The Boeing 757 is a low wing twin jet airliner that was produced by Boeing Commercial Airplanes from 1981 to 2004. The 757 is a narrow body airliner with the normal configuration being 3 seats on either side of a single aisle. Boeing designed the 757 alongside and slightly behind the Boeing 767. The 767, which is a wide-bodied airliner, and the 757 share many of the same design features in airframe as well as internal systems. This enables pilots to very quickly transfer from one type to the other with minimal retraining.
The 757 was Boeings’ replacement for the 727 which had enjoyed immense popularity and was still the mainstay of many airline fleets around the world. The initial concept floated by Boeing in the mid-1970s was to either create an updated 727, the 727-300 or to create a whole new twin-engined design known as the 7N7. Some interest was shown by United Airlines who provided input for the 727-300. but this died out after a while as airlines were more interested now in the new high by-pass turbofan engines which would not fit the 727 tri-jet.
The 7N7 was to be a much more modern aircraft taking advantage of new technology and materials. Strangely enough, the T-tail which is a feature of the 727 tri-jet design actually remained one of the last things to be changed. The standard tail section finally adopted enabled a larger passenger capacity as it removed the more tapered rear fuselage design.
PRICE PER SQUARE FOOT: $395
gala＝milk牛奶，milky way＝银河系以xy结尾的只有4个单词，xy表示交织在一起，象坐标线一样，银河系也象星星交织在一起。参：neodoxy（n 新学说；新见解）；orthodoxy（adj 正统的）；heterodoxy（n 非正统；异说）
Goldie Blox是一家玩具公司，使命是重新定义玩具商店中的“粉红走道”。在科学、技术、工程和数学（STEM）教育和职业领域，男性数量要大大多于女性，大部分女孩往往在八岁前就对这些领域失去了兴趣。Goldie Blox所设计的玩具则通过吸引女孩发展强大的口头及故事讲述能力的方式——同时仍提供机会来发展日后可转化成对工程学兴趣的技能——来鼓励和启发未来的工程师们。说到机会，一家玩具初创企业如何能在和一开始就统治着玩具行业的大公司的抗衡中脱颖而出呢？Goldie Blox走出了明智的一步：最近，该公司发布了一段视频，采用了Beastie Boys的歌曲《女孩们》（Girls）做背景音乐，该视频得到了病毒式传播。尽管这段视频最终被撤下，但Goldie Blox在提高公众对让更多女性和女孩对STEM产生兴趣——以及对Goldie Blox玩具——的认知上，做了一份相当不错的工作。
In a bid to raise awareness of one of the world's most endangered species and the Chengdu Panda Base in China, the 108 performers were hard to miss as they entertained Londoners and children during school visits with conservationist and base ambassador Nigel Marven.
After an investigation, Rongchang police arrested Zhou on April 29 for endangering public security, according to the Chongqing Morning Post.
We are now in the midst of the most peaceful era of human history. Back in the 1940s, 300 out of every 100,000 people would die as a direct result of war. We’re happy to tell you that that figure is now less than 1.
9. 安布罗斯·阿钦摩西尔(Ambrose Akinmusire)，《想像中的救世主更容易描绘》(the imagined savior is far easier to paint)，Blue Note。小号手安布罗斯·阿钦摩西尔为自己在Blue Note公司发行的第二张专辑注入了类型不固定，富于探索精神的今日之声，有许多歌手和一支弦乐四重奏组合参与。和这张专辑刚发行的时候相比，如今的他有了更多评论社会的迫切与讥讽时局的精神。
Although she has already reached astonishing levels of success for her age, Maddie only gives herself a nine out of ten in terms of her career achievements.
There were multiple instances of the glamourous royalty keeping Canadians waiting, including the arrival, where the family took a whole 20 minutes to disembark in order to be greeted by the Canadian welcome party.
There was to be a 757-100, but this was seen as a doubling up on the territory already covered by the Boeing 737. The idea was shelved.
Rolling out of the Renton Factory for the first time on 13 January 1982, the prototype 757 was equipped with Rolls Royce RB211-535C engines. She made her maiden flight a week ahead of schedule on 19 February 1982. The first 5 757s built were used in stringent and punishing flight tests, including; cold climate, hot climate, high altitude airfields as well as route testing. Because of the commonality between the 757 and the 767, a lot of data was able to be cross-referenced between the two during testing. A few minor modifications such as door springs and surface strengthening for bird strikes were made but the results were very pleasing for Boeing. The aircraft came in at 1,630Kg lighter than expected and enjoyed a 3% per cent better than expected fuel burn result. This equated to extending the range by 200nm (370Km). Boeing was quick to highlight the economy of their new product.
enjoyed a 3% per cent better than expected fuel burn result.
The 757 was initiated by 40 orders from both Eastern Air Lines and British Airways. The launch airline ended up being Eastern Air Lines who received their first Boeing 757 on 22 December 1982. On 01 January 1983, they performed the first scheduled service from Atlanta to Tampa. British Airways followed very shortly after with their introduction of the 757 onto the London to Belfast shuttle service on 09 February 1983. This was the beginning of their phasing out of the Hawker Siddeley Trident 3B.
|Breakdown by aircraft||Boeing 757 200||Boeing 757 200PF||Boeing 757 300|
Boeing 757 Customers with countries and regions.Use the filter on the right isolate particular information you are looking for and use the up and down arrows in each column header to sort by that column.
|Air China Southwest Branch||China||East Asia||12||12|
|Air Europe||United Kingdom||Europe||15||15|
|Air Holland Leasing||Netherlands||Europe||3||3|
|America West Airlines||USA||North America||4||4|
|American Airlines||USA||North America||126||126|
|Arkia Israeli Airlines||Israel||Middle East||2||2|
|ATA Airlines, Inc.||USA||North America||13||12||25|
|Azerbaijan Airlines||Azerbaijan||Central Asia||2||2|
|British Airways||United Kingdom||Europe||50||50|
|China Southern Airlines||China||East Asia||19||19|
|China Xinjiang Airlines||China||East Asia||6||6|
|Delta Air Lines||USA||North America||116||116|
|Dubai Aerospace Enterprise||Ireland||Europe||21||4||25|
|Eastern Air Lines||USA||North America||25||25|
|EL AL Israel Airlines||Israel||Middle East||7||7|
|Ethiopian Airlines Group||Ethiopia||Africa||4||1||5|
|Far Eastern Air Transport||Taiwan||Southeast Asia||7||7|
|GATX Financial Corporation||USA||North America||3||3|
|Government of Mexico||Mexico||North America||1||1|
|International Lease Finance Co||USA||North America||82||82|
|KE Aircraft Leasing||USA||North America||2||2|
|L.T.E. International Airways||Spain||Europe||1||1|
|Mid East Jet||Saudi Arabia||Middle East||1||1|
|Monarch Airlines||United Kingdom||Europe||7||7|
|MyTravel Airways||United Kingdom||Europe||1||1|
|Nepal Airlines Corporation||Nepal||South Asia||1||1||2|
|Northwest Airlines||USA||North America||56||16||72|
|Republic Airlines||USA||North America||6||6|
|Rolls-Royce A/C Management||United Kingdom||Europe||4||4|
|Royal Air Maroc||Morocco||Africa||2||2|
|Royal Brunei Airlines||Brunei||Southeast Asia||3||3|
|Shanghai Airlines||China||East Asia||13||13|
|Singapore Airlines||Singapore||Southeast Asia||4||4|
|Starflite Corporation||USA||North America||1||1|
|Sterling Air A/S||Denmark||Europe||3||3|
|Thomas Cook Airlines||United Kingdom||Europe||2||2|
|TUI Travel PLC||United kingdom||Europe||16||16|
|Turkmenhowayollary Agency||Turkmenistan||Central Asia||3||3|
|U.S. Air Force||USA||North America||4||4|
|United Airlines||USA||North America||139||9||148|
|US Airways (merged with AAL)||USA||North America||23||23|
|Uzbekistan Airways||Uzbekistan||Central Asia||3||3|
|Xiamen Airlines||China||East Asia||9||9|
Although orders looked promising to start with for the Boeing 757, the early 80s saw a bit of a drought in sales. Fuel prices had recovered from their early 70s spike and airlines were happy to sit on their older technology aircraft such as the Boeing 727, Douglas DC9, etc.. These aircraft were cheaper to buy and fuel economy was not as critical as it had been. Just as the critical decision was about to be made to slow down production, a turnaround came. In the U.S.A., congestion at airline hubs was becoming a problem and this spurred the demand for larger aircraft to carry more passengers on fewer flights. At the same time, noise regulations were coming into force at most airports and this was a problem for the older first-generation jet airliners.
She was also recognised for being the youngest recipient of the Ripple of Hope Award from the Robert F. Kennedy Center for her charity work.
A month later Boeing announced a new variant, the 757-200PF. This was a freighter model and 20 were ordered by UPS Airlines.
The Boeing 757-200 was initially designed for short to medium-haul routes as a replacement for the 727, however, airlines started to use the 757 from everything from high-density short shuttle routes to intercontinental trans-Atlantic routes.
"Under the leadership of the CPC Central Committee, we'll broaden judicial cooperation with relevant countries so that there will be no 'safe heaven' for corrupt fugitives," said La Yifan, director of the CCDI's International Cooperation Department.
10.Star Wars: Rogue One
At the Farnborough Airshow of September 1996, Boeing announced the plans for the 757-300. This variant would be 7.13 Metres (23 Feet 5 In.) longer than the 757-200. The project was kicked off by an order from Condor Flugdienst for 12 airframes.
She emotes with some of Pink's husky attitude and some of Sia's theatrical so-over-it-ness, but she's a warmer singer than either, whether shrugging off a lover on the self-explanatory "IDGAF" or matching Miguel's intensity on the steamy "Lost in Your Light."
Seven schools made it back into the top 100 after having missed out in the past year or two.
In the early 2000s Boeing once again floated the idea of a long-range 757 version but this was once again met with little interest. A concerted sales effort gained a few more sales but the 757 was winding down. Airlines seemed once again to be gravitating toward smaller airliners like the Airbus A320 and the Boeing 737 which were being offered in a range of sizes. Boeing was also looking toward an all-new airliner which would eventually become the Boeing 787 Dreamliner.
Something Boeing had never done before, was to dabble in the airliner conversion space. In March of 2001, they produced the first 757-200SF which was a second hand 757-200 converted to a freighter. Various modifications to the 200 enabled this to carry cargo on the main deck and hold below. Its capacity was nearly as high as the 757-200PF which was a purpose-built freighter. FedEx Express was a large customer for the type, spending US$2.4 Billion to replace their old 727s with 80 757-200SF conversions. By the middle of 2015, there were still 173 of the type in service.
Something Boeing had never done
|Model / Variant||757-200||757-200PF||757-300|
|Length||47.3 metres (124 feet)||54.47 metres (178 feet 8 inches)|
|Wing Span||38.05 Metres (124 feet 10 inches)|
|Tail height||13.56 Metres (44 feet 6 inches)|
|Cabin Length (external)||36.09 Metres (118 feet 5 inches)||43.21 Metres (141 feet 9 inches)|
|Cabin Width (internal)||3.54 Metres (11 feet 6 inches)|
|Passenger Capacity||Mixed Class 200 / Single Class 239||Nil||Mixed Class 243 / Single Class 295|
|Empty Weight||57,840 kg (127,520 lb)||64,590 kg (142,400 lb)|
|Maximum Take-off Weight (MTOW)||115,680 kg (255,000 lb)||123,600 kg (272,500 lb)|
|Take-off Distance at ISA, Sea level, MTOW, using RB211-535E4B Engines||1,981 m (6,500 ft)||2,377 Metres (7,800 ft)|
|Service Ceiling||42,000 ft (12,800 m)
34,100 feet (10,400 m) cruise altitude
|Maximum Cruising Speed||Mach 0.86 (493 knots, 913 km/h at 35,000 ft (11,000 m) cruise altitude)
at an altitude of 34,100 feet (10,400 m)
|Cruising Speed||Mach 0.80 (458 knots, 850 km/h at cruise altitude of 35,000 ft or 10,660 m)
at an altitude of 34,100 feet (10,400 m)
|Maximum Range Fully Laden||7,222 km (3,900 nm)
7,600 km (4,100 nm) with winglets
|5,834 km (3,150 nm)||6,287 km (3,395 nm)
6,658 km (3,595 nm) with winglets
|Fuel Capacity||43,490 Ltr (11,489 US gal)||42,680 Ltr (11,276 US gal)||43,400 Ltr (11,466 US gal)|
|Engines x 2||Rolls-Royce RB211 or
Pratt & Whitney PW2037
Pratt & Whitney PW2037,
|Engine Thrust||PW: 36,600–42,600 lbf (162.8–189.4 kN)
RR: 37,400–43,500 lbf (166–193.5 kN)
|Model / Variant||757-200||757-200PF||757-300|
Chinese growth figures have long been known to be artificially smooth, but now the economy is easily the world’s largest on purchasing power exchange rates, the statistical massages have wider consequences.
不过目前来看，这些潜在的乌云似乎都没有遮住特斯拉在帕洛阿尔托总部的阳光。特斯拉仍然坚持在2020年之前年产50万辆汽车的中期目标。这在很大程度上要取决于Model X是否有能力维持当前的势头。特斯拉已经大大提高了资本和研发支出，以确保Model X的顺利发布（虽然已经推迟了一年）。
会。梅亚德是执政党革命制度党(PRI)的候选人。他主要的竞争对手是强硬的左翼领导人安德烈斯曼努埃尔洛佩斯奥夫拉多尔(Andrés Manuel López Obrador)——可以感召人群的激情演说家。梅亚德需要克服很多问题：在去年1月一夜间把油价上调20%、引发通胀飙升后，他必须说服选民自己仍然是可以信任的。他还必须证明自己是个有主见的人，而不仅仅是这届不受欢迎的政府的傀儡——在遏制猖獗的腐败和犯罪行为方面，这届政府极为失败。但是凭借强大的PRI拉票机器，他可能势不可挡。在墨西哥只有一轮选举的体制下，30%的选票可能就足以让他当选总统了。