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31 Aug

The Boeing 757

Increased demand on existing routes Boeing 727, often eclipsed the capacity of even the lay version, -200 series, along with advanced technology, dictated the necessity of which is a variant of the venerable three-jet or a completely new design.

The first attempt, adopting the above approach, had offered a sufficiently stretched fuselage to accommodate 189 passengers and three refanned greater capability of Pratt & Whitney JT8D-217 engines, each developing 20,000 pounds of thrust. Designated by the 727-300B, which first appeared in the 1975 Paris Air Show as a model. Despite the initial interest United Airlines, the companies saw the need for quieter, more advanced power plants.

A fundamental redesign, keep the nose of 727, the forward fuselage, and T-tail, and designated "7N7", a new section of the fuselage and a wing of new technology, cross, as much smaller 737, two engines mounted on tower, of which Pratt & Whitney JT10D-4, Rolls Royce RB.211-535, and General Electric CF6-32 then had been considered. Although planned, like its counterpart inceptional for one-stop transcontinental sectors, contained sufficient volume wing fuel tank and finally, long-range deployment.

Due to the wide-body comfort has been well received by passengers on intercontinental routes, an iteration had explored briefly increased fuselage cross-section twin-aisle 180-passenger accommodation. The concept will have served two needs: 1). Should be offering greater convenience, and therefore be more competitive with the then outstanding A-300 Airbus Industrie on relatively short sectors USA internal, and 2). Would have avoided the excessively long fuselage required to meet any increased capacity in the future, obviating the requirement for landing gear struts long adequate to maintain the takeoff angles of rotation.

The width provided, however, was too much of a reward for these benefits, as evidenced by the weak airline interest, since the weight and resistance associated a corridor of the second and only one more seat was both impractical, and its cross section, although larger than the 7N7 was still too narrow to accept the standard LD-3 containers of baggage and cargo.

Returning to his studies of narrow body Boeing proposed an advanced section 727 of large capacity, in February 1978, had offered his nose, cockpit and fuselage, but has introduced a new wing and two turboprops complement of 170 passengers, using much of the community of developed simultaneously, twin-aisle 7X7 design. Redesignated "757," which would be the fifth line of aircraft Boeing's commercial, leading to lead the seven-dash-model of seven numbers in the sequence after the 707, 727, 737, and 747, all but the last of which had been narrow bodies.

In comparison with 727 that had been intended to replace, had offered a 15 percent lower consumption fuel, however, its wing area inherently promoted significant weight, range, and increases the capacity of all future derivatives.

In order to reduce development costs associated with their 767, the widebody, twin-aisle, twin-engine counterpart originally intended also to a one-stop intercontinental routes, Boeing, where feasible, incorporated in common than the two aircraft types and both shared the same sections of the nose forward, the windshield, four main wheel landing gear units, avionics, and cockpit systems. In fact, the two planes, forming a new generation of advanced twin-engine narrow and widebody aircraft, would provide a common type rating, increasing the mixed fleet flying companies that operated both types, and even originally planned, 727-T-style tail was removed for the 767 conventional, low-wing configuration at the end of the design phase, resulting in greater uniformity with the 767 of the 727 that are intended to replace.

Launch orders for 21 firm and 24 options and 18 companies and 19 options, respectively, were placed by Eastern Airlines and British Airways on 13 August 1978, Rolls Royce RB.211-535C-powered aircraft. Offering a capacity of 196 passengers in a period of six per day, 34 inch seat height configuration, the 757, with 220,000 pounds of gross weight, is optimized for 2000 nm sectors, while an optional 230,000 pounds of weight would increase the range of 2,500 miles.

Structural weight reductions, which lowered the seat-mile, have been achieved with the advanced construction and composed of aluminum alloy, the first carbon fiber composite reinforced plastic used in the engine cowlings, flaps, spoilers, elevators and rudder, and Kevlar-reinforced plastics used in the engine cowling and the tower of the fin and stabilizer tip fairing. Copper and zinc aluminum alloys were used in skin wing, spars, and lower beams Spar. The alloy, providing increased force of five to 13 percent, in combination with the compounds, reduced weight in the structure £ 2,000 and resulted in an average annual fuel savings per aircraft of 30,000 U.S. gallons based on a utilization rate for 1400 of 1,000 nautical miles sectors.

The aircraft in its initial version, 757-200, presented a total length of 155.3 meters.

The aluminum alloy, two wing Spar, whose section Central continuously passed through the fuselage, offered a period of 124.10 meters, an area of 1,994 square meters, and five percent of dihedral, and shared a high degree of coincidence with the 767 he designed for his profile aft-loaded delay drag rise Mach. But it was thinner in its attachment with the root of the fuselage and offered 25 versus 32.5 percent of sweepback. Its strength has traditionally been offset by higher their expected standard mission profiles, that due to their short duration implies higher rates of rise and decline cycles. He had a 7.82 aspect ratio, or the ratio of length and width.

Elevator was augmented by full five-section slats and double slotted flaps behind the tip, while the roll control was provided by Al-speed outboard aileron, themselves assisted by five-flap section. They could be deployed as alternative flight or lift speedbrakes dump on the floor, where two panels spoiler interior could also be used.

Power pole provided by two propellers mounted high diversion ratio to the low edge of the wings, and diameter would not have been feasible with the 727 aft fuselage facility agreement, resulted in flexion of relief.

The Rolls RB.211 Royce-535C, the shortened version of the fan of the 42,000 pounds of thrust RB.211-22B developed for the Lockheed L-1011, construction worker pod compounds to reduce weight and the 757 first ran on Jan. 23, 1982. The three axles, 37,400 lbs thrust engine was chosen by the launch customers of the East and British Airways.

The 535E4 advanced RB.211, incorporating fan blades variety of chords, high pressure increase the module, and a common exhaust for the fan and the mainstream, offers a reduction of eight percent of the fuel in cruise mode and increased four-point pressure ratio of 23:1 to 27:1, on its previous version-535C. The 40,100 pounds of thrust engine was certified on 30 November 1983 and first flew the prototype of the 757 in February next.

The Pratt & Whitney PW2037, as specified by American Airlines and Delta, was the second plane, and only other, powerplant. JT10D initially appointed, the two turbofan axis inceptionally conceived as an engine of 26,700 pounds of thrust when the program started in February 1972, had become the current trend of 37,000 pounds, whose turbofan high pressure compressor efficiency was improved with a small compressor, along with higher core speeds of rotation. First prototype flight in 757, in March 1984, has certified that 37,600 pounds of takeoff thrust and had a bypass ratio of 5.8:1. The production version providing a thrust capacity of 38,200 pounds, while the gross weight of the lead aircraft, alternatively, could be powered by 41,700 pounds of thrust PW2040s.

Fuel was carried in two integral wing tank and a central section, with the one stored in external tanks burned past in order to maintain relief flexion of the wing. Capacity was 11,253 U.S. gallons.

The conventional low-wing stabilizer, adopted late in the development of the Boeing program 757, provided a reduction of the total length of 18 feet, however, resulted in a longer cabin than the 727 it replaces and improves handling of the soil. The variable incidence, horizontal tail lift-equipped, fully built-Span, two boxes of light alloy, had an area of 542 square-feet, while the structure vertical, consisting of three mast cell double lightbox pair of alloy, covered 370 square feet.

The tricycle landing gear is a double wheel, to the retraction strut front and two four-wheel drives retraction laterally compound Goodrich Dunlop or wheels, brakes carbon, and tires.

The standard cabin crew included two of operation and an observer's seat while the cab, to 118.5 meters long, 11.7 meters wide and two meters high, was wearing a look with large widebody, Kevlar, individually closed compartments overhead storage, a carved ceiling, recessed lights, shaped side, and seating is not fattening. Cooking, cleaning, apparel and the number and location varies according to customer preference, but can be installed forward and aft, or amidships.

Large class, tone and density distribution seats, according customer choice were available. A 178-passenger complement, for example, involves 16 seats in first class in a four per day, two and two, in a configuration of 38-inches and 162 economy class seats on a six-day, three and three, in an agreement for 34-inch pitch, , While that 208 passengers could be accommodated in a top 12 class and 196 economy class configuration, the last in a field of 32-inches. single class of high density, and tour included / Charter densities, at least 29 inches of rotation, included 214, 220, 234 and 239 passengers, the latter of which exceeds 727-200 maximum of 50 passengers and undermine 767-200 widebody equal numbers.

Access to the cabin was provided by any of the three main / service doors and two emergency exits over the wings on each side or top four passenger doors and services of each side.

The two cargo holds, access to starboard, under the doors of the deck, which offers 700 cubic feet of space into the front and 1,090 cubic feet at the stern.

Boeing 757 includes engine systems Honeywell-Vickers hydraulic pumps and hydraulic power ABEX four bombs. An Allied-Signal GTCP331-200 auxiliary power unit (APU) provides ground power for air conditioning, lighting, and the engine starts.

The full program approval was received in March 1979 and the assembly end, as all previous narrow-body aircraft, occurred in Renton, Washington, with the first metal cut on 10 December and the first major assembly will place 13 months later, in January 1981.

First deployed on 13 January 1982, or five months after its widebody 767 return, and taking to the skies for the first time on 19 February, 757-200 prototype (N757A) was flown by pilot John Armstrong and powered by 37,400 pounds of thrust RB.211-535C turbofans, successfully completing the hours, exit opening 31-minute, during which he had reached 250 knots of indicated airspeed (IAS), before landing at Paine Field Boeing 'Flight Test Center in Everett. Despite having introduced the first CRT display device equipped crew of two, and having been the first design Boeing has launched a foreign engine type has proved easy handling characteristics.

The five aircraft in the flight test program ultimately revealed that, compared with the original 1979 design specifications, which had a lower weight of 3.650 pounds-operating a 200-nautical mile range capability greater, and burned three percent less fuel.

Certified by the FAA on 21 December 1982, the 757-200, Boeing more long single-aisle twin-engine, entered regular passenger service with Eastern Airlines on January 1 following the Atlanta-Tampa and Atlanta, Miami routes, while British Airways, the configuration of their first 12 aircraft and 174 seats in economy class, took delivery of the type on 25 January and was inaugurated into service on 9 February, London-Heathrow and Belfast, Northern Ireland.

The Pratt & Whitney PW2037 first power variant, first flight on 14 March 1984 had been delivered to the launch of the Delta Air Lines customers seven months later, in October, the same month that this was his first example of improved engine, equipped with RB.211-535E4.

Thus engine aircraft, with 186 mixed-class passengers, had a maximum of 220,000 pounds and a maximum gross weight of 198,000 pounds of Landing, which offers a match 2820 miles of range capability, although the midrange versions had a 230,000 pounds of weight and long rank of outstanding examples of gross weight of 250,000 pounds, in which case 3.820 miles sectors could be blown.

Although the maturation DC-9, 727, and 737 routes conceptionally had dictated the need for the 757, its gross weight increasing and therefore range capability, allowing more time, trans-and intercontinental sector deployment, partly in response to rising fuel prices, and is served often, if not replaced, 767-200 services, complementing prior to usurp its twin-aisle counterpart. Both Delta and Eastern, for example, operated segments transcontinental its Atlanta, while this pattern mimicked USAir to Los Angeles and San Francisco from his base in Pittsburgh similar flight. Ladeco operated intercontinental service Santiago de Chile, to Miami and New York, and Canada 3000, Icelandair and Air 2000 all scheduled and charter operates transatlantic services. The type they unfold between Tel Aviv and many of its European destinations.

Apart from the initial release of 757-200 passengers, Boeing offered a number using subvariants same length of fuselage and wings, although these are sold in limited quantities.

The first of these, the 757-200PF Package Freighter, was developed for United Parcel Service (UPS) when 20 companies had placed orders and 15 options for the Pratt & Whitney PW2037-powered aircraft on 31 December 1985. These featured a 134 - by 86-inch upwards, opening, hydraulically operated main deck cargo door in the front, left, a smaller, 22 -- by 55-inch crew access door, a loading system, a solid barrier, sliding doors fitted between the cabin and the main deck of the Bay load, and the removal of all passengers in relation to windows, kitchens and toilets. First delivered to UPS on September 16, 1987, the twin-engine, with a maximum 240,000 pounds of weight loss, offered 6680 cubic feet of main and 1830 meters cubic volume of the lower deck, which allows up to 15 pallets to be carried into space for the previous passenger.

A modified version, the 757-200M Combi passenger facilities retained by the -200 and the elements of loading and loading the 200PF, allowing three pallets and 150 passengers to simultaneously accommodated in the main deck. Although he had been available with 250,000 pounds of high gross weight, only one, in the case, had been ordered by the Royal Nepal Airlines.

A conversion program developed by Pemco Aeroplex in 1992 allowed companies to modify the aircraft passengers starting to merge, quick change, or all variations of load, with a fuel capacity 11,276 U.S. gallons and weights the-200PF.

The only military version, the C-32A, had been ordered by the U.S. Air Force to replace their thirst for fuel, outdated, four-engined VC-137S, and had offered a 45 passenger interior. Renton's first flight on 11 February 1998, the aircraft, ultimately, comprising a fleet four had been operated by the 89th Airlift Wing at Andrews Air Force Base in Maryland.

III

One representative, transatlantic 757-200 flight, operated by Icelandair from New York-JFK to Reykjavik, Iceland, forthcomingly illustrated.

The aircraft scheduled to operate daily, leaving at night Iceland, registered TI-FIH, had been driven 40,100 pounds of thrust RB.211-535E4 Rolls Royce turboprops configured for 22 and four per day, two and two, in class Saga business, with wings and footrest-equipped six-seat and 167 a day, three and three economy class seats, all covered with soft upholstery, blue. The 250,000 books, high gross weight aircraft, with an average of 8800 pounds load capacity, offers a range of 3,900 miles.

To the rear of the door 21 to the now existing-JFK International Arrivals Building in 2050 per day of a massive Korean Air 747-400 after a sweltering 90 degrees, early summer the blue-trimmed, long fuselage 757-200, somehow reminiscent of the DC-8-63S was replaced, but with only half the number of power stations, it was an autonomous entity after disconnection of towbars in the dark black highlighted by the glow of the location of clouds in the western horizon.

The two people, technology transition cabin clocks include both traditional analog and six advanced cathode ray tube (CRT) The first consists of an anemometer, an altimeter, vertical speed indicator, a clock, and the standby flight instruments, while the second included in the system electronic flight instruments (EFIS), two electronic attitude and direction indicator (EADI), and two engine indication and crew systems alert (EICAS), the latter located in the central panel. The electronic flight instruments, grouped in the attitude director indicator (ADI) and the indicator horizontal position (HIS), the attitude of aircraft provided and positioning information through CRT displays in seven colors.

The indicator attitude director specifically provided aircraft attitude and tone, and data with the census, along with ground speed, autopilot, auto throttle and ways to fight direction, functioning in relation to the horizontal situation indicator, which was monitored by aircraft, the speed and direction wind, lateral and vertical deviations, and a reference to the standard hours, and could be used in four basic modes. The map mode, the first generated returns weather radar at different scales, while the VOR mode whenever the relative positions of selected VOR course of the aircraft. ILS mode planes in relation gave relationship with its ILS localizer and glide slope, and how to plan, the last of four shows the desired portion of the flight plan with north at the top of the screen.

The flight deck is otherwise the standard control yoke, a center console between the pilots sporting accelerators, the flap lever, and speedbrakes, and behind a console with communication and navigation instrumentation.

Start engine, turn the ceiling was reached turbofan respectively located rotary switch to one of its four starting modes "GRN", "FLT", "Auto" or "CONT" after the switch in the quadrant behind accelerators turned to fuel channel, while the air needed to start the rotation of the fan emanating of the tail cone-mounted auxiliary power unit. motor parameters, appears at the top, middle of CRT, including the engine pressure ratio (EPR), fan speed (N1), the intermediate rotor speed (N2), high pressure rotor speed (N3), and oil temperature, oil pressure, and the amount of oil.

The flight plan and waypoints had been charged before initial setback.

A throttle forward gently, then clearance of ground control, preceded twin cabs, lateral movements made with the help of the nosewheel tiller steering on the left side of the master and ground speed indicated by the EADI.

Thirdly for takeoff, 216,000 pounds of 757-200, operating as Flight 614 FI and control tower at a frequency of 119.1, was instructed to follow the United 767-300 for runway 13-right, the taxiway central green light gradually consumed by the nose wheel of the aircraft moved toward the light shining jewel of the Twin Towers of the World Trade Center in the skyline.

Once focused on the runway, the aircraft was instructed ", Icelandair 614, cleared for takeoff, runway 13 right. Caution Wake Turbulence from United 767 heavy. "start-up of the coil of its two 40,100 pounds of thrust Rolls Royce turbofan, which restrained its forward movement with the aid of the brakes on his toe, before pressing the push and release switch itself a long life roll preservation of reduced engine throttle setting and achieving initial control, through its nose wheel until the rudder becomes effective at about 50 knots. The green connection engine pressure, exhaust temperature, fuel flow, N1, N2, and N3 indications, pinnacling CRT screen, said air-fuel generation thrust.

Calls started at low speed 80 knots, the plane through the acceleration of its speed V1 162. Horizontal stabilizer of leverage eight degrees, the nose wheel disengaging rotation, the 757 divorced from the concrete by means of its current generation of lift the wings, retractable landing gear his tricycle, and participation of its vertical launch mode since climbed to 200 feet by 175-knot, 15-degree attitude.

The temperature exhaust gas and fan speeds, respectively, recorded 157 and 917.

Pursuing its standard instrument departure (SID), the aircraft wing nodded on a bench on the left on the Belt Parkway at dusk, topping the gold, green, orange, and the patch of white light, like iridescent paint poured on a black canvas, in Queens, contact Departure 126.8 in New York.

Climbing through 500 feet, the autopilot engaged, to control lateral navigation and the rate of climb, retract the flaps behind dual slot edge of the position of five degrees.

Ascending 3400 feet though, he instructed to carry out a 060-degree heading and to climb and maintain 11,000 feet. Crossing Long Island on a diagonal track, which took over 6,000 feet per minute climb at a speed of 220 knots, the cabin ever increasingly locked in wake. The promotion list has been completed.

New instructions to upload and maintain 17,000 feet, Flight 614 fell through a cloud of smoke to cover Connecticut, overcoming Misty top 24,000 feet, where the last trace of blue sky ice had been temporarily illuminated by lightning.

Apparently trapped in a black, steam, vacuum turbulence of incubation, the slender, narrow body, driven by its wide diameter, providing the engine of life, settled in their plateau assigned flight level 350, edged out of its left wing by an arctic blue line in Portland, Maine. The VNAV was hired.

Dinner, detailed the saga of "Business Class Menu" and preceded by a selection of appetizers and spirits, including "diplomatic pate and jumbo shrimp on a bed of lettuce with lemon and cocktail sauce, seafood in saffron Pernod sauce or grilled fillet of veal in creamy mushroom sauce served with tortellini, green beans and carrots, a selection of red wines and whites, a basket of bread and butter of Iceland; Bel Paese Italian soft cheese, Gouda cheese slices, crackers, red grapes, and nuts, cheese cake with raspberry sauce topped with shaved chocolate, coffee, a selection of spirits, hazelnut and French full of chocolates.

Caught in the black void, as referenceless continued its north-east transatlantic issue, the Boeing 757 had traced his path intercontinental invisible on St. John, New Brunswick, Gulf of St. Lawrence, and Goose Bay, Labrador, before leaving for the North American continent over the ocean feeling, the only light visible outside the cockpit now thinking of intermittent, in the marking of the fuselage on the port side engine cover.

Due to the location of the sun's northern hemisphere, however, the day quickly emerged, time in Iceland 0340, or 2340, New York time, in the form of a thin, faint, cold, dull blue that separated the sky last night the black surface, indistinguishable from the ocean and smoke, slab and lower cloud layers. That line represents the horizon. Somewhere, beyond the left, was the tip of Greenland and, further north of it, Narssarssuaq. The blue line intensified.

Pale green glow back of Dawn, piercing the layers of clouds with the intensity of fire, the sky turned into a series of dark red and copper lines, lighting system of Arctic snow cumulostratus cloud cover seems that now became visible below the tower wing engine support.

Starting automatic landing, aircraft installed TI-FIH in a reduced power of 3,500 feet per minute descent, the transition through 32,000 feet and its airspeed indicator went beyond the 300-knot mark. engine parameters, varying the engine includes an engine pressure ratio of 096, a speed of 390 fan, and a temperature exhaust gas 307. weight landing after burning fuel en route, was calculated from 180,000 pounds, or well below its maximum.

Leaning turbulence penetration and white and gray clouds that produce tendrils at 16,000 feet, the twin bored through the darkness with its bullet nose, now assuming a 1,800 feet descent rate for every minute. To adhere to the speed restriction of 10,000 feet, speed is set for 250 knots and the altimeter to 2,000 feet.

Descending through 9,000 meters of surface, 500 feet per minute rate, the captain cut the ILS approach chart for runway Keflavik International Airport 20 to the control yoke, set in the automatic terminal information service (ATIS), and noting the cloud cover, rain and a temperature more than nine degrees Celsius for our arrival.

Penetrating the density of gray in a 089-degree heading, the aircraft descended through 2,900 feet, when in which the altitude warning light illuminated, indicating imminent arrival of the series above-2,000-foot limitation. Indicated air speed (IAS), now going to make for 215 "," knot mark.

Maximum trailing edge flap extension speeds, according to the poster cabin, 240 knots indicated to a degree, 220 for five degrees, 210 for 15, 195 20, 190 to 25, and 162 to 30.

The EHSI display, switches to expand ILS, given the weather and traffic data and captive mode button activates the pager.

Spilling the dark at 2,000 feet, the 757 came in navy, gray, silver Atlantic briefly detaining its descent and mobilization on the right bank to a 141-degree line and the tip of Iceland. The indicated air speed was dialed to the establishment 180-knot.

Extending fins double-slit to the position of five degrees, as purged air speed of 200 knots mark, Flight 614 maintains focus end, a 201-degree departure.

The landing gear lever, down to 180 knots during the revision of the List Final Approach, had been followed by the incremental eyelash extensions at 20 - and finally, 30 posts of grade, the second, coinciding with an acquaintance, nose down trim, at a speed of 158 knots. Beset by rain, the plane approached the red and white lights of the runway threshold, beyond which the lines of contact in target could be seen through low cloud pods.

Passing over the green, brown, moss and gold, paved with lava fields and the multicolored roofs of Keflavik, the 757-200 fell through the 1,000 foot level at the foot of a 500-per-minute rate, speed 143 knots tied to VREF, and closed the gap to the track 20 in the midst of a progressive flashes and automatic altitude asked: "100 ... 50 ... 40 ... 30 ... 20 ... 10."

Deaf to the concrete with its quad-wheeled main units lying undercarriage, the twin rebowed toward Earth until his front tire made contact with the equality of the white light centered on the strip, its reverse thrust and manages speedbrake and armed.

Low speed calls, imitating the broadcast during the outbreak, there was: "80 ... 70 ... 60 ... 50", at which time the inverter mode of push off and the concrete was barely moving beneath the windows of the cab.

Turning off the active runway, now with the help of the nose Cane wheel, the long, narrow body double, have somehow mistakenly assumed the identity of an intercontinental aircraft, the door slid to one side of Icelandair TI-registered 737-400 FIB-like wand instructions Marshaller grew in size until only a few inches from the nose, where the parking brake was engaged jetbridge accordion and spread to the second door, from port.

Increased demand on routes to maturity 757, along with the elasticity inherent design, resulted in the first type, version and only in different dimensions, which provided ten percent lower seat-mile costs and increased its passenger capacity and cargo volumes underfloor, respectively, 20 and 50 percent.

First announced on 2 September 1996, after of German charter airline Condor Flugdienst had placed an order for 12 business and 12 optioned aircraft, type, named "757-300", offered a section of fuselage of 23.4 meters, consisting of a cap of 13.4 meters in front of the wing and a plug of ten meters behind it, producing a new and 178.7 meters of total length. The world's largest, single twin-engine craft, long eclipsed only by the quad-engined DC-8 Super series 60, which could accommodate 289 single class six passengers per day in a field of 29-inches, although a more typical mix of available standard class involves 12 first class, four posts a day in a field of 36-inches and 231 economy class six posts a day in a field of 32-inches, all on the long, 141.9 meters long, wide deck for the model Next Generation 737. Low volume also cover increased to 1,071 cubic feet in the forward hold and 1,299 cubic feet in the aft hold.

In order to address the tensions created by the increase in longer-fuselage was strengthened wings, high lift device, towers and train engine landing, and a guaranteed protection for the tail skid excessive rotation angles.

Still powered by two Rolls Royce RB.211-535E4 turbofan engines, the plane had a maximum of 240,000 pounds WEIGHT takeoff and a range of 2,055 nautical miles with 243 passengers.

The prototype 757-300, NU701 and the 804th meeting production aircraft, was deployed in Renton, Washington, 19 May 1998, and began flying in the first three months later, on August 2, completing a successful 2.5-hour flight on which peaked at 250 knots indicated airspeed and 16,000 meters. employed in the initial airworthiness maintenance and the realm of basic controllability of the flight test program, explored the flutter, stalls, stability and control, and demonstrated the need for installation vortex generator in the vanguard of the external flap to improve the characteristics of the post.

Two other airframes, NU721 and NU722, allowed the realization 356 program after collectively flights totaling 912 hours, and led to FAA certification for 180 minute ETOPS raids on 27 January 1999 holding shorter design to production cycle from any previous Boeing, which spanned 27 months.

Condor inaugurated the type of revenue service two months later, on March 19.

Improvements to existing 757-200-300 has been reached with Aviation Partners Boeing Blended Winglet Program modernization. winglets, with large radii and smooth chord changes in the transition points, avoiding drag producing vortex concentrations and provide optimum downforce, resulting in vortices wingtips smaller than any straight-wing or even conventional winglet systems with transitions angular produce.

The realignment, which carried a weight of 1,320 pounds, is outer skin and the rib replacement, to tighten the bar of tanks, lowest closing replacement cover, flap leading edge vortex generator additions and new external position and the fight against the installation of Anti-collision light.

The system, an increasing scope of 124.10 to a current ex 134.9 feet, she provided extensive economic benefits and performance, as annual average, for aircraft fuel savings of 300,000 U.S. gallons.

The first eight feet, two inches winglet-equipped 757, a -200 series aircraft owned by Continental Airlines, first flew on 9 March 2005 in Everett, Washington, and today the program qualifies as a resounding success.

On 18 October 2004, the 1050 th and final Boeing 757, a -200 series original length, left the final assembly plant in Renton and was delivered to the company Shanghai, China next year.

The aircraft, having been designed as increased capacity, twin-engine advanced counterpart to the 727, and as a smaller capacity, narrow-body complement that developed simultaneously 767, for a one-stop transcontinental routes, only filled two markets and thus created one of their own, ultimately becoming both more capacity and long-range intercontinental variations. Of the 1049 aircraft delivered, 913 have been 757-200s, 80 had been 757-200PFs, one was a 757-200M, and 55 had been 757-300.

The victim of the post-9/11 recession and the reduction in air travel, the type has been largely usurped by Next Generation Boeing 737 and Airbus A-321 itself, as smaller passenger capacity of more appropriate to the changing demands of route. 787-8 While this may provide limited replacement capacity in the sectors of high capacity of 757, not directly, the counterpart of design progress is expected, with high-end versions of the Boeing 737 itself probably qualify as a possible replacement for his successor. However, the type that represents the pinnacle single-aisle, two-engine aircraft development, the payload and range parameters much higher than those traditionally associated with the configuration of this type.

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