Boeing 727-23 Wallpapers

Boeing 727 aircraft, photo wallpapers: The Boeing 727 is a large, single-aisle (narrow-body) commercial jet airliner carrying as many as 189 passengers. It first took to the skies in 1963 and was, for a very long time, the most popular jet-liner in the world. 1831 Boeing 727s were delivered. The 727 design arose as a compromise between United Airlines, American Airlines, and Eastern Airlines over the configuration of the successor to the Boeing 707. United Airlines wanted a four-engined aircraft for its flights to high-altitude airports, especially its hub at Stapleton International Airport. American wanted a twin-engined aircraft for efficiency reasons. Eastern wanted a third engine for its overwater flights to the Caribbean. Eventually, the three airlines agreed on a trijet, and thus the 727 was born. [br]Since the 727 proved to be a reliable and versatile plane that came to form the core of many start-up airlines' fleets, it is sometimes described as the "DC-3 of the Jet Age." Even as the larger 747s came about in 1970, international airlines still needed the 727. Many of the airlines were from medium to large sized countries and needed to transport their passengers to the larger communities where they would catch the bigger airliners for their international flights. [br]At the turn of the 21st century, the 727 was still a vital part of some major American airline fleets. But the 727 had a reputation for high noise and most airlines were already switching to twinjets, airplanes with only two engines. Twinjets tend to be much more efficient and quieter than planes with three (like the 727) or four jets. Also, the 727 was one of the last airliners in service to have a three-person crew, including a flight engineer, a crewmember whose job is performed by computerized systems on newer planes. [br]Faced with higher fuel costs, lower sales due to the post-9/11 economic climate, and the extra expense of maintaining older planes, most major airlines began phasing 727s out of their fleet. Delta Air Lines, the last major U.S. carrier to do so, retired its last 727 in 2003. However, the 727 is still flying for smaller start-up airlines, cargo airlines, and charter airlines, and it is also becoming increasingly popular as a private means of transportation. [br]Design: The 727 proved very successful with airlines worldwide partly because of its capability to take off and land on smaller runways while still flying medium range routes. This effectively allowed airlines to attract passengers from cities with large populations but smaller airports to worldwide tourist destinations. One of the features that gave the 727 its ability to land on shorter runways was its unique wing design. Through flap extension and leading edge slat deployment, the 727 could almost double its wing surface area, allowing it to fly with great stability at very slow speeds. The 727 also had nosegear brakes fitted in the beginning to further decrease braking distance upon landing. These were however removed later as they proved to provide little gain in braking over added weight and higher maintenance costs. [br]The 727 was designed to be used at smaller, regional airports, so independence from ground facilities was an important requirement. This gave rise one of the 727's most distinctive features: the built-in airstair that drops from the rear underbelly of the fuselage. Another innovation was the inclusion of an APU (auxiliary power unit), which allowed electrical and air-conditioning systems to run independent of a ground-based power supply. [br]However, the 727 is also one of the loudest commercial jetliners, so most models in the United States must be fitted with hush kits to reduce engine noise. The 727's JT8D jet engines use older low-bypass turbofan technology while more modern airliners utilize the more efficient and less noisy high-bypass turbofan design instead. [br]Despite the noise, the 727 has one of the quietest cabins to ride in due to the rear installation of the engines. [br]Specifications: [br]- First flight: 1963 [br]- Production total: 1,832 built [br]- Production ended: 1984 [br]- Series: -100, -200, -200ADV [br]General characteristics (727-200): [br]Wingspan : 108 ft (32.91 m) [br]Length : 153 ft 2 in (46.69 m) [br]Tail height : 34 ft (10.36 m) [br]Powerplant : 3 × Pratt & Whitney JT8D turbofans, [br]-15 rated at 15,500 lbf (69 kN) thrust [br]-17 rated at 16,000 lbf (71 kN) thrust [br]-17R rated at 17,400 lbf (77 kN) thrust [br]Rolls-Royce Tay (727-100QF only) [br]Max. number of passengers : 189 [br]Performance: [br]Cruising speed : 570 to 605 mph (890 to 965 km/h) [br]Cruising altitude : 30,000 to 40,000 feet (9,100 to 12,200 m) [br]Range : 2,500 - 3,300nm [br]Variants: [br]727-100 : The first production model. [br]727-100C : Convertible passenger/cargo version. [br]727-100QC : Quick change cargo/passenger version. [br]727-100QF: United Parcel Service cargo conversion, re-engined with Stage III-compliant Rolls-Royce Tay turbofans. [br]727-100 Business Jet : [br]727-200 : Stretch version. (20 feet longer, in front of the wings) [br]Advanced 727-200 : [br]Advanced 727-200F : All freight version. [br]C-22 : Military transport version for the US Air Force. [br]

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Boeing 727-23 Wallpapers @ Mega Wallpapers (08 Edition)
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