seats. Berlin's executive body is the Senate of Berlin (Senat von Berlin). The Senate of Berlin consists of the Governing Mayor (Regierender Bürgermeister) and up to eight senators holding ministerial positions, one of them holding the official title "Mayor" (Bürgermeister) as deputy to the Governing Mayor.
The Social Democratic Party (SPD) and The Left (Die Linke) took control of the city government after the 2001 state election and won another term in the 2006 state election.[88] Since the 2011 state election, there has been a coalition of the Social Democratic Party with the Christian Democratic Union, and for the first time ever, the Pirate Party won seats in a state parliament in Germany.
The Governing Mayor is simultaneously Lord Mayor of the city (Oberbürgermeister der Stadt) and Prime Minister of the Federal State (Ministerpräsident des Bundeslandes). The office of Berlin's Governing Mayor is in the Rotes Rathaus (Red City Hall). Since 2014 this office has been held by Michael Müller of the SPD.[89] On 26 August 2014, Wowereit announced his resignation as of 11 December 2014.[90]
The total annual state budget of Berlin in 2007 exceeded €20.5 ($28.7) billion including a budget surplus of €80 ($112) million.[91] The total budget included an estimated amount of €5.5 ($7.7) bn, which is directly financed by either the German government or the German Bundesländer.[
Boroughs
Berlin is subdivided into twelve boroughs (Bezirke). Each borough contains a number of localities (Ortsteile), which often have historic roots in older municipalities that predate the formation of Greater Berlin on 1 October 1920 and became urbanized and incorporated into the city. Many residents strongly identify with their localities or boroughs. At present Berlin consists of 96 localities, which are commonly made up of several city neighborhoods—called Kiez in the Berlin dialect—representing small residential areas.
Each borough is governed by a borough council (Bezirksamt) consisting of five councilors (Bezirksstadträte) including the borough mayor (Bezirksbürgermeister). The borough council is elected by the borough assembly (Bezirksverordnetenversammlung). The boroughs of Berlin are not independent municipalities. The power of borough administration is limited and subordinate to the Senate of Berlin. The borough mayors form the council of mayors (Rat der Bürgermeister), led by the city's governing mayor, which advises the senate. The localities have no local government bodies.
Sister cities
Berlin maintains official partnerships with 17 cities.[93] Town twinning between Berlin and other cities began with sister city Los Angeles in 1967. East Berlin's partnerships were canceled at the time of German reunification and later partially reestablished. West Berlin's partnerships had previously been restricted to the borough level. During the Cold War era, the partnerships had reflected the different power blocs, with West Berlin partnering with capitals in the West, and East Berlin mostly partnering with cities from the Warsaw Pact and its allies.
There are several joint projects with many other cities, such as Beirut, Belgrade, São Paulo, Copenhagen, Helsinki, Johannesburg, Mumbai, Oslo, Shanghai, Seoul, Sofia, Sydney, New York City and Vienna. Berlin participates in international city associations such as the Union of the Capitals of the European Union, Eurocities, Network of European Cities of Culture, Metropolis, Summit Conference of the World's Major Cities, and Conference of the World's Capital Cities. Berlin's official sister cities are:
Capital city
Berlin is the capital of the Federal Republic of Germany. The President of Germany, whose functions are mainly ceremonial under the German constitution, has his official residence in Schloss Bellevue.[97] Berlin is the seat of the German executive, housed in the Chancellery, the Bundeskanzleramt. Facing the Chancellery is the Bundestag, the German Parliament, housed in the renovated Reichstag building since the government moved back to Berlin in 1998. The Bundesrat ("federal council", performing the function of an upper house) is the representation of the Federal States (Bundesländer) of Germany and has its seat at the former Prussian House of Lords.
Though most of the ministries are seated in Berlin, some of them, as well as some minor departments, are seated in Bonn, the former capital of West Germany. Discussions to move the remaining branches continue.[98] The ministries and departments of Defence, Justice and Consumer Protection, Finance, Interior, Foreign, Economic Affairs and Energy, Labour and Social Affairs , Family Affairs, Senior Citizens, Women and Youth, Environment, Nature Conservation, Building and Nuclear Safety, Food and Agriculture, Economic Cooperation and Development, Health, Transport and Digital Infrastructure and Education and Research are based in the capital.
Berlin hosts 158 foreign embassies as well as the headquarters of many think tanks, trade unions, non-profit organizations, lobbying groups, and professional associations. Due to the influence and international partnerships of the Federal Republic of Germany as a state, the capital city has become a venue for German and European affairs. Frequent official visits, and diplomatic consultations among governmental representatives and national leaders are common in contemporary Berlin.
Economy
In 2013, the nominal GDP of the citystate Berlin experienced a growth rate of 1.2% (0.6% in Germany) and totaled €109.2 (~$142) billion.[99] Berlin's economy is dominated by the service sector, with around 80% of all companies doing business in services. The unemployment rate reached a 20-year low in June 2014 and stood at 11.0% .[100]
Important economic sectors in Berlin include life sciences, transportation, information and communication technologies, media and music, advertising and design, biotechnology, environmental services, construction, e-commerce, retail, hotel business, and medical engineering.[101]
Research and development have economic significance for the city. The metropolitan region ranks among the top-3 innovative locations in the EU.[102] The Science and Business Park in Adlershof is the largest technology park in Germany measured by revenue.[103] Within the Eurozone, Berlin has become a center for business relocation and international investments.[
Companies
Many German and international companies have business or service centers in the city. For some years Berlin has been recognized as a center of business founders in Europe.[105] Among the 10 largest employers in Berlin are the City-State of Berlin, Deutsche Bahn, the hospital provider Charité and Vivantes, the local public transport provider BVG, and Deutsche Telekom.
Daimler manufactures cars, and BMW builds motorcycles in Berlin. Bayer Health Care and Berlin Chemie are major pharmaceutical companies headquartered in the city. The second largest German airline Air Berlin is based there as well.[106]
Siemens, a Global 500 and DAX-listed company is partly headquartered in Berlin. The national railway operator Deutsche Bahn and the MDAX-listed firms Axel Springer SE and Zalando have their headquarters in the central districts.[107] Berlin has a cluster of rail technology companies and is the German headquarter or site to Bombardier Transportation,[108] Siemens Mobility,[109] Stadler Rail and Thales Transportation.[
Tourism and conventions
Berlin had 788 hotels with 134,399 beds in 2014.[111] The city recorded 28.7 million overnight hotel stays and 11.9 million hotel guests in 2014.[111] Tourism figures have more than doubled within the last ten years and Berlin has become the third most-visited city destination in Europe.
Berlin is among the top three congress cities in the world and home to Europe's biggest convention center, the Internationales Congress Centrum (ICC) at the Messe Berlin.[19] Several large-scale trade fairs like the consumer electronics trade fair IFA, the ILA Berlin Air Show, the Berlin Fashion Week (including the Bread and Butter tradeshow), the Green Week, the transport fair InnoTrans, the tourism fair ITB and the adult entertainment and erotic fair Venus are held annually in the city, attracting a significant number of business visitors.
Creative industries
Industries that do business in the creative arts and entertainment are an important and sizable sector of the economy of Berlin. The creative arts sector comprises music, film, advertising, architecture, art, design, fashion, performing arts, publishing, R&D, software,[112] TV, radio, and video games. Around 22,600 creative enterprises, predominantly SMEs, generated over 18,6 billion euro in revenue. Berlin's creative industries have contributed an estimated 20 percent of Berlin's gross domestic product in 2005.[
Media
Berlin is home to many international and regional television and radio stations.[114] The public broadcaster RBB has its headquarters in Berlin as well as the commercial broadcasters MTV Europe, VIVA, and N24. German international public broadcaster Deutsche Welle has its TV production unit in Berlin, and most national German broadcasters have a studio in the city including ZDF and RTL.
Berlin has Germany's largest number of daily newspapers, with numerous local broadsheets (Berliner Morgenpost, Berliner Zeitung, Der Tagesspiegel), and three major tabloids, as well as national dailies of varying sizes, each with a different political affiliation, such as Die Welt, Neues Deutschland, and Die Tageszeitung. The Exberliner, a monthly magazine, is Berlin's English-language periodical focusing on arts and entertainment. Berlin is also the headquarters of the two major German-language publishing houses Walter de Gruyter and Springer, each of which publish books, periodicals, and multimedia products.
Berlin is an important centre in the European and German film industry.[115] It is home to more than 1000 film and television production companies, 270 movie theaters, and around 300 national and international co-productions are filmed in the region every year.[102] The historic Babelsberg Studios and the production company UFA are located outside Berlin in Potsdam. The city is also home of the European Film Academy and the German Film Academy, and hosts the annual Berlin Film Festival. With around 500,000 admissions it is the largest publicly attended film festival in the world.
Infrastructure
Transport
Berlin's transport infrastructure is highly complex, providing a diverse range of urban mobility.[118] A total of 979 bridges cross 197 km (122 mi) of inner-city waterways. 5,422 km (3,369 mi) of roads run through Berlin, of which 77 km (48 mi) are motorways ("Autobahn").[119] In 2013, 1.344 million motor vehicles were registered in the city.[119] With 377 cars per 1000 residents in 2013 (570/1000 in Germany), Berlin as a Western global city has one of the lowest numbers of cars per capita.
Long-distance rail lines connect Berlin with all of the major cities of Germany and with many cities in neighboring European countries. Regional rail lines provide access to the surrounding regions of Brandenburg and to the Baltic Sea. The Berlin Hauptbahnhof is the largest grade-separated railway station in Europe.[120] Deutsche Bahn runs trains to domestic destinations like Hamburg, Munich, Cologne and others. It also runs an airport express rail service, as well as trains to several international destinations, e.g., Vienna, Prague, Zürich, Warsaw and Amsterdam.
Public transport
Airports
Flights departing from Berlin serve 163 destinations around the globe
Berlin has two commercial airports. Berlin Tegel Airport (TXL), which lies within the city limits, and Schönefeld Airport (SXF), which is situated just outside Berlin's south-eastern border in the state of Brandenburg. Both airports together handled 26.3 million passengers in 2013. In 2014, 67 airlines served 163 destinations in 50 countries from Berlin.[122] Tegel Airport is an important transfer hub for Air Berlin as well as a focus city for Lufthansa and Germanwings, whereas Schönefeld serves as an important destination for airlines like easyJet.
Berlin Brandenburg Airport (BER) will replace Tegel as single commercial airport of Berlin.[123] The new airport will integrate old Schönefeld (SXF) facilities and is scheduled to open not before 2017. Because of the rapid passenger growth at Berlin airports the capacities at the BER are already considered too small for the projected demand.
Cycling
Berlin is well known for its highly developed bicycle lane system.[124] It is estimated that Berlin has 710 bicycles per 1000 residents. Around 500,000 daily bike riders accounted for 13% of total traffic in 2009.[125] Cyclists have access to 620 km (385 mi) of bicycle paths including approximately 150 km (93 mi) of mandatory bicycle paths, 190 km (118 mi) (120 miles) of off-road bicycle routes, 60 km (37 mi) of bicycle lanes on roads, 70 km (43 mi) of shared bus lanes which are also open to cyclists, 100 km (62 mi) of combined pedestrian/bike paths and 50 km (31 mi) of marked bicycle lanes on roadside pavements (or sidewalks).[
An Air Force Lockheed Martin F-22 "Raptor" assigned to the 3rd Wing flies over Joint Base Elmendorf-Richardson, Alaska, Feb. 27, 2018. The Lockheed Martin F-22 "Raptor" is the U.S. Air Force’s premium fifth-generation fighter asset.
From Wikipedia, the free encyclopedia
The Lockheed Martin F-22 "Raptor" is a fifth-generation, single-seat, twin-engine, all-weather stealth tactical fighter aircraft developed for the United States Air Force (USAF). The result of the USAF's Advanced Tactical Fighter (ATF) program, the aircraft was designed primarily as an air superiority fighter, but also has ground attack, electronic warfare, and signal intelligence capabilities. The prime contractor, Lockheed Martin, built most of the F-22's airframe and weapons systems and conducted final assembly, while Boeing provided the wings, aft fuselage, avionics integration, and training systems.
The aircraft was variously designated F-22 and F/A-22 before it formally entered service in December 2005 as the F-22A. Despite its protracted development and various operational issues, USAF officials consider the F-22 a critical component of the service's tactical air power. Its combination of stealth, aerodynamic performance, and situational awareness enable unprecedented air combat capabilities.
Service officials had originally planned to buy a total of 750 ATFs. In 2009, the program was cut to 187 operational production aircraft due to high costs, a lack of clear air-to-air missions due to delays in Russian and Chinese fighter programs, a ban on exports, and development of the more versatile F-35. The last F-22 was delivered in 2012.
Development
Origins
In 1981, the U.S. Air Force identified a requirement for an Advanced Tactical Fighter (ATF) to replace the F-15 "Eagle" and F-16 "Fighting Falcon". Code named "Senior Sky", this air-superiority fighter program was influenced by emerging worldwide threats, including new developments in Soviet air defense systems and the proliferation of the Su-27 "Flanker"- and MiG-29 "Fulcrum"-class of fighter aircraft. It would take advantage of the new technologies in fighter design on the horizon, including composite materials, lightweight alloys, advanced flight control systems, more powerful propulsion systems, and most importantly, stealth technology. In 1983, the ATF concept development team became the System Program Office (SPO) and managed the program at Wright-Patterson Air Force Base. The demonstration and validation (Dem/Val) request for proposals (RFP) was issued in September 1985, with requirements placing strong emphasis on stealth and supercruise. Of the seven bidding companies, Lockheed and Northrop were selected on 31 October 1986. Lockheed teamed with Boeing and General Dynamics while Northrop teamed with McDonnell Douglas, and the two contractor teams undertook a 50-month Dem/Val phase, culminating in the flight test of two technology demonstrator prototypes, the YF-22 and the YF-23, respectively.
Dem/Val was focused on risk reduction and technology development plans over specific aircraft designs. Contractors made extensive use of analytical and empirical methods, including computational fluid dynamics, wind-tunnel testing, and radar cross-section calculations and pole testing; the Lockheed team would conduct nearly 18,000 hours of wind-tunnel testing. Avionics development was marked by extensive testing and prototyping and supported by ground and flying laboratories. During Dem/Val, the SPO used the results of performance and cost trade studies conducted by contractor teams to adjust ATF requirements and delete ones that were significant weight and cost drivers while having marginal value. The short takeoff and landing (STOL) requirement was relaxed in order to delete thrust-reversers, saving substantial weight. As avionics was a major cost driver, side-looking radars were deleted, and the dedicated infra-red search and track (IRST) system was downgraded from multi-color to single color and then deleted as well. However, space and cooling provisions were retained to allow for future addition of these components. The ejection seat requirement was downgraded from a fresh design to the existing McDonnell Douglas ACES II. Despite efforts by the contractor teams to rein in weight, the takeoff gross weight estimate was increased from 50,000 lb (22,700 kg) to 60,000 lb (27,200 kg), resulting in engine thrust requirement increasing from 30,000 lbf (133 kN) to 35,000 lbf (156 kN) class.
Each team produced two prototype air vehicles for Dem/Val, one for each of the two engine options. The YF-22 had its maiden flight on 29 September 1990 and in flight tests achieved up to Mach 1.58 in supercruise. After the Dem/Val flight test of the prototypes, on 23 April 1991, Secretary of the USAF Donald Rice announced the Lockheed team as the winner of the ATF competition. The YF-23 design was considered stealthier and faster, while the YF-22, with its thrust vectoring nozzles, was more maneuverable as well as less expensive and risky. The aviation press speculated that the Lockheed team's design was also more adaptable to the U.S. Navy's Navalized Advanced Tactical Fighter (NATF), but by 1992, the Navy had abandoned NATF.
Production and procurement
As the program moved to full-scale development, or the Engineering & Manufacturing Development (EMD) stage, the production version had notable differences from the YF-22, despite having a broadly similar shape. The swept-back angle of the leading edge was decreased from 48° to 42°, while the vertical stabilizers were shifted rearward and decreased in area by 20%. To improve pilot visibility, the canopy was moved forward 7 inches (18 cm), and the engine intakes moved rearward 14 inches (36 cm). The shapes of the wing and stabilator trailing edges were refined to improve aerodynamics, strength, and stealth characteristics. Increasing weight during development caused slight reductions in range and maneuver performance.
Prime contractor Lockheed Martin Aeronautics manufactured the majority of the airframe and performed final assembly at Dobbins Air Reserve Base in Marietta, Georgia; program partner Boeing Defense, Space & Security provided additional airframe components as well as avionics integration and training systems. The first F-22, an EMD aircraft with tail number 4001, was unveiled at Marietta, Georgia, on 9 April 1997, and first flew on 7 September 1997. Production, with the first lot awarded in September 2000, supported over 1,000 subcontractors and suppliers from 46 states and up to 95,000 jobs, and spanned 15 years at a peak rate of roughly two airplanes per month. In 2006, the F-22 development team won the Collier Trophy, American aviation's most prestigious award. Due to the aircraft's advanced nature, contractors have been targeted by cyberattacks and technology theft.
The USAF originally envisioned ordering 750 ATFs at a total program cost of $44.3 billion and procurement cost of $26.2 billion in fiscal year (FY) 1985 dollars, with production beginning in 1994. The 1990 Major Aircraft Review led by Secretary of Defense Dick Cheney reduced this to 648 aircraft beginning in 1996. By 1997, funding instability had further cut the total to 339, which was again reduced to 277 by 2003. In 2004, the Department of Defense (DoD) further reduced this to 183 operational aircraft, despite the USAF's preference for 381. A multi-year procurement plan was implemented in 2006 to save $15 billion, with total program cost projected to be $62 billion for 183 F-22s distributed to seven combat squadrons. In 2008, Congress passed a defense spending bill that raised the total orders for production aircraft to 187.
The first two F-22s built were EMD aircraft in the Block 1.0 configuration for initial flight testing, while the third was a Block 2.0 aircraft built to represent the internal structure of production airframes and enabled it to test full flight loads. Six more EMD aircraft were built in the Block 10 configuration for development and upgrade testing, with the last two considered essentially production quality jets. Production for operational squadrons consisted of 37 Block 20 training aircraft and 149 Block 30/35 combat aircraft; one of the Block 35 aircraft is dedicated to flight sciences at Edwards Air Force Base.
The numerous new technologies in the F-22 resulted in substantial cost overruns and delays. Many capabilities were deferred to post-service upgrades, reducing the initial cost but increasing total program cost. As production wound down in 2011, the total program cost is estimated to be about $67.3 billion, with $32.4 billion spent on Research, Development, Test and Evaluation (RDT&E) and $34.9 billion on procurement and military construction (MILCON) in then year dollars. The incremental cost for an additional F-22 was estimated at about $138 million in 2009.
Ban on exports
The F-22 cannot be exported under US federal law to protect its stealth technology and other high-tech features. Customers for U.S. fighters are acquiring earlier designs such as the F-15 "Eagle" and F-16 "Fighting Falcon" or the newer F-35 "Lightning II", which contains technology from the F-22 but was designed to be cheaper, more flexible, and available for export. In September 2006, Congress upheld the ban on foreign F-22 sales. Despite the ban, the 2010 defense authorization bill included provisions requiring the DoD to prepare a report on the costs and feasibility for an F-22 export variant, and another report on the effect of F-22 export sales on U.S. aerospace industry.
Some Australian politicians and defense commentators proposed that Australia should attempt to purchase F-22s instead of the planned F-35s, citing the F-22's known capabilities and F-35's delays and developmental uncertainties. However, the Royal Australian Air Force (RAAF) determined that the F-22 was unable to perform the F-35's strike and close air support roles. The Japanese government also showed interest in the F-22 for its Replacement-Fighter program. The Japan Air Self-Defense Force (JASDF) would reportedly require fewer fighters for its mission if it obtained the F-22, thus reducing engineering and staffing costs. However, in 2009 it was reported that acquiring the F-22 would require increases to the Japanese government's defense budget beyond the historical 1 percent of its GDP. With the end of F-22 production, Japan chose the F-35 in December 2011. Israel also expressed interest, but eventually chose the F-35 because of the F-22's price and unavailability.
Production termination
Throughout the 2000s, the need for F-22s was debated, due to rising costs and the lack of relevant adversaries. In 2006, Comptroller General of the United States David Walker found that "the DoD has not demonstrated the need" for more investment in the F-22, and further opposition to the program was expressed by Secretary of Defense Donald Rumsfeld, Deputy Secretary of Defense Gordon R. England, Senator John McCain, and Chairman of U.S. Senate Committee on Armed Services Senator John Warner. The F-22 program lost influential supporters in 2008 after the forced resignations of Secretary of the Air Force Michael Wynne and the Chief of Staff of the Air Force General T. Michael Moseley.
In November 2008, Secretary of Defense Robert Gates stated that the F-22 was not relevant in post-Cold War conflicts such as irregular warfare operations in Iraq and Afghanistan, and in April 2009, under the new Obama Administration, he called for ending production in FY2011, leaving the USAF with 187 production aircraft. In July, General James Cartwright, Vice Chairman of the Joint Chiefs of Staff, stated to the Senate Committee on Armed Services his reasons for supporting termination of F-22 production. They included shifting resources to the multirole F-35 to allow proliferation of fifth-generation fighters for three service branches and preserving the F/A-18 production line to maintain the military's electronic warfare (EW) capabilities in the Boeing EA-18G "Growler". Issues with the F-22's reliability and availability also raised concerns. After President Obama threatened to veto further production, the Senate voted in July 2009 in favor of ending production and the House subsequently agreed to abide by the 187 production aircraft cap. Gates stated that the decision was taken in light of the F-35's capabilities, and in 2010, he set the F-22 requirement to 187 aircraft by lowering the number of major regional conflict preparations from two to one.
In 2010, USAF initiated a study to determine the costs of retaining F-22 tooling for a future Service Life Extension Program (SLEP). A RAND Corporation paper from this study estimated that restarting production and building an additional 75 F-22s would cost $17 billion, resulting in $227 million per aircraft, or $54 million higher than the flyaway cost. Lockheed Martin stated that restarting the production line itself would cost about $200 million. Production tooling and associated documentation were subsequently stored at the Sierra Army Depot, allowing the retained tooling to support the fleet life cycle. There were reports that attempts to retrieve this tooling found empty containers, but a subsequent audit found that the tooling was stored as expected.
Russian and Chinese fighter developments have fueled concern, and in 2009, General John Corley, head of Air Combat Command, stated that a fleet of 187 F-22s would be inadequate, but Secretary Gates dismissed General Corley's concern. In 2011, Gates explained that Chinese fifth-generation fighter developments had been accounted for when the number of F-22s was set, and that the U.S. would have a considerable advantage in stealth aircraft in 2025, even with F-35 delays. In December 2011, the 195th and final F-22 was completed out of 8 test EMD and 187 operational aircraft produced; the aircraft was delivered to the USAF on 2 May 2012.
In April 2016, the House Armed Services Committee (HASC) Tactical Air and Land Forces Subcommittee proposed legislation that would direct the Air Force to conduct a cost study and assessment associated with resuming production of the F-22. Since the production halt directed in 2009 by then Defense Secretary Gates, lawmakers and the Pentagon noted that air warfare systems of Russia and China were catching up to those of the U.S. Lockheed Martin has proposed upgrading the Block 20 training aircraft into combat-coded Block 30/35 versions as a way to increase numbers available for deployment. On 9 June 2017, the Air Force submitted their report to Congress stating they had no plans to restart the F-22 production line due to economic and operational issues; it estimated it would cost approximately $50 billion to procure 194 additional F-22s at a cost of $206–$216 million per aircraft, including approximately $9.9 billion for non-recurring start-up costs and $40.4 billion for aircraft procurement costs.
Upgrades
The first aircraft with combat-capable Block 3.0 software flew in 2001. Increment 2, the first upgrade program, was implemented in 2005 for Block 20 aircraft onward and enabled the employment of Joint Direct Attack Munitions (JDAM). Certification of the improved AN/APG-77(V)1 radar was completed in March 2007, and airframes from production Lot 5 onward are fitted with this radar, which incorporates air-to-ground modes. Increment 3.1 for Block 30 aircraft onward provided improved ground-attack capability through synthetic aperture radar mapping and radio emitter direction finding, electronic attack and Small Diameter Bomb (SDB) integration; testing began in 2009 and the first upgraded aircraft was delivered in 2011. To address oxygen deprivation issues, F-22s were fitted with an automatic backup oxygen system (ABOS) and modified life support system starting in 2012.
Increment 3.2 for Block 35 aircraft is a two-part upgrade process; 3.2A focuses on electronic warfare, communications and identification, while 3.2B includes geolocation improvements and a new stores management system to show the correct symbols for the AIM-9X and AIM-120D. To enable two-way communication with other platforms, the F-22 can use the Battlefield Airborne Communications Node (BACN) as a gateway. The planned Multifunction Advanced Data Link (MADL) integration was cut due to development delays and lack of proliferation among USAF platforms. The F-22 fleet is planned to start receiving Increment 3.2B as well as a software upgrade for cryptography capabilities and avionics stability in May 2019. A Multifunctional Information Distribution System-Joint (MIDS-J) radio that replaces the current Link-16 receive-only box is expected to be operational by 2020. Subsequent upgrades are also focusing on having an open architecture to enable faster future enhancements.
In 2024, funding is projected to begin for the F-22 mid-life upgrade (MLU), which is expected to include new sensors and antennas, hardware refresh, cockpit improvements, and a helmet mounted display and cuing system. Other enhancements being developed include IRST functionality for the AN/AAR-56 Missile Launch Detector (MLD) and more durable stealth coating based on the F-35's.
The F-22 was designed for a service life of 8,000 flight hours, with a $350 million "structures retrofit program". Investigations are being made for upgrades to extend their useful lives further. In the long term, the F-22 is expected to be superseded by a sixth-generation jet fighter to be fielded in the 2030s.
Design
Overview
The F-22 "Raptor" is a fifth-generation fighter that is considered fourth generation in stealth aircraft technology by the USAF. It is the first operational aircraft to combine supercruise, supermaneuverability, stealth, and sensor fusion in a single weapons platform. The F-22 has four empennage surfaces, retractable tricycle landing gear, and clipped delta wings with reverse trailing edge sweep and leading edge extensions running to the upper outboard corner of the inlets. Flight control surfaces include leading-edge flaps, flaperons, ailerons, rudders on the canted vertical stabilizers, and all-moving horizontal tails (stabilators); for speed brake function, the ailerons deflect up, flaperons down, and rudders outwards to increase drag.
The aircraft's dual Pratt & Whitney F119-PW-100 augmented turbofan engines are closely spaced and incorporate pitch-axis thrust vectoring nozzles with a range of ±20 degrees; each engine has maximum thrust in the 35,000 lbf (156 kN) class. The F-22's thrust-to-weight ratio at typical combat weight is nearly at unity in maximum military power and 1.25 in full afterburner. Maximum speed without external stores is approximately Mach 1.8 at military power and greater than Mach 2 with afterburners.
The F-22's high cruise speed and operating altitude over prior fighters improve the effectiveness of its sensors and weapon systems, and increase survivability against ground defenses such as surface-to-air missiles. The aircraft is among only a few that can supercruise, or sustain supersonic flight without using fuel-inefficient afterburners; it can intercept targets which subsonic aircraft would lack the speed to pursue and an afterburner-dependent aircraft would lack the fuel to reach. The F-22's thrust and aerodynamics enable regular combat speeds of Mach 1.5 at 50,000 feet (15,000 m). The use of internal weapons bays permits the aircraft to maintain comparatively higher performance over most other combat-configured fighters due to a lack of aerodynamic drag from external stores. The aircraft's structure contains a significant amount of high-strength materials to withstand stress and heat of sustained supersonic flight. Respectively, titanium alloys and composites comprise 39% and 24% of the structural weight.
The F-22's aerodynamics, relaxed stability, and powerful thrust-vectoring engines give it excellent maneuverability and energy potential across its flight envelope. The airplane has excellent high alpha (angle of attack) characteristics, capable of flying at trimmed alpha of over 60° while maintaining roll control and performing maneuvers such as the Herbst maneuver (J-turn) and Pugachev's Cobra. The flight control system and full-authority digital engine control (FADEC) make the aircraft highly departure resistant and controllable, thus giving the pilot carefree handling.
Stealth
The F-22 was designed to be highly difficult to detect and track by radar. Measures to reduce radar cross-section (RCS) include airframe shaping such as alignment of edges, fixed-geometry serpentine inlets and curved vanes that prevent line-of-sight of the engine faces and turbines from any exterior view, use of radar-absorbent material (RAM), and attention to detail such as hinges and pilot helmets that could provide a radar return. The F-22 was also designed to have decreased radio emissions, infrared signature and acoustic signature as well as reduced visibility to the naked eye. The aircraft's flat thrust-vectoring nozzles reduce infrared emissions of the exhaust plume to mitigate the threat of infrared homing ("heat seeking") surface-to-air or air-to-air missiles. Additional measures to reduce the infrared signature include special topcoat and active cooling of leading edges to manage the heat buildup from supersonic flight.
Compared to previous stealth designs like the F-117, the F-22 is less reliant on RAM, which are maintenance-intensive and susceptible to adverse weather conditions. Unlike the B-2, which requires climate-controlled hangars, the F-22 can undergo repairs on the flight line or in a normal hangar. The F-22 has a Signature Assessment System which delivers warnings when the radar signature is degraded and necessitates repair. While the F-22's exact RCS is classified, in 2009 Lockheed Martin released information indicating that from certain angles the aircraft has an RCS of 0.0001 m² or −40 dBsm – equivalent to the radar reflection of a "steel marble". Effectively maintaining the stealth features can decrease the F-22's mission capable rate to 62–70%.
The effectiveness of the stealth characteristics is difficult to gauge. The RCS value is a restrictive measurement of the aircraft's frontal or side area from the perspective of a static radar. When an aircraft maneuvers it exposes a completely different set of angles and surface area, potentially increasing radar observability. Furthermore, the F-22's stealth contouring and radar absorbent materials are chiefly effective against high-frequency radars, usually found on other aircraft. The effects of Rayleigh scattering and resonance mean that low-frequency radars such as weather radars and early-warning radars are more likely to detect the F-22 due to its physical size. However, such radars are also conspicuous, susceptible to clutter, and have low precision. Additionally, while faint or fleeting radar contacts make defenders aware that a stealth aircraft is present, reliably vectoring interception to attack the aircraft is much more challenging. According to the USAF an F-22 surprised an Iranian F-4 "Phantom II" that was attempting to intercept an American UAV, despite Iran's assertion of having military VHF radar coverage over the Persian Gulf.