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Boeing 727

1964 COLD WAR MODERN AIRCRAFT

The history of the Boeing 727

The Jet Age was born and continued in the 1950s following the introduction of the jet engine as a viable aviation propulsion system in World War II (1939-1945). This period was followed by a group of specialized three-engine aircraft, called "Tri-Engines", which became popular in the 1960s.

The first such airliner to enter service became the famous Boeing 727 series, which in 1964 defeated the highly competitive British-born Hawke Sidley "Trident" by just a few months, Become the best-selling product in the world, operating on all major short and long-haul routes - long-haul routes are known for their mid-range narrow-body jets. From 1963 to 1984, total production of the 707 eventually reached 1,831 units, some of which are still in service today (March 2014), although they are now mainly used as cargo transport aircraft and their numbers are decreasing year by year.

Before the 727, Boeing engineers gained extensive experience designing and developing the previous four-engine 707 and 720 Marks. The three-engine 727 now moves the engine nacelle behind the main wing attachment (instead of the bottom) and adds a third engine at the bottom of the rudder, significantly simplifying the cramped design. This gives the 727 an extremely distinctive look, making it easily recognizable among Boeing aircraft stabilizers.

The first flight of the prototype took place on February 9, 1963, and shortly thereafter the aircraft entered service with Eastern Airlines on February 1, 1964. A typical operator consists of three crew members and up to four flight attendants.

The 727 brings several unique features that give it excellent "hot and high" performance and short-field quality, allowing it to access smaller, smaller airports around the world. Its wings feature a new leading edge sipe design as well as a triple-slotted trailing edge sipe that provides powerful handling during low-speed takeoffs and landings. The thrust reverser function supports landings on shorter runways, while the noise-reducing engines are designed for busy civilian airports. During the flight, the aircraft received rave reviews from the crew and passengers, who appreciated its performance and accessibility. Over time, the aircraft has also proven to be a suitable VIP and business jet.

The 1,000th plane was finally ordered in September 1972, marking a product milestone such as the 727's popularity in the airliner market (later surpassed by the upcoming 737).

The original 727 production model became the 727-100, of which about 407 were delivered by Boeing (although sales initially proved weak). The first-level configuration can hold 149 souls, while the second-level configuration can carry up to 131 people.

The "convertible" was followed by the 727-100C, which added a side cargo door for main deck access and expanded the 727's fuselage's ability to function as a cargo carrier, passenger carrier, or both Of. However, the total production of the 727-100C brand was only 164 units.

The 727-100 is powered by three Pratt & Whitney JT8D-1 turbofan engines, each with 14,000 pounds of thrust.

In December 1967, the "extended" 727-200 was introduced and proved to be the classic and popular 727 model. It incorporates a 20-foot fuselage extension that improves interior volume while increasing overall weight. At full load, the plane can now carry up to 189 people, and the sale has finally proved the commercial success of the modified 727, with many foreign companies now joining the fray. The 727-200F became a dedicated "freighter" with up to 11 pallets of cargo in the hold, a feature that freight company FedEx has used in 15 examples.

Production of all 727-200 brands resulted in an impressive 1,245 vehicles, and this model was powered by 3 Pratt & Whitney JT8D-9 turbofan engines, each producing 14,500 pounds of thrust.

Boeing continued to develop its growing 727 offering, and this dedication resulted in the 727-200 Advanced, which introduced the wide-body approach. The design also resulted in the use of upgraded engines and improved transport capabilities, as well as increased operating range.

The Advanced model was introduced in May 1971 and was powered by three Pratt & Whitney JT8D-17R engines, each producing 17,400 pounds of thrust.

The 727 is used by operators on every continent around the world. Some are also used in military and government service, and their versatility has been tested in decades of faithful service.

Its sheer availability means it has carried out a total of 178 hijackings and involved 112 total body casualties over its career, sadly resulting in a total of 3,783 fatalities.