Boeing 737 Next Generation
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| Boeing 737 Next Generation | |
|---|---|
 TAROM 737-700 |
|
| Type | Airliner |
| National origin | United States |
| Manufacturer | Boeing Commercial Airplanes |
| Maiden flight | 1997 |
| Status | Active |
| Primary users | Southwest Airlines Alaska Airlines Korean Air All Nippon Airways |
| Produced | 1996 - Present |
| Number built | over 2,500[1] |
| Unit cost | US$50-85 million (2008)[2][3] |
| Variants | Boeing Business Jet 737 AEW&C C-40 Clipper P-8 Poseidon |
The Boeing 737 Next Generation is the name given to the -600/-700/-800/-900/Business Jet series of the Boeing 737 after the introduction of the -300/-400/-500 Classic series. They are American short to medium range, single aisle, narrow body jet airliners. Produced since 1996, over 2,500 aircraft have been delivered as of 2008.[1]
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[edit] Design and development
Prompted by the modern Airbus A320, in 1991 Boeing initiated development of an updated series of aircraft.[4] After working with potential customers, the 737 Next Generation (NG) program was announced on 17 November 1993.[5] 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.[6] All three improvements combined increases the 737s range by 900 nmi, now permitting transcontinental service.[5] A flight test program was operated by 10 aircraft; 3 -600s, 4 -700s, and 3 -800s.[5]
The first NG to roll out was a -700, on 8 December 1996. This aircraft, the 2,843rd 737 built, first flew on 9 February 1997 with pilots Mike Hewett and Ken Higgins. The prototype -800 rolled out on 30 June 1997 and first flew on 31 July 1997, again with Hewett and Jim McRoberts. 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.[5][7]
In 2004, Boeing offered a Short Field Performance package in response to the needs of Gol Transportes Aéreos, who frequently operate from restricted airports. 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. 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. Boeing said that the allegations were "without merit".[8]
Boeing has already hinted that a "clean sheet" replacement for the 737 (internally dubbed "Boeing Y1") could follow the Boeing 787.[9]
[edit] Variants
[edit] 737-600
The 737-600 is the direct replacement of the 737-500 and competes with the A318. This is the only Boeing 737 still in production that does not include winglets as an option.[10] The 737-600 was launched by Scandinavian Airlines System in 1995 with the first aircraft delivered on 18 September 1998. A total of 69 aircraft have been delivered with no further announced unfilled orders as of December 2007.
[edit] 737-700
The 737-700 was the first of Next Generation series when launch customer Southwest Airlines ordered the variant in November 1993. The variant was based on the 737-300 and entered service in 1998.[11] It replaced the 737-300 in Boeing's lineup, and its direct competitor is the A319. 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.[12]
Boeing launched the 737-700ER on 31 January 2006.[13] All Nippon Airways is the launch customer, with the first one delivered on 16 February 2007. The 737-700ER is a mainline passenger version of the BBJ1 and 737-700IGW. 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. A competitor to this model would be the A319LR. The 700ER has the second longest range for a 737 after the BBJ2. 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. 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.[14]
The C-40A Clipper is a 737-700C used by the U.S. Navy as a replacement for the C-9B Skytrain II. The C-40B and C-40C are used by the US Air Force for transport of Generals and other senior leaders. The Boeing 737 AEW&C is a 737-700IGW roughly similar to the 737-700ER. 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.
[edit] 737-800
The 737-800 is a stretched version of the 737-700, and replaces the 737-400. 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. The 737-800 seats 162 passengers in a two class layout, or 189 in one class, and competes with the A320. For many airlines in the U.S., the 737-800 replaced aging Boeing 727-200 trijets.
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. 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.
[edit] 737-900
Boeing later introduced the 737-900, the longest variant to date. 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.
Alaska Airlines launched the 737-900 in 1997 and accepted delivery on 15 May 2001. 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.
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. 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. 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.
[edit] Boeing Business Jet
Plans for a business jet version of the 737 are not new. In the late 1980s, Boeing marketed the Boeing 77-33 jet, a business jet version of the 737-300.[15] 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.[16]
On 11 October 1999 Boeing launched the BBJ2. 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.[16]
[edit] Operators
[edit] Specifications
| Measurement | 737-600 | 737-700/ 737-700ER |
737-800 | 737-900ER | |
|---|---|---|---|---|---|
| Cockpit Crew | Two | ||||
| Seating capacity | 132 (1-class, dense), 123 (1-class, standard)) |
149 (1-class, dense), 140 (1-class, standard) |
189 (1-class, dense), 175 (1-class, standard) |
215 (1-class, high-density), 204 (1-class, dense), 177 (1-class, standard) |
|
| Seat Pitch | 30 in (1-class, dense), 32 in (1-class, standard) | 28 in (1-class, high-density), 30 in (1-class, dense), 32 in(1-class, standard) |
|||
| Seat width | 17.2 in (1-class, 6 abreast seating) | ||||
| Length | 102 ft 6 in (31.2 m) |
110 ft 4 in (33.6 m) |
129 ft 6 in (39.5 m) |
138 ft 2 in (42.1 m) |
|
| Wingspan | 117 ft 5 in (35.7 m) |
||||
| Height | 41 ft 3 in (12.6 m) |
41 ft 2 in (12.5 m) |
|||
| Wing Sweepback | 25.02° (437 mrad) | ||||
| Aspect Ratio | 9.45 | ||||
| Fuselage Width | 12 ft 4 in (3.76 m) | ||||
| Fuselage Height | 13 ft 2 in (4.01 m) | ||||
| Cabin Width | 11 ft 7 in (3.54 m) | ||||
| Cabin Height | 7 ft 3 in (2.20 m) | ||||
| Empty Weight | 80,031 lb (36,378 kg) |
84,100 lb (38,147 kg) |
91,108 lb (41,413 kg) |
98,495 lb (44,676 kg) |
|
| Maximum take-off weight | 145,500 lb (66,000 kg) |
Basic: 154,500 lb (70,080 kg) ER: 171,000 lb (77,565 kg) |
174,200 lb (79,010 kg) |
187,700 lb (85,130 kg) |
|
| Maximum landing weight | 121,500 lb (55,112 kg) |
128,928 lb (58,604 kg) |
146,300 lb (66,361 kg) |
||
| Cargo Capacity | 756 ft³ (21.4 m³) |
966 ft³ (27.3 m³) |
1,591 ft³ (45.1 m³) |
1,852 ft³ (52.5 m³) |
|
| Takeoff run at MTOW | 8,016 ft (2,400 m) | 8,283 ft (2,480 m) | 8,181 ft (2,450 m) | ||
| Service Ceiling | 41,000 ft (12,500 m) |
||||
| Cruising speed | 0.785 (514 mph, 828 km/h) | 0.78 (511 mph, 823 km/h) | |||
| Maximum speed | 0.82 (544 mph, 876 km/h, 473 kt) | ||||
| Range fully loaded | 3,050 NM (5,648 km) | Basic: 3,365 NM (6,230 km) WL: 3,900 NM (7,220 km) ER: 5,375 NM (9,955 km) |
3,060 NM (5,665 km) | 2,700 NM (4,996 km) in 1 class layout, 3,200 NM (5,925 km) in 2 class layout with 2 aux. tanks |
|
| Max. fuel capacity | 6,875 US gal (26,020 L) |
7,837 US gal (29,660 L) |
|||
| Engine (x 2) | CFM 56-7B20 | CFM 56-7B26 | CFM 56-7B27 | CFM 56-7 | |
| Max. Thrust (x 2) | 20,600 lbf (91.6 kN) | 26,300 lbf (116.0 kN) | 27,300 lbf (121.4 kN) | ||
| Cruising Thrust (x 2) | 5,210 lbf (23.18 kN) | 5,480 lbf (24.38 kN) | |||
| Fan Tip Diameter | 61 in (1.55 m) | ||||
| Engine Length | 98.7 in (2.51 m) | ||||
| Engine Ground Clearance | 18 in (46 cm) | 19 in (48 cm) | |||
Sources: Boeing 737 Specifications,[17] 737 Airport Planning Report[18]
[edit] See Also
Related development
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
- Yakovlev Yak-42D
Related lists
[edit] References
- Notes
- ^ a b 747 Model Orders and Deliveries data, Boeing, April 2008.
- ^ Boeing Commercial Airplanes prices, Boeing. Retrieved: 29 May 2008.
- ^ Karp, Aaron. "Boeing boosts aircraft prices 5.5% on rising cost of labor, materials", Air Transport World, 26 June 2007. Retrieved: 13 April 2008.
- ^ Endres 2001, p. 132.
- ^ a b c d Shaw 1999, p. 8.
- ^ Endres 2001, p. 133.
- ^ Shaw 1999, pp. 14–15.
- ^ "Report alleges faulty parts in jets." United Press International, 21 August 2006. Retrieved: 22 August 2006.
- ^ Boeing firms up 737 replacement studies by appointing team Flight International, 3 March 2006. Retrieved 13 April 2008
- ^ "Next-Generation 737 Production Winglets." boeing.com. Retrieved: 10 February 2008.
- ^ Boeing 737-600/700, airliners.net. Retrieved: 4 February 2008.
- ^ "U.S. Naval Reserve Gets First Look at Newest Class of Aircraft.", DefenseLink (U.S. Department of Defense). Retrieved: 21 January 2008.
- ^ "Boeing Launches Longest-Range 737 with ANA."
- ^ Press release
- ^ Endres 2001.
- ^ a b The Boeing 737-700/800 BBJ/BBJ2. www.airliners.net. Retrieved: 3 February 2008.
- ^ Boeing 737 Technical Information, Boeing Commercial Airplanes.
- ^ Boeing 737 Airplane Characteristics for Airport Planning, Boeing Commercial Airplanes.
- Bibliography
- Endres, Günter. The Illustrated Directory of Modern Commercial Aircraft. Osceola, Wisconsin: MBI Publishing Company, 2001. ISBN 0-7603-1125-0.
- Shaw, Robbie. Boeing 737-300 to 800. Osceola, Wisconsin: MBI Publishing Company, 1999. ISBN 0-7603-0699-0.
[edit] External links
- 737 page on Boeing.com
- Boeing 737-600/700/800/900 on Aerospace-Technology.com
- Boeing 737NG operator list
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