Boeing 737-800 Aircraft Performance

The Boeing 737-800

General Information

The Boeing 737-800 was originally designated as the 737-400X and was stretched to 129 feet 6 inch compared to the -400, with its seating capacity increased to 189. The Boeing 737-800 project was launched on 5 September 1994 as commitments exceeded 40. Roughly 4 years, in April 1998, the first aircraft was delivered to launch customer Hapag Lloyd. Compared to other versions of the popular 737 family, the 737-800 is by far the most succesful version ever, having a backlog of orders that will ensure 737 production until at least 2012.

Compared to the 737-700, the -800 featured two additional fuselage sections (3 m forward and 2,84 m aft), engines with increased thrust (26,400 lbf), an additional pair of overwing exits (as is the case with the -400), added tailskid to section 48 and added Environmental Control System riser ducts. Furthermore, the Boeing 737-800 features re-gauged skins and stringers in the wing and centre section, heavy-duty wheels and brakes and a resized main landing gear structure.

As of May 2001, the -800 is available with winglets either as standard or retrofit. Adding winglets will result in reduced induced drag which eventually will reduce fuel consumption by up to 7%.

Aircraft Design

The Boeing 737-800 is part of the 737-NG (Next Generation) aircraft family and are all based on a key Boeing philosophy of delivering added value to airlines worldwide with reliability, reduced operating and maintenance costs and above all, simplicity.

All members of the 737NG family incorporate a new, advanced-technology wing design that helps increase fuel efficiency and capacity which increases range significantly. Total wing area is increased by approximately 25 percent to 1,340 square feet and provides around 30 percent more fuel capacity, increasing fuel capacity to 26,020 l. Increased wing area together with advanced airfoil design provides the aircraft with an economical cruise speed of .78 Mach with sprint capability of .82 Mach. The -800, as well as the -700 and -900ER, have the capability to have winglets installed, further boosting performance of the Boeing 737. As said earlier, the range of the aircraft is further increased and allows transcontinental flights operated by the 737. The entire 737NG family is capable of cruising at a maximum altitude of 41.000 feet while earlier models could reach 37.000 feet.

All Next-Generation 737 models are powered by new CFM56-7 engines produced by a joint venture of GE and Snecma, called CFMI. The CFM56-7 is the perfect fit for the 737 as it meets community noise restrictions. The engines were certified by the FAA in late 1996 at a thrust of 26,400 lb. The modern powerplants offer lower fuel burn and lower engine maintenance costs, making the 737 the perfect fit for many low-cost-airlines.

The interior of the Next-Generation 737’s creates a sense of space around the passenger. Indirect lighting enhances cabin ambiance while smooth sculptured ceilings give the cabin a more open, spacious feeling. Storage space for handluggage is further improved by offering longer overhead bins that eliminated the need for an internal support brace. Furthermore, the interior accomodates convertible seating, which allows operators to change a row of seats from either four- or five-abreast seating to six-abreast seating in less than a few minutes. Moveable cabin dividers also allows quick configuration changes between flights.

The latest family of Next-Generation 737’s incorporate leading-edge technology by offering crews display and flight-management software that promise to reduce flight delays while enhancing safety and flight-crew efficiency. Examples of these technologies include Vertical Situation Display, showing the current and predicted flight path of the airplane and indicates possible conflicts with terrain while a HUD, or Head-Up-Display, provides pilot aircraft and safety information on “eye-level”.

Version

Boeing 737-800

The Boeing 737-800 program was launched in 1994 by Hapag Lloyd. The original 737-800 designs stemmed from the 737-400X. It was first delivered in 1998 and up till today has an backlog for orders that ensures continued 737 production until 2012.

Boeing 737-800ERX

The Boeing 737-800ERX is a proposed heavier, longer range version of the 737-800 and is designed in order to meet the needs of the MMA. The aircraft is due for delivery in 2007 and will have various components implemented in the 737-900X including its redesigned wings with raked wingtips and heavier nose and main gear. Furthermore, the aircraft will incorporate some parts used on the BBJ while a unique feature of the -800ERX include empennage strengthening.

Performance And Dimension

Dimension

Length                                                  : 129 feet 6 inch (39,47 m)

Height                                                   : 41 feet 5 inch (12,62 m)

Wing Span                                           : 112 feet 7 inch (34.32 m)

Cross Section                                     : 12 feet 4 inch (3,76m)

Weights

Maximum Taxi Weight                  : 174.700 lb

Maximum Take Off Weight           : 174.200 lb

Maximum Landing Weight           : 146.300 lbs

Maximum Zero Fuel Weight        : 138.300 lb

Max. Structural Payload               : 47.000 lb

Useable Fuel                                      : 46.063 lb

Plan

Article : World Wide Aviation

Image : The Boeing 737 Technical Site

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