Boeing 737
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Air Berlin Boeing 737-700 in a hybrid Boeing and Air Berlin livery. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout
Type	Airliner
National origin	United States
Manufacturer	Boeing Commercial Airplanes
Maiden flight	9 April 1967
Introduction	10 February 1968 with Lufthansa
Status	Active
Primary users	Southwest Airlines Continental Airlines Ryanair Air China
Produced	1968 - Present
Number built	5,626
Unit cost	737-100 US$3. An airliner is a large Fixed-wing aircraft with the primary function of transporting paying passengers The United States of America —commonly referred to as the An aerospace manufacturer is a company or individual involved in the various aspects of designing building testing selling and maintaining Aircraft, Aircraft parts Boeing Commercial Airplanes is a unit of The Boeing Company, based in Renton, Washington consisting of the Seattle -based former Boeing The maiden flight of an Aircraft is the first occasion on which an aircraft leaves the ground of its own accord Events 193 - Septimius Severus is proclaimed Roman Emperor by the army in Illyricum (in the Balkans) Year 1967 ( MCMLXVII) was a Common year starting on Sunday (link will display full calendar of the 1967 Gregorian calendar. Events 1355 - The St Scholastica's Day riot breaks out in Oxford, England, leaving 63 scholars and perhaps 30 locals dead Year 1968 ( MCMLXVIII) was a Leap year starting on Monday (link will display full calendar of the Gregorian calendar. Southwest Airlines Co ( is an American low-cost Airline based in Dallas Texas, with its largest focus city at Las Vegas ' McCarran Continental Airlines Inc ( is a United States certificated air carrier. Ryanair (,) is an Irish Airline with headquarters in Dublin and its biggest operational base at London Stansted Airport in the UK Not to be confused with China Airlines, the national airline of the Republic of China (Taiwan. Year 1968 ( MCMLXVIII) was a Leap year starting on Monday (link will display full calendar of the Gregorian calendar. 2 million[1] 737 NG US$50-85 million (2008)[2][3]
Variants	Boeing 737 Classic Boeing Business Jet T-43 737 AEW&C C-40 Clipper P-8 Poseidon

The Boeing 737 is a short to medium range, single aisle, narrow body jet airliner. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout narrow-body aircraft is an Airliner with a Fuselage Aircraft cabin diameter typically of 3 to 4 metres (10 to 13 ft and Airline seat arranged An airliner is a large Fixed-wing aircraft with the primary function of transporting paying passengers Originally developed as a shorter, lower cost twin engine airliner derived from Boeing's 727 and 707, the 737 has nine variants, from the early -100 to the most recent and largest, the -900. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout Currently series -600 through -900 are being produced.

First envisioned in 1964, the 737 entered service in 1968. Forty years later it has become the most ordered and produced commercial passenger jet in the world. It is Boeing's last surviving narrow-body airliner, sometimes serving markets previously filled by 707, 727, 757, DC-9 and MD-80/90 airlines. Continuously manufactured by Boeing since 1967 with over 7,800 ordered and over 5,600 delivered (as of 2008),^[4] there are over 1,250 of the type airborne at any given time. The Boeing Company is a major Aerospace and defense corporation originally founded by William E ^[5] On average, a 737 departs or lands somewhere every five seconds. ^[6]

Development

Origins

Boeing had been studying short-haul jet aircraft designs and wanted to produce another aircraft to supplement the 727 on short and thin routes. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout ^[7] Preliminary design work began on 11 May 1964,^[8] and Boeing's intense market research yielded plans for a 50 to 60 passenger plane for routes 50 to 1,000 mi (80 to 1,609 km) long. Events 330 - Byzantium is renamed ''Nova Roma'' during a dedication ceremony but is more popularly referred to as Constantinople Year 1964 ( MCMLXIV) was a Leap year starting on Wednesday (link will display full calendar of the 1964 Gregorian calendar. ^[9][7] Lufthansa became the launch customer on 19 February 1965,^[10] with an order of 21 aircraft, worth $67 million^[11] (1965, $190. Events 197 - Roman Emperor Septimius Severus defeats usurper Clodius Albinus in the Battle of Lugdunum Year 1965 ( MCMLXV) was a Common year starting on Friday (link will display full calendar of the 1965 Gregorian calendar. 28 million in 2008), after the airline reportedly received assurances from Boeing that the 737 project would not be cancelled. ^[12] Consultation with Lufthansa over the previous winter resulted in an increase in capacity to 100 seats. ^[10]

On 5 April 1965, Boeing announced an order by United Airlines for 40 737s. Events 456 - St Patrick returns to Ireland as a missionary bishop Year 1965 ( MCMLXV) was a Common year starting on Friday (link will display full calendar of the 1965 Gregorian calendar. United Air Lines Inc, trading as United Airlines ( is a major airline of the United States. They wanted a larger airplane; therefore, Boeing stretched the fuselage an extra 91 cm (36 in) ahead of, and 102 cm (40 in) behind the wing. ^[13] The longer version was labeled 737-200, and the original now given the designation 737-100. ^[14]

The prototype 737, a -100 operated by NASA for testing. The National Aeronautics and Space Administration ( NASA, ˈnæsə is an agency of the United States government, responsible for the nation's public space program

Detailed design work continued on both variants at the same time. Boeing was far behind its competitors when the 737 was launched, as rival aircraft BAC 1-11, Douglas DC-9, and Fokker F28^[11] were already into flight certification. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout To expedite development, Boeing reused 60% of the structure and systems of the existing 727, most notably the fuselage cross section. This fuselage permitted six-abreast seating compared to the rival 1-11 and DC-9's five-abreast layout,^[10] but the widened cross-section and short fuselage complicated the aerodynamics of the aft-mounted engines common with airliners of the time. As a result, engineers decided to mount the nacelles directly to the underside of the wings. The placement of this weight below the center of the aircraft also reduced stresses on the airframe, which allowed for a lighter wing,^[15] and kept the aircraft low to the ground for easy ramp operations. ^[16] The engine chosen was the Pratt & Whitney JT8D-1 low-bypass ratio turbofan engine. Pratt & Whitney is an American Aircraft engine manufacturer of products widely used in both civil and military aircraft. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout ^[17] With the wing-mounted engines, Boeing decided to mount the elevator on the fuselage rather than the T-tail style of the Boeing 727. Elevators are control surfaces usually at the rear of an Aircraft, which control the aircraft's orientation by changing the pitch of the aircraft and so also A T-tail is an aircraft tail stabilizer arrangement in which the horizontal surfaces ( Tailplane and elevators are mounted to the top of the ^[13]

Boeing 737-200 Adv planform and exposed landing gear tires are visible on this USAF T-43 takeoff

The initial assembly of the 737 was adjacent to Boeing Field (now officially called King County International Airport) because the factory in Renton was at capacity building the 707 and 727. A planform or Plan view is a vertical Orthographic projection of an object on a horizontal plane like a Map. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout Boeing Field, officially King County International Airport is a two- Runway Airport owned and run by King County Washington, USA Renton Municipal Airport (renamed Clayton Scott Field in 2005 to celebrate the 100th birthday of Clayton Scott is located in Renton Washington, USA After 271 aircraft, production was moved to Renton in late 1970. ^[12][18] A significant portion of the fuselage assembly is in Wichita, Kansas previously by Boeing but now by Spirit AeroSystems, which purchased some of Boeing's assets in Wichita. ^[19] The fuselage is joined with the wings and landing gear, then moves down the assembly line for the engines, avionics and interiors. After rolling out the aircraft Boeing tests the systems and engines before its maiden flight to Boeing Field, where it is painted and fine tuned before delivery to the customer. ^[20]

The first of six -100 prototypes rolled out in December 1966, and made its maiden flight on 9 April 1967 piloted by Brien Wygle and Lew Wallick. Events 193 - Septimius Severus is proclaimed Roman Emperor by the army in Illyricum (in the Balkans) Year 1967 ( MCMLXVII) was a Common year starting on Sunday (link will display full calendar of the 1967 Gregorian calendar. ^[21] During nearly 1,300 hours of flight testing it was discovered that the aircraft produced excess drag at high speeds, which could buckle the rear wing spar at loads only 34% above normal. In an aircraft the spar is the main structural member of the wing running widthways across the span of the wing at right angles (or thereabouts to the Fuselage. The aircraft were modified with reinforcements, but at a cost to the weight and short-field performance. ^[22] On 15 December 1967 the Federal Aviation Administration certified the -100 for commercial flight. Events 533 - Byzantine general Belisarius defeats the Vandals, commanded by King Gelimer, at the Battle of Year 1967 ( MCMLXVII) was a Common year starting on Sunday (link will display full calendar of the 1967 Gregorian calendar. The Federal Aviation Administration ( FAA) is an agency of the United States Department of Transportation with authority to regulate and oversee all aspects of ^[23] The 737 was the first aircraft to have, as part of its initial certification, approval for Category II approaches. An instrument approach or instrument approach procedure (IAP is a type of Air navigation that allows pilots to land an Aircraft in ^[24] Lufthansa received their first aircraft on 28 December 1967 and on 10 February 1968 became the first non-American airline to launch a new Boeing aircraft. Events 1065 - Westminster Abbey is Consecrated. 1308 - The reign of Emperor Hanazono, Emperor of Year 1967 ( MCMLXVII) was a Common year starting on Sunday (link will display full calendar of the 1967 Gregorian calendar. Events 1355 - The St Scholastica's Day riot breaks out in Oxford, England, leaving 63 scholars and perhaps 30 locals dead Year 1968 ( MCMLXVIII) was a Leap year starting on Monday (link will display full calendar of the Gregorian calendar. ^[23] Lufthansa was the only significant customer to purchase the 737-100 and only 30 aircraft were ever produced. ^[25]

The 737-200 had its maiden flight on 8 August 1967. Events 1220 - Sweden is defeated by Estonian tribes in the Battle of Lihula. Year 1967 ( MCMLXVII) was a Common year starting on Sunday (link will display full calendar of the 1967 Gregorian calendar. It was certified by the FAA on 21 December 1967,^[26] and the inaugural flight for United was on 28 April 1968 from Chicago to Grand Rapids, Michigan. Events 69 - The end of the Year of the four emperors: Following Galba, Otho and Vitellius, Vespasian Year 1967 ( MCMLXVII) was a Common year starting on Sunday (link will display full calendar of the 1967 Gregorian calendar. Events 1192 - Assassination of Conrad of Montferrat (Conrad I King of Jerusalem, in Tyre, two days after his title Year 1968 ( MCMLXVIII) was a Leap year starting on Monday (link will display full calendar of the Gregorian calendar. Chicago (ʃɪˈkɑːgoʊ is the largest City by population in the state of Illinois and the American Midwest of the United States. ^[23] The lengthened -200 was widely preferred over the -100 by airlines.

Extended thrust reversers on retrofitted 737-200

In 1968 an improvement to the thrust reversal system was introduced. Thrust reversal, also called reverse thrust, is the temporary diversion of an Aircraft engine 's exhaust or changing of propeller pitch so that the thrust produced The improvement became standard on all aircraft after March 1969, and a retrofit was provided for active aircraft. Boeing fixed the drag issue by introducing new longer nacelle/wing fairings, and improved the airflow over the flaps and slats. The production line also introduced an improvement to the flap system, allowing increased use during takeoff and landing. All these changes gave the aircraft a boost to payload and range, and improved the short-field performance. ^[23] In May 1971, after aircraft #135, all improvements, including more powerful engines and a greater fuel capacity, were incorporated into the 737-200, giving it a 15% increase in payload and range over the original -200s. ^[24] This became known as the 737-200 Advanced, which became the production standard in June 1971.

In 1970, Boeing received only 37 orders. Facing financial difficulties, Boeing considered closing the 737 production-line and selling the design to Japanese aviation companies. ^[12] After the cancellation of the Boeing Supersonic Transport, and the scaling back of 747 production, enough funds were freed up to continue the project. The Boeing 2707 was developed as the first American Supersonic transport (SST ^[27] In a bid to increase sales by offering a variety of options, Boeing offered a 737C (Convertible) model in both -100 and -200 lengths. This model featured a 340 x 221 cm (134 x 87 in) freight door just behind the cockpit, and a strengthened floor with rollers which allowed for palletized cargo. A unit load device, or ULD is a Pallet or container used to load luggage freight and mail on Wide-body aircraft and specific Narrow-body aircraft A 737QC (Quick Change) version with palletized seating allowed for faster configuration changes between cargo and passenger flights. ^[28] With the improved short-field capabilities of the 737, Boeing offered the option on the -200 of the gravel kit, which enables this aircraft to operate on remote, unpaved runways. ^[29][30] Until retiring its -200 fleet in 2007, Alaska Airlines used this option for some of its rural operations in Alaska. Alaska Airlines, ( is an airline based in SeaTac, Washington, United States, near Seattle. Alaska ( Аляска Alyaska) is a state in the United States of America, in the northwest of the North American continent With the retirement of these aircraft, some airports, such as Red Dog Airport, have upgraded runway facilities from gravel to paved. Red Dog Airport is a private-use Airport located at Red Dog Mine, in the U ^[31][32]

In 1988 the initial production run of the -200 model ended after producing 1,114 aircraft. The last one was delivered to Xiamen Airlines on 8 August 1988. Xiamen Airlines ( Simplified Chinese: 厦门航空 Pinyin: Xiàmén Hángkōng POJ E-mng Hang-khong is the first airline company in People's Events 1220 - Sweden is defeated by Estonian tribes in the Battle of Lihula. Year 1988 ( MCMLXXXVIII) was a Leap year starting on Friday (link displays 1988 Gregorian calendar) ^[33][34]

Newer variants

Main article: Boeing 737 Classic

Development began in 1979 for the 737's first major facelift. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout Boeing wanted to increase capacity and range, incorporating improvements to upgrade the plane to modern specifications, while also retaining commonality with previous 737 variants. In 1980 preliminary aircraft specifications of the variant, dubbed 737-300, were released at the Farnborough Air Show. ^[35]

Southwest Airlines popularized low-cost fares with all-economy seating

The CFM56-3B-1 turbofan engine was chosen to power the aircraft, which yielded significant gains in fuel economy and a reduction in noise, but also posed an engineering challenge given the low ground clearance of the 737 and the larger diameter of the engine over the original Pratt and Whitney engines. Southwest Airlines Co ( is an American low-cost Airline based in Dallas Texas, with its largest focus city at Las Vegas ' McCarran WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout A turbofan is a type of Jet engine, similar to a Turbojet. It essentially consists of a Ducted fan with a smaller diameter turbojet engine Boeing and engine supplier CFMI solved the problem by placing the engine ahead of the wing, and by moving engine accessories to the sides of the engine pod, giving the engine a distinctive non-circular air intake. CFM International is a joint venture between GE Aviation of the United States, and Snecma of France. ^[36]

The passenger capacity of the aircraft was increased to 149 by extending the fuselage around the wing by 2. 87 m (9 ft 5 in). The wing incorporated a number of changes for improved aerodynamics. The wing tip was extended 9 in (23 cm), and the wing span by 1 ft 9 in (53 cm). The leading-edge slots and trailing-edge flaps were adjusted. ^[36] The flight deck was improved with the optional EFIS (Electronic Flight Instrumentation System), and the passenger cabin incorporated improvements similar to those developed on the Boeing 757. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout ^[37] The prototype -300, the 1,001st 737 built, first flew on 24 February 1984 with pilot Jim McRoberts. Events 303 - Galerius, Roman Emperor, publishes his edict that begins the persecution of Christians in his portion of the Year 1984 ( MCMLXXXIV) was a Leap year starting on Sunday (link displays the 1984 Gregorian calendar) ^[37] It and two production aircraft flew a nine month long certification program. ^[38]

In June 1986 Boeing announced the development of the 737-400,^[39] which stretched the fuselage a further 10 ft (3. 45 m), increasing the passenger load to 170. ^[40] The -400s first flight was on 19 February 1988 and, after a seven-month/500-hour flight testing run, entered service with Piedmont Airlines that October. Events 197 - Roman Emperor Septimius Severus defeats usurper Clodius Albinus in the Battle of Lugdunum Year 1988 ( MCMLXXXVIII) was a Leap year starting on Friday (link displays 1988 Gregorian calendar) Piedmont Airlines is a Regional airline operating for US Airways Express. ^[41]

The -500 series was offered, due to customer demand, as a modern and direct replacement of the 737-200. It incorporated the improvements of the 737 Classic series; allowing longer routes with fewer passengers to be more economical than with the 737-300. The fuselage length of the -500 is 1 ft 7 in (47 cm) longer than the 737-200, accommodating up to 132 passengers. Both glass and older style mechanical cockpits arrangements were available. ^[42] Using the CFM56-3 engine also gave a 25% increase in fuel efficiency over the older -200s P&W engines. ^[42]

The 737-500 was launched in 1987 by Southwest Airlines, with an order for 20 aircraft,^[43] and flew for the first time on 30 June 1989. Southwest Airlines Co ( is an American low-cost Airline based in Dallas Texas, with its largest focus city at Las Vegas ' McCarran Events 350 - Roman usurper Nepotianus, of the Constantinian dynasty, is defeated and killed by troops of the Usurper Year 1989 ( MCMLXXXIX) was a Common year starting on Sunday (link displays 1989 Gregorian calendar) ^[42] A single prototype flew 375 hours for the certification process,^[42] and on 28 February 1990 Southwest Airlines received the first delivery. Events 202 BC - coronation ceremony of Liu Bang as Emperor Gaozu of Han takes place initiating four centuries of the Han Dynasty 's rule Year 1990 ( MCMXC) was a Common year starting on Monday (link displays the 1990 Gregorian calendar) Southwest Airlines Co ( is an American low-cost Airline based in Dallas Texas, with its largest focus city at Las Vegas ' McCarran ^[44] The 737-500 has become a favorite of some Russian airlines, with Aeroflot-Nord, S7 Airlines, and Rossiya Airlines all buying second-hand models of the aircraft to replace aging Soviet-built aircraft. Russia (Россия Rossiya) or the Russian Federation ( Rossiyskaya Federatsiya) is a transcontinental Country extending CJSC "Aeroflot-Nord" (ЗАО «Аэрофлот-Норд» is an Airline based in Arkhangelsk, Russia. OJSC Siberia Airlines (ОАО «Авиакомпания „Сибирь“» operating as S7 Airlines is an Airline headquartered in Moscow, Russia Federal State Unitary Enterprise «State Transport Company «Russia» (ФГУП «Государственная транспортная компания «Россия» operating The Union of Soviet Socialist Republics (USSR was a constitutionally Socialist state that existed in Eurasia from 1922 to 1991

After the introduction of the -600/700/800 series, the -300/400/500 series was called the 737 Classic series.

The cockpit of an early 737	An 737-800 modern cockpit.

Next Generation

Prompted by the modern Airbus A320, in 1991 Boeing initiated development of an updated series of aircraft. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout ^[45] After working with potential customers, the 737 Next Generation (NG) program was announced on 17 November 1993. Events 284 - Diocletian is proclaimed emperor by his soldiers Year 1993 ( MCMXCIII) was a Common year starting on Friday (link will display full 1993 Gregorian calendar) ^[46] The 737NG encompasses the -600, -700, -800 and -900, and is to date the most significant upgrade of the airframe. The performance of the 737NG is essentially that of a new airplane, but important commonality is retained from previous 737. The wing was modified, increasing its area by 25% and span by 16 ft (4. 88 m), which increased the total fuel capacity by 30%. New quieter more fuel-efficient CFM56-7B engines were used. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout ^[47] All three improvements combined increases the 737s range by 900 nmi, now permitting transcontinental service. ^[46] A flight test program was operated by 10 aircraft; 3 -600s, 4 -700s, and 3 -800s. ^[46]

The first NG to roll out was a -700, on 8 December 1996. Events 1609 - Biblioteca Ambrosiana opens its reading room the second public library of Europe. Year 1996 ( MCMXCVI) was a Leap year starting on Monday (link will display full 1996 Gregorian calendar) This aircraft, the 2,843rd 737 built, first flew on 9 February 1997 with pilots Mike Hewett and Ken Higgins. Events 474 - Zeno crowned as co-emperor of the Byzantine Empire. Year 1997 ( MCMXCVII) was a Common year starting on Wednesday (link will display full 1997 Gregorian calendar The prototype -800 rolled out on 30 June 1997 and first flew on 31 July 1997, again with Hewett and Jim McRoberts. Events 350 - Roman usurper Nepotianus, of the Constantinian dynasty, is defeated and killed by troops of the Usurper Year 1997 ( MCMXCVII) was a Common year starting on Wednesday (link will display full 1997 Gregorian calendar Events 30 BC - Battle of Alexandria: Mark Antony achieves a minor victory over Octavian 's forces but most of his army subsequently Year 1997 ( MCMXCVII) was a Common year starting on Wednesday (link will display full 1997 Gregorian calendar The smallest of the new variants, the -600s is the same size as the -500, was the last in this series to launch, in December 1997. First flying 22 January 1998, it was given certification on 18 August 1998. Events 565 - Eutychius is deposed as Patriarch of Constantinople by John Scholasticus. Year 1998 ( MCMXCVIII) was a Common year starting on Thursday (link will display full 1998 Gregorian calendar) Events 293 BC - The oldest known Roman temple to Venus is founded starting the institution of Vinalia Rustica. Year 1998 ( MCMXCVIII) was a Common year starting on Thursday (link will display full 1998 Gregorian calendar) ^[46][48]

In 2004, Boeing offered a Short Field Performance package in response to the needs of Gol Transportes Aéreos, who frequently operate from restricted airports. Gol Transportes Aéreos is a an airline based in São Paulo, Brazil. The enhancements improve takeoff and landing performance. The optional package is available for the 737NG models and standard equipment for the 737-900ER.

On 21 August 2006, Sky News alleged that Boeing's Next Generation 737s built from 1994 to 2002 contained defective parts. Events 1192 - Minamoto Yoritomo becomes Seii Tai Shōgun and the De facto ruler of Japan. Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. Sky News is a rolling TV news channel providing 24 hour news coverage including the latest breaking news The report stated that various parts of the airframe produced by Ducommun were found to be defective by Boeing employees but that Boeing refused to take action. Ducommun is a large manufacturing company It supplied the airframes for Boeing 's Next Generation 737s which were built from 1994 to 2002. Boeing said that the allegations were "without merit". ^[49]

Boeing has already hinted that a "clean sheet" replacement for the 737 (internally dubbed "Boeing Y1") could follow the Boeing 787. Y1 is a Boeing Commercial Airplanes project to replace the 737-700, 737-800, 737-900 and 757-200 product lines WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout ^[50]

Design description

A Boeing 737-400 series of Garuda Indonesia showing the non-circular inlet

Engines on the 737 Classic series (300, 400, 500) and Next-Generation series (600, 700, 800, 900) appear not to have circular inlets, as most aircraft do. PT (Persero Perusahaan Penerbangan Garuda Indonesia is the national Airline of Indonesia. The accessory gearbox was moved from the 6 o'clock position under the engine to the 4 o'clock position (forward looking aft). This was done because the 737 sits lower to the ground than most airplanes and the original 737s were designed for small P&W engines, but additional ground clearance was needed for the larger CFM56 engines. This side-mounted gearbox gives the engine a somewhat triangular rounded shape. Boeing and CFM International, the engine manufacturer, claim that the shape actually yields slightly improved performance. The necessary nacelle redesign is known in the industry as "hamsterisation", because of the resemblance of the shape to the rodent. Because the engine is so close to the ground, 737-300s and later are more prone to engine foreign-object damage (FOD).

737s are not equipped with fuel dump systems. Fuel dumping from an Aircraft is used to lighten the aircraft's weight in certain emergency situations Depending upon the nature of the emergency, 737s either circle to burn off fuel or land overweight. To save weight and reduce cost and complexity the 737 lacks full doors to cover the main landing gear. The main landing gear (under the wings at mid-cabin) rotate into wells in the aircraft's belly, the legs being covered by partial doors, and "brush-like" seals aerodynamically smooth (or "fair") the wheels in the wells. The sides of the tires are exposed to the air in flight. "Hub caps" complete the aerodynamic profile of the wheels. It is forbidden to operate without the caps, because they are links to the ground speed sensor that interfaces with the anti-skid brake system. When observing a 737 takeoff, or at low altitude, the dark circles of the tires can be plainly seen.

Most 737 cockpits are equipped with "eyebrow windows" positioned above the main glareshield. Eyebrow windows were a feature of the original 707. They allowed for greater visibility in turns, and offered better sky views if navigating by stars. With modern avionics, they became redundant, and many pilots actually placed newspapers or other objects in them to block out sun glare. They were eliminated from the 737 cockpit design in 2004, although they are still installed in military variants and at customer request. These windows are sometimes removed and plugged, usually during maintenance overhauls and can be distinguished by a metal plug which differs from smooth metal which appears in later aircraft that were not originally fitted with the windows.

A blended winglet of a 737-800 of Jet Airways

Blended winglets are available as retrofits and in production on newer 737 aircraft. Jet Airways is an Airline based in Mumbai, India. It is the country's second-largest international airline after Air India and the largest Wingtip devices are usually intended to improve the efficiency of Fixed-wing aircraft. These winglets stand approximately 8 feet tall and are installed at the wing tips. They help with reduced fuel burn (by reducing vortex drag), reduced engine wear, and less noise on takeoff. V erification of the O rigins of R otation in T ornadoes Ex periment or VORTEX, is a field project that seeks to understand how a

A short-field design package is available for the 737-600, -700 and -800, allowing operators to fly increased payload to and from airports with runways under 5,000 feet. The package consists of sealed leading-edge slats (improved lift), a two-position tail skid (enabling reduced approach speeds) and increased flight spoiler deflection on the ground. Slats is also a nickname for Australian cricketer Michael Slater, and NHL executive Glen Sather Slats are Aerodynamic These improvements are standard on the 737-900ER. ^[51]

Variants

The 737 models can be divided into three generations, including nine major variants. The "Original" models consist of the 737-100, 737-200/-200 Advanced. The "Classic" models consist of the 737-300, 737-400, and 737-500. The "Next Generation" variants consist of the 737-600, 737-700/-700ER, 737-800, and 737-900/-900ER. Of these nine variants, many feature additional versions.

737 Original

737-100

Pluna 737-200 taking off from Carrasco International Airport (Montevideo, Uruguay). PLUNA Líneas Aéreas Uruguayas SA ( P rimeras L íneas U ruguayas de N avegación A Carrasco International Airport is the largest Airport in Uruguay. Montevideo (monteβi'ðeo is the largest city the capital and chief port of Uruguay. Uruguay.(official full name in República Oriental del Uruguay;, Oriental Republic of Uruguay) is a country located in the southeastern part of South America

The initial model was the 737-100. It was launched by Lufthansa in 1965 and entered service in 1968. The aircraft is the smallest variant of the 737. Thirty 737-100s were ordered and delivered. No 737-100s remain in service. The original Boeing prototype, last operated by NASA, retired more than 30 years after its maiden flight, and is on exhibit in the Museum of Flight in Seattle. The National Aeronautics and Space Administration ( NASA, ˈnæsə is an agency of the United States government, responsible for the nation's public space program The Museum of Flight is a private non-profit air and space Museum at King County International Airport/Boeing Field in Tukwila Washington ^[46]

737-200

The 737-200 is a 737-100 with an extended fuselage. It was launched by United Airlines in 1965 and entered service in 1968. United Air Lines Inc, trading as United Airlines ( is a major airline of the United States. The 737-200 Advanced is an improved version of the -200, introduced by All Nippon Airways on 20 May 1971. also known as or ANA, is an airline headquartered in Minato, Tokyo, Japan. Events 325 - The First Council of Nicaea &ndash the first Ecumenical Council of the Christian Church is held Year 1971 ( MCMLXXI) was a Common year starting on Friday (link will display full calendar of the 1971 Gregorian calendar. ^[52] The aircraft has improved aerodynamics, automatic wheel brakes, more powerful engines, more fuel capacity and longer range than the -200. ^[53] Boeing also provided the 737-200C (Convertible), that allowed conversion between passenger and cargo use and the 737-200QC (Quick Change), facilitating rapid conversion between roles. The last delivery of a -200 series aircraft was in August 1988. ^[54] A large number of 737-200s are still in service, mostly with "second tier" airlines and those of developing nations. They are being phased out because of poor fuel efficiency, high noise emissions (despite the vast majority having had their JT8Ds fitted with hush kits) and escalating maintenance costs. A hush kit is a device for reducing noise from an Engine; most commonly the term refers to devices which reduce noise emissions from low-bypass Turbofan engines as This plane was able to operate on gravel runways after a gravelkit was installed, this was done in Alaska. Gravelkit is a term for a modification which is used on some airplanes to avoid Foreign Object Damage, one modification included are to avoid spray of gravel from the nosewheels Alaska ( Аляска Alyaska) is a state in the United States of America, in the northwest of the North American continent

Nineteen 737-200s were converted to be used to train aircraft navigators for the U.S. Air Force, designated T-43. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout Some were modified into CT-43s which are used to transport passengers. The first one was delivered on 31 July 1973 and the last on 19 July 1974. Events 30 BC - Battle of Alexandria: Mark Antony achieves a minor victory over Octavian 's forces but most of his army subsequently Year 1973 ( MCMLXXIII) was a Common year starting on Monday (link will display full calendar of the 1973 Gregorian calendar. Events 711 - Muslim forces under Tariq ibn Ziyad defeat the Visigoths led by their king Roderic. Year 1974 ( MCMLXXIV) was a Common year starting on Tuesday (link will display full calendar of the 1974 Gregorian calendar. The Indonesian Air Force ordered three modified 737-200s, designated Boeing 737-2x9 Surveiller. See also List of aircraft of the Indonesian Air Force The Indonesian Air Force ( Indonesian: Tentara Nasional Indonesia Angkatan Udara or They were used as Maritime reconnaissance (MPA)/transport aircraft, fitted with SLAMMAR (Side-looking Multi-mission Airborne Radar). The aircraft were delivered between May 1982 and October 1983. ^[55]

After 40 years, the final 737-200 aircraft in the United States flying scheduled passenger service were phased out on 31 March 2008 with the last flights of Aloha Airlines (Aloha continues to fly its interisland cargo flights). Events 307 - After divorcing his wife Minervina, Constantine marries Fausta, the daughter of the retired Roman Emperor 2008 ( MMVIII) is the current year in accordance with the Gregorian calendar, a Leap year that started on Tuesday of the Common Aloha Airlines was an American airline headquartered in Honolulu, Hawaii, USA, operating from a hub at Honolulu International The aircraft had been eliminated from regular service in the continental United States in 2006, when Delta Air Lines withdrew the type. Delta Air Lines Inc ( is a United States Airline based and headquartered in Atlanta, Georgia.

737 Classic

Main article: Boeing 737 Classic

Close-up of the engine nacelles of a 737 showing the flattened underside and triangular shape. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout

The new 737 Classic series featured CFM56 turbofan engines, which yielded significant gains in fuel economy and a reduction in noise, but also posed an engineering challenge given the low ground clearance of the 737. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout A turbofan is a type of Jet engine, similar to a Turbojet. It essentially consists of a Ducted fan with a smaller diameter turbojet engine Boeing and engine supplier CFMI solved the problem by placing the engine ahead of (rather than below) the wing, and by moving engine accessories to the sides (rather than the bottom) of the engine pod, giving the 737 a distinctive non-circular air intake. CFM International is a joint venture between GE Aviation of the United States, and Snecma of France. ^[56] The wing incorporated a number of changes for improved aerodynamics.

737-300

The 737-300 was launched in 1981 by both USAir and Southwest Airlines becoming the first model of the 737 Classic series. US Airways Inc is the fifth largest Airline in the United States. Southwest Airlines Co ( is an American low-cost Airline based in Dallas Texas, with its largest focus city at Las Vegas ' McCarran The aircraft has a typical capacity of 128 passengers in a two class configuation (137 seats in a one class coach seating configuration). ^[57] The 300 series remained in production until 1999 when the last aircraft was delivered to Air New Zealand on 17 December 1999. Air New Zealand Limited (, Air New Zealand is a scheduled passenger Airline based in Auckland, New Zealand, and the national Flag carrier Events 546 - Gothic War (535–554: The Ostrogoths of King Totila Year 1999 ( MCMXCIX) was a Common year starting on Friday (link will display full 1999 Gregorian calendar)

Various modifications have been made to aircraft previously in service. The 737-300 can be retrofitted with Aviation Partners Boeing winglets. Aviation Partners Inc is a Seattle based private Corporation which produces and markets winglet systems The Boeing Company is a major Aerospace and defense corporation originally founded by William E The 737-300 retrofitted with winglets is designated the -300SP (special performance). Used passenger -300 aircraft have also been converted to freighter versions. The Lockheed Martin CATBird is a modified 737-300 with the nose of a Lockheed F-35 Lightning II, a pair of canards, and (inside) an F-35 cockpit; to be used to flight test the F-35's complete avionics suite. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout

British Airways 737-400

737-400

The 737-400 was stretched beyond the 737-300, primarily to accommodate charter airlines. British Airways plc ( is the national Airline and Flag carrier of the United Kingdom and one of the largest in Europe Piedmont Airlines and Pace Airlines were the launch customers. Piedmont Airlines was a regional airline based in Winston-Salem North Carolina; the airline began operations in 1948 Pace Airlines is an American Charter airline based in Winston-Salem, North Carolina, USA. The -400 was launched in 1985 and entered service in 1988 with Piedmont. The last delivery of the -400 occurred on 25 February 2000 to CSA Czech Airlines. Czech Airlines jsc (České aerolinie as Trading as Czech Airlines ( Abbreviation: ČSA) is the Czech national Airline ^[54]

The 737-400F was not a model delivered by Boeing but a converted 737-400 to an all cargo aircraft. Alaska Airlines was the first to convert one of its 400s from regular service to an aircraft with the ability to handle 10 pallets. Alaska Airlines, ( is an airline based in SeaTac, Washington, United States, near Seattle. ^[58] The airline has also converted two more into fixed combi aircraft for half passenger and freight. These 737-400 Combi aircraft are now in service.

737-500

LOT Polish Airlines 737-500

The 737-500 was launched in 1987 by Southwest Airlines and entered service in 1990. Southwest Airlines Co ( is an American low-cost Airline based in Dallas Texas, with its largest focus city at Las Vegas ' McCarran The fuselage length of the 737-500 is similar to the 737-200 while incorporating the improvements of the 737 Classic series. It offered a modern and direct replacement of the 737-200, while also allowing longer routes with fewer passengers to be more economical than with the 737-300. The last -500 was delivered to All Nippon Airlines on 26 July 1999. ^[54]

The 737-500 has become a favorite of some Russian airlines, with Aeroflot-Nord, S7 Airlines, and Rossiya Airlines all buying second-hand models of the aircraft to replace aging Soviet-built aircraft. Russia (Россия Rossiya) or the Russian Federation ( Rossiyskaya Federatsiya) is a transcontinental Country extending CJSC "Aeroflot-Nord" (ЗАО «Аэрофлот-Норд» is an Airline based in Arkhangelsk, Russia. OJSC Siberia Airlines (ОАО «Авиакомпания „Сибирь“» operating as S7 Airlines is an Airline headquartered in Moscow, Russia Federal State Unitary Enterprise «State Transport Company «Russia» (ФГУП «Государственная транспортная компания «Россия» operating The Union of Soviet Socialist Republics (USSR was a constitutionally Socialist state that existed in Eurasia from 1922 to 1991

737 Next Generation

Main article: Boeing 737 Next Generation

In November 1993, Boeing's board of directors authorized the Next Generation program to replace the 737 Classic series. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout The -600, -700, and -800 series were planned. ^[59] By the early 1990s, it became clear that the new Airbus A320 was a serious threat to Boeing's market share, as Airbus won previously loyal 737 customers such as Lufthansa. Airbus SAS (ˈɛərbʌs in English, Airbus2ogg|/ɛʁbys/]] in French, and /ˈɛːɐbʊs/ in German) is an aircraft manufacturing WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout After engineering trade studies and discussions with major 737 customers, Boeing proceeded to launch the 737 Next Generation series.

New features included:

• Improved CFM56-7 turbofan engine, 7% more fuel efficient than the CFM56-3
• Intercontinental range of over 3,000 nautical miles (5,556 km). WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout ^[60]
• Increased fuel capacity and higher Maximum Takeoff Weight (MTOW)
• Six-screen LCD glass cockpit with modern avionics, retaining crew commonality with previous generation 737
• Passenger cabin improvements similar to those on the Boeing 777, featuring more curved surfaces and larger overhead bins than previous generation 737s. The Maximum Takeoff Weight or Maximum Takeoff Mass of an Aircraft is the maximum weight at which the pilot of the aircraft is allowed to attempt to take off A glass cockpit is an Aircraft cockpit that features electronic instrument displays. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout The Next Generation 737 interior was also adopted on the Boeing 757-300. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout
• New airfoil section, increased wing span, area, and chord
• Redesigned vertical stabilizer

Boeing delivered the 5,000th 737 to Southwest Airlines on 13 February 2006. An airfoil (in American English) or aerofoil (in British English) is the shape of a Wing or blade (of a Propeller, rotor In reference to Aircraft, chord refers to the distance between the leading edge and trailing edge of a Wing, Horizontal stabilizer or Vertical stabilizer Southwest Airlines Co ( is an American low-cost Airline based in Dallas Texas, with its largest focus city at Las Vegas ' McCarran Events 1258 - Baghdad falls to the Mongols, and the Abbasid Caliphate is destroyed Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar.

737-600

A Scandinavian Airlines System 737-600

A TAROM 737-700

The 737-600 is the direct replacement of the 737-500 and competes with the A318. Scandinavian Airlines System ( SAS) is a multi-national Airline for Denmark, Norway and Sweden, and the leading carrier in the SC „Compania Națională de Transporturi Aeriene Române – TAROM” S WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout This is the only Boeing 737 still in production that does not include winglets as an option. ^[61] The 737-600 was launched by Scandinavian Airlines System in 1995 with the first aircraft delivered on 18 September 1998. Scandinavian Airlines System ( SAS) is a multi-national Airline for Denmark, Norway and Sweden, and the leading carrier in the A total of 69 aircraft have been delivered with no further announced unfilled orders as of December 2007.

737-700

The 737-700 was the first of Next Generation series when launch customer Southwest Airlines ordered the variant in November 1993. Southwest Airlines Co ( is an American low-cost Airline based in Dallas Texas, with its largest focus city at Las Vegas ' McCarran The variant was based on the 737-300 and entered service in 1998. ^[62] It replaced the 737-300 in Boeing's lineup, and its direct competitor is the A319. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout It typically seats 132 passengers in a two class cabin or 149 in all economy configuration.

The 737-700C is a convertible version where the seats can be removed from the plane to carry cargo. There is a large door on the left side of the aircraft. The US Navy was the launch customer for the 737-700C. ^[63]

Boeing launched the 737-700ER on 31 January 2006. Events 1504 - France cedes Naples to Aragon. 1606 - Gunpowder Plot: Guy Fawkes Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. ^[64] All Nippon Airways is the launch customer, with the first one delivered on 16 February 2007. also known as or ANA, is an airline headquartered in Minato, Tokyo, Japan. Events 1249 - Andrew of Longjumeau is dispatched by Louis IX of France as his ambassador to meet with the Khan of the Mongols Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. The 737-700ER is a mainline passenger version of the BBJ1 and 737-700IGW. A mainline flight is a flight operated by an airline's main operating unit rather than by regional alliances regional code-shares or regional subsidiaries It combines the 737-700 fuselage with the wings and landing gear of a 737-800. It will offer a range of 5,510 nautical miles (10,205 kilometers), with seating for 126 passengers in a 2-class configuration. The kilometre ( American spelling: kilometer) symbol km is a unit of Length in the Metric system, equal to one thousand A competitor to this model would be the A319LR. The 700ER has the second longest range for a 737 after the BBJ2. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout It is able to fly transatlantic services such as FlyGlobespan services from Glasgow to Boston and Toronto

All Nippon Airways, Japan’s second-biggest carrier, is to pioneer the model in Asia with a daily service between Tokyo and Mumbai. Flyglobespan is a Scottish low-cost airline based in Edinburgh. ANA’s service, believed to be the first all-business class route connecting to a developing country, was to start in September 2007 and use a Boeing 737-700ER outfitted with 36 seats and an extra fuel tank. ^[65]

The C-40A Clipper is a 737-700C used by the U.S. Navy as a replacement for the C-9B Skytrain II. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout The C-40B and C-40C are used by the US Air Force for transport of Generals and other senior leaders. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout The Boeing 737 AEW&C is a 737-700IGW roughly similar to the 737-700ER. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout This is an Airborne Early Warning and Control (AEW&C) version of the 737NG. Australia is the first customer (as Project Wedgetail), followed by Turkey and South Korea. The Royal Australian Air Force ( RAAF) is the Air Force branch of the Australian Defence Force. Turkey (Türkiye known officially as the Republic of Turkey ( is a Eurasian Country that stretches South Korea, officially the Republic of Korea and often referred to as Korea ( Korean: 대한민국 tɛː

737-800

A Ryanair 737-800

The 737-800 is a stretched version of the 737-700, and replaces the 737-400. Ryanair (,) is an Irish Airline with headquarters in Dublin and its biggest operational base at London Stansted Airport in the UK It also filled the gap left by Boeing's discontinuation of the McDonnell Douglas MD-80 and MD-90 after Boeing's merger with McDonnell Douglas. The -800 was launched by Hapag-Lloyd Flug (now TUIfly) in 1994 and entered service in 1998. Hapag-Lloyd Flug (between 2005 and 2007 also marketed as Hapagfly) was an Airline based in Hanover, Germany. TUIfly is the third biggest airline in Germany (after Lufthansa and Air Berlin and was founded in January 2007 as a cooperation of Hapag-Lloyd Flug and Hapag-Lloyd The 737-800 seats 162 passengers in a two class layout, or 189 in one class, and competes with the A320. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout For many airlines in the U. S. , the 737-800 replaced aging Boeing 727-200 trijets. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout

The P-8 Poseidon is a 737-800ERX ("Extended Range") that, on 14 June 2004, Boeing's Integrated Defense Systems division beat Lockheed Martin in the contest to replace the P-3 Orion maritime patrol aircraft. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout Events 1276 - While taking exile in Fuzhou in southern China, away from the advancing Mongol invaders, the remnants of the "MMIV" redirects here For the Modest Mouse album see " Baron von Bullshit Rides Again " Boeing Integrated Defense Systems ( Boeing IDS) based in St Louis, Missouri, USA, is a unit of The Boeing Company responsible for Lockheed Martin ( is a large multinational Aerospace manufacturer and advanced technology Company formed in 1995 by the merger of WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout Eventual orders may exceed 100 from the US Navy. The P-8 is unique in that it has 767-400ER-style raked wingtips, instead of the blended winglets available on other 737NG variants. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout Wingtip devices are usually intended to improve the efficiency of Fixed-wing aircraft. Wingtip devices are usually intended to improve the efficiency of Fixed-wing aircraft.

737-900

An Alaska Airlines 737-900

Boeing later introduced the 737-900, the longest variant to date. Alaska Airlines, ( is an airline based in SeaTac, Washington, United States, near Seattle. Because the -900 retains the same exit configuration of the -800, seating capacity is limited to 177 seats in two classes, or 189 in a single-class layout. The 737-900 also retains the MTOW and fuel capacity of the -800, trading range for payload. These shortcomings until recently prevented the 737-900 from effectively competing with the Airbus A321. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout

Alaska Airlines launched the 737-900 in 1997 and accepted delivery on 15 May 2001. Alaska Airlines, ( is an airline based in SeaTac, Washington, United States, near Seattle. There are no announced orders that have not been delivered yet. A total of 52 aircraft have been delivered.

The 737-900ER, which was called the 737-900X prior to launch, is the newest addition and the largest variant of the Boeing 737 line and was introduced to meet the range and passenger capacity of the discontinued 757-200 and to directly compete with the Airbus A321. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout

An additional pair of exit doors and a flat rear pressure bulkhead increase seating capacity to 180 passengers in a 2-class configuration or 215 passengers in a single-class layout. The rear pressure bulkhead is a component of all large commercial Aircraft. Additional fuel capacity and standard winglets improve range to that of other 737NG variants.

The first 737-900ER was rolled out of the Renton, Washington factory on 8 August 2006 for its launch customer, Lion Air. Renton is a city in King County, Washington, United States. A suburb situated 13 miles (21 km southeast of Seattle Washington, Renton Events 1220 - Sweden is defeated by Estonian tribes in the Battle of Lihula. Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. See also Lion Air Australia Lion Air is Indonesia ’s largest private carrier and Asia’s first hybrid carrier which offers both economy- and business-class Lion Air received this aircraft on 27 April 2007 in a special dual paint scheme combining the Lion Air lion on the vertical stabilizer and the Boeing livery colors on the fuselage. Events 1124 - David I becomes King of Scotland. 1296 - Battle of Dunbar: The Scots are defeated Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century.

Boeing Business Jet

Main article: Boeing Business Jet

Plans for a business jet version of the 737 are not new. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout In the late 1980s, Boeing marketed the Boeing 77-33 jet, a business jet version of the 737-300. ^[66] The name was short-lived. After the introduction of the next generation series, Boeing introduced the Boeing Business Jet (BBJ) series. The BBJ1 was similar in dimensions to the 737-700 but had additional features, including stronger wings and landing gear from the 737-800, and has increased range (through the use of extra fuel tanks) over the other 737 models. The first BBJ rolled out on 11 August 1998 and flew for the first time on 4 September. Events 2492 BC - Traditional date of the defeat of Bel by Hayk, progenitor and founder of the Armenian nation Year 1998 ( MCMXCVIII) was a Common year starting on Thursday (link will display full 1998 Gregorian calendar) Events 476 - Romulus Augustus, last emperor of the Western Roman Empire, is deposed when Odoacer proclaims himself ^[67]

On 11 October 1999 Boeing launched the BBJ2. Events 1138 - A massive earthquake struck Aleppo, Syria. 1531 - Huldrych Zwingli is killed Year 1999 ( MCMXCIX) was a Common year starting on Friday (link will display full 1999 Gregorian calendar) Based on the 737-800, it is 5. 84 m (19 ft 2 in) longer than the BBJ, with 25% more cabin space and twice the baggage space, but has slightly reduced range. It is also fitted with auxiliary belly fuel tanks and winglets. The first BBJ2 was delivered on 28 February 2001. Events 202 BC - coronation ceremony of Liu Bang as Emperor Gaozu of Han takes place initiating four centuries of the Han Dynasty 's rule Year 2001 ( MMI) was a Common year starting on Monday according to the Gregorian calendar. ^[67]

Operators

Polynesian Blue 737-800 at Wellington International Airport, New Zealand. Polynesian Blue is a Virgin Group Airline, which flies between Samoa, Australia and New Zealand. New Zealand is an Island country in the south-western Pacific Ocean comprising two main landmasses (the North Island and the South Island

The 737 is operated by more than 500 airlines, flying to 1,200 destinations in 190 countries. With over 7000 aircraft ordered, over 5000 delivered, and over 4500 still in service, at any given time there are over 1,250 airborne worldwide. On average, somewhere in the world, a 737 takes off or lands every five seconds. Since entering service in 1968, the 737 has carried over 12 billion passengers over 120 billion km (65 billion nm), and has accumulated more than 296 million hours in the air. The 737 represents more than 25% of the worldwide fleet of large commercial jet airliners. ^[5][6]

Civilian

Main article: List of Boeing 737 operators

Military

Many countries operate the 737 passenger and cargo variants in government or military applications. See also Boeing 737 See also List of Boeing 737 orders The List of Boeing 737 operators lists both former and current operators of the aircraft

• Australia, Brazil, Chile, Colombia, India (Indian Air Force) , Indonesia, Kuwait, Mexico, Niger, Peru, South Africa, South Korea, Republic of China (ROC's Air Force One), Thailand (Royal Thai Air Force), United Arab Emirates, United States (Air Force, Navy), Venezuela and Malaysia (Malaysian Air Force VIP). For a topic outline on this subject see List of basic Australia topics. |utc_offset = -2 to -4 |time_zone_DST = BRST |utc_offset_DST = -2 to -5 |cctld Chile, officially the Republic of Chile ( Spanish:) is a country in South America occupying a long and narrow Coastal strip wedged between the Colombia (kəˈlʌmbɪə officially the Republic of Colombia () is a country in northwestern South America. India, officially the Republic of India (भारत गणराज्य inc-Latn Bhārat Gaṇarājya; see also other Indian languages) is a country The Indian Air Force (Devanāgarī भारतीय वायु सेना IAST Bhartiya Vāyu Senā is the air arm of the Armed Forces of India and has the The Republic of Indonesia ( (Republik Indonesia is a Country in Southeast Asia. The State of Kuwait ( دولة الكويت IPA [dawlatt̪ alkuwajt̪]) is a sovereign Arab Emirate on the coast of the Persian Gulf, enclosed The United Mexican States ( or commonly Mexico (ˈmɛksɪkoʊ () is a federal constitutional Republic in North America. Niger ( or /ˈnaɪdʒɚ/) officially the Republic of Niger, is a Landlocked country in Western Africa, named after the Niger River. Peru (Perú Piruw Piruw officially the Republic of Peru ( reˈpuβlika del peˈɾu is a country in western South America. The Republic of South Africa (also known by other official names) is a country located at the southern tip of the continent of Africa South Korea, officially the Republic of Korea and often referred to as Korea ( Korean: 대한민국 tɛː REPUBLIC OF CHINA ARTICLE GUIDELINES The Kingdom of Thailand (ˈtaɪlænd ราชอาณาจักรไทย, râːtɕʰa-ʔaːnaːtɕɑ̀k-tʰɑj The Royal Thai Air Force or RTAF ( Thai: กองทัพอากาศไทย Kong Thab Akat Thai is the Air force of the Kingdom of Thailand The United States of America —commonly referred to as the Venezuela (ˌvɛnəˈzweɪlə) officially the Bolivarian Republic of Venezuela (Spanish República Bolivariana de Venezuela) is a country on the For the biogeographical region see Malesia Malaysia (məˈleɪʒə or /məˈleɪziə/ is a country that consists of thirteen states and The Royal Malaysian Air Force (RMAF ( Malay: Tentera Udara DiRaja Malaysia or TUDM) was formed in 1958 as the Royal Malayan Air Force
• The People's Liberation Army Air Force (PLAAF) of the People's Republic of China operates a 737-300 (registered B-4052) as an airborne command post. Talk People's Republic of China) PEOPLE'S REPUBLIC OF CHINA ARTICLE GUIDELINES

Incidents

As of 2007, a total of 282 incidents involving 737s had occurred, including 136 hull-loss accidents^[68] resulting in a total of 3,674 fatalities. An aviation accident is defined in the International Civil Aviation Organization Annex 13 The 737 has also been in 106 hijackings involving 324 fatalities. Hijacking (also known as skyjacking and aircraft piracy) is the take over of an Aircraft, by a person or group usually armed ^[69]

Recent notable accidents

• 14 August 2005 - Helios Airways, Flight 522, a 737-300 with 121 on board suffered a loss of cabin pressure. Events 1183 - Taira no Munemori and the Taira clan take the young Emperor Antoku and the three sacred treasures Year 2005 ( MMV) was a Common year starting on Saturday (link displays full calendar of the Gregorian calendar. Helios Airways was a low-cost Airline operating scheduled and charter flights between Cyprus and many European destinations Helios Airways Flight 522 (HCY 522 or ZU522 was a Helios Airways Boeing 737-31S flight that crashed on 14 August 2005 at 1204 EEST into a mountain It is suspected that the pressure regulating valve was left open in the manual position, and caused depressurization during the ascent. All 121 aboard the aircraft were killed.
• 29 September 2006 - Gol Transportes Aéreos, Flight 1907, a 737-800 Brazilian airliner with 154 people on board crashed following a midair collision with a Embraer Legacy 600. Events 522 BC - Darius I of Persia kills the Magian usurper Gaumâta securing his hold as king of the Persian Empire. Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. Gol Transportes Aéreos is a an airline based in São Paulo, Brazil. Gol Transportes Aéreos Flight 1907 was a Boeing 737-800 SFP, registration PR-GTD on a scheduled passenger flight from Manaus, Brazil |utc_offset = -2 to -4 |time_zone_DST = BRST |utc_offset_DST = -2 to -5 |cctld WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout All on board the 737 were killed. The Legacy landed safely at a Brazilian Air Force Base. ^[70]
• 29 October 2006 - ADC Airlines, Flight 53, a 737-200 crashed during a storm shortly after takeoff from Abuja, Nigeria. Events 437 - Valentinian III, Western Roman Emperor, marries Licinia Eudoxia, daughter of his cousin Theodosius II Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. Aviation Development Company, or ADC Airlines, was an Airline based in Calabar, Nigeria. Aviation Development Company Airlines (ADC Flight 53 was a scheduled passenger flight operated by ADC Airlines that crashed on October 29, 2006 shortly Abuja is the Capital city of Nigeria. It is located in the centre of Nigeria in the Federal Capital Territory Nigeria, officially named the Federal Republic of Nigeria, is a federal Constitutional republic comprising thirty-six states and one Federal All but seven of the 104 passengers and crew are reported to have been killed. ^[71]
• 1 January 2007 - Adam Air, Flight 574, a 737-400 carrying 102 people went missing near a mountainous area during stormy weather in Indonesia. New Year See also New Year The Ancient Romans began their consular year on January 1st since 153 BC Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Adam Air, (incorporated as PT Adam SkyConnection Airlines) was a privately owned Airline based in Jakarta, Indonesia. Adam Air Flight 574 (KI-574 was a scheduled domestic passenger flight operated by Adam Air between the Indonesian cities of Surabaya ( SUB The airliner was on a two-hour flight from Juanda International Airport, Surabaya, East Java to Sam Ratulangi Airport, Manado, on Sulawesi's northern tip and carried six crew and 96 passengers, including 11 children. Juanda International Airport (Bandar Udara Internasional Juanda, is an Airport located in Sidoarjo, a small town near Surabaya, East Java Sam Ratulangi International Airport, also known as Manado International Airport, is located in North Sulawesi, 17 km northeast of Manado. ^[72]

The damaged 737 from Aloha Airlines Flight 243, 1988

• 7 February 2007 - a Brazilian judge banned 737-700 and -800 aircraft from operating out of São Paulo’s Congonhas airport due to recent runway overrun incidents during wet weather. Aloha Airlines Flight 243 was a scheduled Aloha Airlines Boeing 737-297 flight between Hilo and Honolulu in Hawaii. Events 457 - Leo I becomes emperor of the Byzantine Empire. 1074 - Battle of Montesarchio in which the Prince Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. ^[73]
• 7 March 2007 - Garuda Indonesia Flight 200, a 737-400 carrying 140 people burst into flames while landing in Yogyakarta, Indonesia. Events 161 - Roman Emperor Antoninus Pius dies and is succeeded by co-Emperors Marcus Aurelius and Lucius Verus Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Garuda Indonesia Flight 200 (GA200 was the scheduled domestic passenger flight of a Boeing 737-497 operated by Garuda Indonesia between Jakarta and The Special Region of Yogyakarta ( Indonesian: Daerah Istimewa Yogyakarta, or DIY) is the smallest province of Indonesia (excluding A total of 22 people were killed. ^[74]
• 5 May 2007 - Kenya Airways Flight 507, a 737-800 carrying 106 passengers and nine crew lost contact and crashed on a flight to Nairobi, Kenya from Abidjan, Côte d'Ivoire, after making a scheduled stop at Douala, Cameroon. Events 553 - The Second Council of Constantinople begins 1215 - Rebel Barons renounce their allegiance to King John Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Kenya Airways Flight 507 was a Boeing 737-800 flight of Kenya Airways flying from Douala International Airport in Douala, Cameroon Nairobi (naɪˈroʊbɪ is the capital and largest city of Kenya. The Republic of Kenya is a country in East Africa. It is bordered by Ethiopia to the north Somalia to the northeast Tanzania to the south Abidjan is the largest city and former Capital of Côte d'Ivoire ( Ivory Coast) Côte d'Ivoire (ˌkoʊt divˈwɑː(r ' in English, kot diˈvwaʀ in French) or Ivory Coast, officially the Republic of Côte d'Ivoire, is a Douala is the largest city in Cameroon and the capital of Cameroon's Littoral Province. The Republic of Cameroon is a unitary republic of central and western Africa.
• 20 August 2007 - China Airlines Flight 120, a Boeing 737-800 inbound from Taipei, caught fire shortly after landing at Naha Airport in Okinawa Prefecture, Japan. Events 636 - Battle of Yarmouk: Arab forces led by Khalid ibn al-Walid take control of Syria and Palestine Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. China Airlines Limited ( Chinese: 中華航空公司 ( Pinyin: Zhōnghuá Hángkōng gōngsī commonly abbreviated 華航 is the Flag carrier China Airlines Flight 120 was a regularly scheduled flight from Taiwan Taoyuan International Airport in Taoyuan, Taiwan to Naha Airport Taipei ( Taiwanese Pe̍h-ōe-jī: Tâi-pak-chhī Jhuyin Fuhao: ㄊㄞˊ ㄅㄟˇ ㄕˋ Hakka: Thòi-pet-sṳ has been the capital of For the village in Chiapas, Mexico, see Naha Chiapas. For the airport in North Sulawesi, Indonesia, see Sangir Island is one of Japan 's southern prefectures, and consists of hundreds of the Ryukyu Islands in a chain over 1000 km long which extends southwest from Kyūshū There were no fatalities. Following this incident, the FAA issued an Emergency Airworthiness Directive (EAD) on 25 August ordering inspection of all Boeing 737NG series aircraft for loose components in the wing leading edge slats within 24 days. The Federal Aviation Administration ( FAA) is an agency of the United States Department of Transportation with authority to regulate and oversee all aspects of Events 1248 - The Dutch city of Ommen receives city rights and fortification rights from Otto III the On 28 August, after initial reports from these inspections, the FAA issued a further EAD requiring a detailed or boroscope inspection within 10 days, and an explicit tightening of a nut-and-bolt assembly within 24 days. Events 475 - The Roman General Orestes forces western Roman Emperor Julius Nepos to flee his Capital ^[75]

Specifications

Sources: Boeing 737 Specifications,^[76] 737 Airport Planning Report^[77]

737 deliveries

See also: List of Boeing 737 orders

• Data through March 2008. List of orders for the Boeing 737 as of March 2008 Orders and deliveries Active customers awaiting delivery of aircraft highlighted in pink Updated on 22 April 2008. Events 1500 - Portuguese Navigator Pedro Álvares Cabral becomes the first European to sight Brazil. 2008 ( MMVIII) is the current year in accordance with the Gregorian calendar, a Leap year that started on Tuesday of the Common ^[78]

See also

• Boeing 737 rudder issues
• Competition between Airbus and Boeing
  

Related development

• Boeing Business Jet
• Boeing T-43
• Boeing 737 AEW&C
• C-40 Clipper
• P-8 Poseidon
  

Comparable aircraft

• Airbus A319/A320/A321
• Boeing 717
• Bombardier CSeries
• Dassault Mercure
• Embraer 195
• McDonnell Douglas DC-9
• McDonnell Douglas MD-80/MD-90
• MS 21
• Tupolev Tu-154M
• Tupolev Tu-204
• Yakovlev Yak-42D
  

Related lists

• List of airliners
  

References

Notes

Bibliography

External links

• 737 page on Boeing.com
• Boeing 737 technical guide site
• About the gravel kit on Boeing 737-200
• Boeing 737-400 on Aircraft-Info.net
• Aviation History Online - Boeing 737-100/200 and Boeing 737-300/400/500
• Aerospace Technology - Boeing 737-600/700/800/900
• Celebrating the 5000th 737 on FlightInternational.com
• Boeing 737NG operator list
• Boeing 737 Management Reference Guide (for 737 airline pilots)
• How to start a real Boeing 737 Tutorial