I
Tracing his ancestors, had the DC-9 MD-80 and MD-90, was the Boeing 717, which has been designated inceptionally the MD-95, the last pure McDonnell-Douglas aircraft and the first and only state to Boeing moved to produce more.
Designed as an advanced, low-wing, 100-passenger aircraft, with two mounted in the rear, high-ratio turbofan bypass, and a T-tail, probably on the basis of the MD-90, its immediate predecessor, the design, forHigh frequency, short-and medium-haul the area had been included in the 40-year history of his family of the previous generation. After completing the manufacturer's name three of Douglas, McDonnell Douglas and Boeing, which had three basic cell span to highlight three main engines by Pratt & Whitney JT8D, International Aero Engine V2500, and BMW Rolls-Royce BR715, a large area of ability to push, from 12,000 to 25,000 pounds, four basicDesignations of DC-9, MD-80, MD-90 and MD-95/717, passenger capacity ranging from 90-180 in a single class system, trunk, and eight lengths, as the DC-9-10, -9 -30 DC, the DC-9-40, the DC-9-50, MD-80, MD-87, MD-90 and 717
How to replace a next-generation DC-9-30 and sold for the numerically most popular DC-9-version 662 was originally designated MD-95 has a length of 124 feet, which is 1.7 meters shorter than theDC-9-40-106 provides that a person integrate into a four-row, between two and two, first-class cabin during a 36-inch seat pitch and five-side, two and three, on an economy car 32 - inch seat pitch. A sixteenth pm can be housed in a single class, five side by side configuration. Two floor holds facilitate baggage, cargo and storage of electronic mail.
The state-of-the-art is a two-person cockpit with six interchangeable liquid crystal display can display (LCD) units, an electronic systemInstrument System (EIS), a dual flight management system (FMS), a fault system controlling the display (CFD) and advanced Honeywell VIA 2000 computer, and is capable of landing the class IIIA, with provision for lower minimum IIIB operations.
Its all-metal wings Spar as those of the previous DC-9, MD-80 and MD-90 has a duration, double position, five cartons of section peak spoiler section two, three - section double - grooved, trailing edge flaps and manualCable is connected in differential mode the aileron during flight Banking and roll operated control system. The wings, with a 93.4-foot span are sweptback 24 degrees for a maximum speed of Mach 0.82.
The T-tail, well positioned above the engine, eliminating interference horizontal stress on their faces, the cable is connected and elevators are operated by hand while the rudder is the vertical stabilizer hydraulic fly-by-wire trim. The MD-95/717 's tail that most often employedSkins of two previous MD-80 and MD-90.
Two stern mounted, BMW, Rolls-Royce BR715-A1-30 turbofan High-bypass ratio, each rated at 18,500 pounds thrust, the plane, freely generated by the motor is installed behind the scenes, Powered lift wing to achieve maximum performance. Based on single-core BR700 The BR715 has a two-stage high-pressure turbine, a 58-inch room fan, a single crystal turbine blades of the fans, the largest combined blade and the plate (blisk)for a power plant worker by trade, and the thrust-reverser equipped. The 19 meter long, 6155 pound engine, the third basic type of DC-9 family, had initially fired April 28, 1997 running, reaching nearly 26,000 pounds of thrust at this time. And 'the MD-95 is the only fuel system.
The plane is a dual-wheel, hydraulically operated three-wheel carriage.
Top of the originally designated MD-95-30, consists of 50 firm orders and 50 options that had its place19 Amended in October 1995 by ValuJet, a DC-9 and MD-80 operators, and the prototype, a former Eastern Airlines DC-9-30 and MD-95 standard and registered N717XA, had three years later, rolled June 10, 1998, first taking to the sky on September 2. The plane, Boeing prior years acquisition of McDonnell-Douglas and his Dash-7-7 system was renamed the number "717", through their nomenclature Boeing KC-135A Stratotanker, the derivative of the common military707.
The first production aircraft, registered N717XD until 23 Implemented in January 1999, and the boy had a joint FAA and JAA certification nine months later, on 1 September was, after a flight program of 2,000 hours of test DOOR failures in 1900 and five individual cells.
The first aircraft was delivered new N942AT AirTran Airways, which has a 737 operator, who had temporarily gained ValuJet, September 23 and was opened inService the following month, the Atlanta-Washington route.
The 717-200, the first and only version that was offered with the high level of basic and total options. The first, to 110,000 pounds, has a range of 1430 miles nautical, with a capacity of 24,609 gallons of fuel in the United States, while the second, £ 121,000, a range of 2,060 nautical miles, with a capacity of 29,500 gallons of fuel available to the United States, but also reduces the sub-space, because the extra space tank and requires the upgrade 21.0000,Pound-thrust BR715-C1-30 engine.
The aircraft is certified to a maximum altitude of 37,000 feet.
II
A triangular, tri-sector flight on AirTran Airways, from New York / LaGuardia to Akron, Ohio Atlanta, Georgia, and returned to New York, is the mission for which guidelines have been developed 717.
According to a brigade of Canada and Embraer "mini-jet", but is reflected in the long fuselaged "big brother" American MD-82 and the identical, Atlanta-bound AirTran 717-200immediately prior to 717, operating as Flight 202, and registered N926AT, crossed the runway arrivals, 4-22, before switching on the band starting 13th track Easy loading, only about 20 passengers aboard the twin-engine, T-tail ' aircraft lifted its wheels off the main concrete and cut in one corner of a steep initial climb, pushing his three-wheeled chassis in 55-degree spring-like air.
Exceeding the geometries of Queens House and bridge the gapthe opaque, transparent paper thin film cloud, Flight 202 turn left at the Throgs Neck bridge over the deep blue of Flushing Bay. Throttling back to power, turn left.
Manhattan, Iceland, appears on the tip of the left as thumbnails and appearance, between the Hudson and East Rivers, float triumphantly projected his tall, fine needle-building, and from below, the fog freezes to the ground as bastions win architecture of the warrior. AboutVerrazano-Narrows Bridge, the gateway to the Atlantic, the sun turns the water into a glass reflection of copper.
Now suppose that a flat, barely perceptible increase in an angle of 717, crossed the final successor to the DC-9, in the eastern edge of the Allegheny Mountains, such as black, charcoal sketch appeared trees 35,000 m² of depth.
Just passed by the upper wing surface panels, brakes, Twin-engine aircraft started a descent Aided surface after about 40 minutesdirty white and gray, Chop January indicative cloud layers on a model farm of eastern Ohio, stomping through the light.
The runs perpendicular to the Akron-Canton Airport went to look ahead and left. Extend its leading role in strips, with substantial product, has completed 202 of pneumatic rear suspension and sequencing door, arched in the end, the concept of speed left bank. Skimming the bare brown trees lined countermeasures Farm Patches DragSettings of the engine, 717-200 over the threshold is flared off and enter sideslipped sharply to cross winds.
Roles behind the round, brick Akron-Canton Terminal, where four were United Express, U.S. Airways Express and Delta Connection ERJ-135s and CRJ-200 was the nose, the plane, the largest on the ramp, starved of its rear-mounted motor fuel that is spooled in silence, replaced by the ringing of jetbridge extending towards the left front passengerDoor.
Pushed out the door in 1215, the AirTran 717, stop in Atlanta, now operating as Flight 202, brought the free taxi at the Akron-Canton Regional Airport and immediately won over 19 off the runway clearance. From the ground, run flat, with a passenger important complement, its landing gear went out with a slight thud and Ohio on agricultural land mosaic, which was later found hills. Higher theTotal has been reduced to distinguish dark.
Emerged from white cloud on the topography green corrugated boxes of West Virginia, Kentucky, in line to 37,000 feet, the twin-engine, T-tailed Jetliner line Nimbus cotton, which had bound themselves together, along the east coast.
The chocolate-brown ridges of Great Smoky Mountains of North Carolina as a solid crest of waves, which had petrified in its summit and back is not a descent intoSea.
The upper surface of the wing speed brakes caused the 717 swells in Georgia on a fast descent in the direction of snow-white cumulous banks, the ball through the darkness that overwhelms boring nose like a fist rocket. Banking on its axis, has launched a number of planes arriving at a distance the S-curve, stumbled through the cloud associated interrupt the air while the gas scramble led to a series of periodic fluctuations of speed when he took off the speed, engines were considerablySpool-up, followed with a frequency of the speed of deterioration before the process was repeated.
The aircraft came from Georgia Islands cloud of green and brown on the surface soil. The skyscrapers of Atlanta, but still as a thumbnail, a view emerged from the left.
The extension of three-wheel landing gear in the wake and to increase the ceiling to collapse the wings' surface and space travel, and their maximum with full drag strip edge 717 has left a finalBank on runway 28 in pure-blue sky dotted with 68 degrees of hanging blocks of cotton candy. In parallel, on the left side by a 757-200 and a Delta ASA CRJ-100 is closer to 27 e-left-right, the T-tail jet pure over the threshold, from engines to spool to the last time profiles a torch, and sat on the concrete with its main landing gear "back", which has absorbed the contact with the slightest protest.
The return flight, had been working non-stop,came later in the evening.
A breath of light localized, it is approaching the final in Atlanta Hartsfield-Jackson International Airport on a dark January night seemed to Vie in competitive times, runs for 27-and-right-left, on which AirTran 717-200, operating as Flight 343 from gate C-12 in New York-La Guardia, rolled the moment. Turn right at the threshold of two parallel strips, smothered in a motor-roll and acceleration tapers,nose in a corner, which rocked by its high horizontal stabilizers, generates enough lift to immerse themselves in the soil of Georgia and overwhelming that the solution of low-lying clouds.
Reimbursement of their gear, throw them out of darkness. Thin, horizontal layers of fog made the orange ethereal clean a floor, get into a dumb, the attempt only partially successful film by "others.
Broken from civilization, the Twin-jet in its own35,000-foot plateau, from which one could see, but do not influence the world in miniature below. Threading on the East Coast, looked Greenville / Spartanburg, South Carolina, Greensboro, North Carolina and Richmond, Virginia, represented by their respective soil thrown light points, "release" of changing colors, black cloth that was on the earth was without form or prevention.
, Beaten by the flight plan, east of Washington and Philadelphia, Flight 343, theseparately, lighted his invisible world are watching the track in January, black, followed the coast of New Jersey.
Leading edge slat extensions allow speed to bleed off, went 40 miles from the airport. La Guardia approaches to runway 22, the first plane in the north which in turn could permanently.
Currently in the black-referential gap between Upper New York Bay and the sky late at night flew on the right side of the small statue of Liberty pastand illuminated sculptures, sparkling gem of Manhattan Island, beyond which the roll-track designs perpendicular area of La Guardia.
Here, to be precise, the design of aircraft landing light, turn the 717 strung through the reflective black surface of Long Sound of Iceland, the green light chain Throgs Neck and Whitestone Bridges left.
Run a long final approach, on the coast of Connecticut in a speed of 132 knots, the twin-jet triggered his suspension, andextract the last amount of lift available from its swept back wings to full extension flap trailing edge, a maneuver inconsistent as far as drag creates lift, and could not be effectively countered with an increase in engine performance.
Bow in the direction of Flushing Bay, the nose, she took on the pier to support the runway 22 threshold and in the wind, again with the most important roles for the rescue of cement went on and unleash the thrust reversers and spoilers in simultaneousExplosion. A U.S. 737-800, was preceded by their landing, had just turned on the parallel taxiway.
III
On 23 May 2006, had during a ceremony in which thousands of people, implemented the last two Boeing 717 ordered by Midwest and AirTran Airways, which marks the last delivery of design, the final of the McDonnell-Douglas aircraft, and the closure of its plant historic Long Beach.
It was founded by Donald W. Douglas, Douglas Aircraft Companyflew the first plane, the "cloud", which opened in 1921 and has replaced its facilities in Long Beach in 1941, the eve of World War II, as well as the ability to question existing Santa Monica and El Segundo, Calif., plant. The first commercial project was the Douglas DC-1, built and sold Transcontinental and Western Air (TWA), becoming the forerunner of a long series of increasingly sophisticated air piston, which introduced the commercial worldFlight.
The merger with McDonnell in 1967, was one of Douglas Aircraft Company was renamed the McDonnell-Douglas Corporation, its products from the room again to trade issues and 30 years later, when Boeing acquired McDonnell-Douglas, was the Douglas Products Division. Ultimately, he was named the Long Beach Division of Boeing Commercial Airplanes.
During his more than 65 years of manufacturing history of Long Beach has produced about 10,000 soldiersAircraft during the Second World War and 15,000 military and commercial aircraft design has had a cumulative period of more than 65,000 cells were produced by all its locations.
Despite the most efficient, cost assembly techniques developed by the Boeing 717 was not able to remain competitive, even through the sale of conflicts with its own 737-600. However, the 156 717 was produced, along with the older generation of 976 DC-9, 1191 MD-80, 114 and MD-90, alreadyalmost half a century of service robust, reliable and economical in the world, and presumably will do so for many years.
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