Boeing 7. 37 - Wikipedia. The Boeing 7. 37 is a short- to medium- rangetwinjetnarrow- bodyairliner developed and manufactured by Boeing Commercial Airplanes in the United States. Originally developed as a shorter, lower- cost twin- engine airliner derived from the 7. The 7. 37 is Boeing's only narrow- body airliner in production, with the 7. Next Generation (- 7. ER) and the re- engined and redesigned 7. For your next United flight, use this seating chart to get the most comfortable seats, legroom, and recline on Boeing 737-900 (739) V1/V2. United Airlines (UA), headquartered in Chicago, is one of the world's oldest airlines. The carrier was founded in 1926. It flies to more than 300 destinations in 60. MAX variants currently being built. Originally envisioned in 1. April 1. 96. 7 and entered airline service in February 1. Lufthansa. In the 1. Boeing launched the longer . The 7. 37 Next Generation comprises the four . Boeing Business Jet versions of the 7. Next Generation are also produced. The 7. 37 was revised again in the 2. MAX series featuring CFM International LEAP- 1. B engines and improved winglets. The 7. 37 MAX entered service in 2. The 7. 37 series is the best- selling jet commercial airliner in history. Many 7. 37s serve markets previously filled by 7. DC- 9, and MD- 8. MD- 9. 0 airliners, and the aircraft currently competes primarily with the Airbus A3. United wanted a slightly larger airplane than the original 7. So Boeing stretched the fuselage 9. The longer version was designated 7. Detailed design work continued on both variants at the same time. Boeing was far behind its competitors when the 7. BAC- 1. 11, Douglas DC- 9, and Fokker F2. This fuselage permitted six- abreast seating compared to the rival BAC- 1. DC- 9's five- abreast layout. Design engineers decided to mount the nacelles directly to the underside of the wings to reduce the landing gear length and kept the engines low to the ground for easy ramp inspection and servicing. A substantial improvement in drag at high Mach numbers was achieved by altering these sections near the nacelle. With the wing- mounted engines, Boeing decided to mount the horizontal stabilizer on the fuselage rather than the T- tail style of the Boeing 7. Production and testing. The initial assembly of the 7. Boeing Field (now officially named King County International Airport) because the factory in Renton was filled to capacity with the building of the 7. After 2. 71 aircraft were built, production moved to Renton in late 1. 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. The first of six - 1. December 1. 96. 6, and made its maiden flight on April 9, 1. Brien Wygle and Lew Wallick. Lufthansa received its first aircraft on December 2. February 1. 0, 1. American airline to launch a new Boeing aircraft. Lufthansa was the only significant customer to purchase the 7. Only 3. 0 aircraft were produced. The 7. 37- 2. 00 had its maiden flight on August 8, 1. It was certified by the FAA on December 2. The lengthened - 2. They proved to be relatively ineffective and tended to lift the aircraft up off the runway when deployed. This reduced the downforce on the main wheels thereby reducing the effectiveness of the wheel brakes. In 1. 96. 8, an improvement to the thrust reversal system was introduced. The thrust reverser doors were set 3. 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 short- field performance. In May 1. 97. 1, after aircraft #1. This became known as the 7. Advanced, which became the production standard in June 1. Facing financial difficulties, Boeing considered closing the 7. Japanese aviation companies. In a bid to increase sales by offering a variety of options, Boeing offered a 7. C (Convertible) model in both - 1. This model featured a 3. A 7. 37. QC (Quick Change) version with palletized seating allowed for faster configuration changes between cargo and passenger flights. With the improved short- field capabilities of the 7. Boeing offered the option on the - 2. The last one was delivered to Xiamen Airlines on August 8, 1. Boeing wanted to increase capacity and range, incorporating improvements to upgrade the aircraft to modern specifications, while also retaining commonality with previous 7. In 1. 98. 0, preliminary aircraft specifications of the variant, dubbed 7. Farnborough Airshow. They chose the CFM5. B- 1high- bypassturbofan engine 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 7. Pratt & Whitney engines. Gregoire's team and CFM solved the problem by reducing the size of the fan (which made the engine slightly less efficient than it had been forecast to be), 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 Force with its program to re- engine KC- 1. The wing incorporated several changes for improved aerodynamics. The wingtip was extended 9 in (2. The leading- edge slats and trailing- edge flaps were adjusted. The tailfin was redesigned, 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 7. The prototype - 3. February 1. 98. 4 with pilot Jim Mc. Roberts. It and two production aircraft flew a nine- month- long certification program. In June 1. 98. 6, Boeing announced the development of the 7. The stubbier CFM5. The . It incorporated the improvements of the 7. Classic series, allowing longer routes with fewer passengers to be more economical than with the 7. The fuselage length of the . Both glass and older- style mechanical cockpits arrangements were available. Using the CFM5. 6- 3 engine also gave a 2. P& W engines. The 7. 37- 5. 00 was launched in 1. Southwest Airlines, with an order for 2. June 3. 0, 1. 98. A single prototype flew 3. February 2. 8, 1. Southwest Airlines received the first delivery. After the introduction of the . On June 4, 2. 00. United Airlines announced it would retire all 9. Classic 7. 37 aircraft (6. Airbus A3. 20 jets taken from its Ted subsidiary, which has been shut down. After working with potential customers, the 7. Next Generation (NG) program was announced on November 1. The 7. 37. NG encompasses the . The performance of the 7. NG is, in essence, that of a new aircraft, but important commonality is retained from previous 7. New, quieter, more fuel- efficient CFM5. B engines were used. The wing, engine, and fuel capacity improvements combined increase the 7. With the increased fuel capacity, higher maximum takeoff weight (MTOW) specifications are offered. The 7. 37. NG included redesigned vertical stabilizers, and winglets were available on most models. The Next Generation 7. Boeing 7. 57- 3. 00. This aircraft, the 2,8. February 9, 1. 99. The prototype . The smallest of the new variants, the - 6. It was the last in this series to launch, in December 1. First flying January 2. August 1. 8, 1. 99. A flight test program was operated by 1. The enhancements improve takeoff and landing performance. The optional package is available for the 7. NG models and standard equipment for the 7. ER. The CFM5. 6- 7. B Evolution nacelle began testing in August 2. PIP (Performance Improvement Package) due to enter service mid- 2. This new improvement is said to shave at least 1% off overall drag and have some weight benefits. Overall, it is claimed to have a 2% improvement on fuel burn on longer stages. Boeing delivered the 6,0. Norwegian Air Shuttle in April 2. Boeing delivered the 8,0. United Airlines on April 1. The airplane is to have a similar fuselage, but probably made from composite materials similar to the Boeing 7. Dreamliner. The legs are covered by partial doors, and . The sides of the tires are exposed to the air in flight. It is forbidden to operate without the caps, because they are linked to the ground speed sensor that interfaces with the anti- skid brake system. The dark circles of the tires are clearly visible when a 7. The original aircraft were too small to require them, and adding a fuel dump system to the later, larger variants would have incurred a large weight penalty. Boeing instead demonstrated an . Depending upon the nature of the emergency, 7. If the latter is the case, the aircraft is inspected by maintenance personnel for damage and then returned to service if none is found. The 7. 37 Classic series featured CFM5. JT8. D engines used on the . 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 7. The wing also incorporated changes for improved aerodynamics. The engines' accessory gearbox was moved from the 6 o'clock position under the engine to the 4 o'clock position (from a front/forward looking aft perspective). This side- mounted gearbox gives the engine a somewhat triangular rounded shape. Because the engine is close to the ground, 7. FOD). The improved CFM5. Next Generation is 7% more fuel- efficient than the previous CFM5. The newest 7. 37 variants, the 7. MAX family, are to feature CFM International LEAP- 1. B engines with a 1. These engines are expected to be 1. CFM5. 6- 7. B engines on the 7. Next Generation family. In the event of total hydraulic system failure or double engine failure, they will automatically and seamlessly revert to control via servo tab. In this mode, the servo tabs aerodynamically control the elevators and ailerons; these servo tabs are in turn controlled by cables running to the control yoke. The pilot's muscle forces alone control the tabs. For the 7. 37 Next Generation, a six- screen LCD glass cockpit with modern avionics was implemented while retaining crew commonality with previous generation 7. Eyebrow windows were a feature of the original 7. Seat. Guru Seat Map United Boeing 7. V1/V2. Version 1 is an extended range aircraft that seats a total of 1. First Class seats, 5. Economy Plus seats, and 9. Economy Class seats. This aircraft serves routes within North America. This version is equipped with personal Audio Video On Demand (AVOD) with DIRECTV. Again, This version is equipped with personal Audio Video On Demand (AVOD) with DIRECTV. Version 2 however, features power ports in all First Class seats and between seats in rows 7- 2. Economy, rows 2. 2- 3. Version 1. Additionally, Version 2 has a seat width of 1. The aisle seats in this aircraft have restricted floor storage due to the design of the seats. Passengers have reported that a large support structure splits the underseat storage in half. Consequently, only small items (purses, small computer bags) will fit under the aisle seats.
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