t**s
发帖数: 22 | 1
对。他的文章很含糊，说二者“翼型”相似，查表得到升力系数，却给不出
翼型型号。他其实不知道“翼型”是个专有名词，不是机翼的外形，而是机翼
的正横切面形状。一般飞机整个机翼都采用一种或几种翼型。现代战斗机由于
采用翼身融化，所以翼型不是单一的。
可以说所有“翼型”都是相似的。早在20年代NACA等机构就发现升力特性好的
形状就那么多，几乎无出其右。NACA于是把所有这些适合做翼型的形状编了号，
后来人们就称NACA翼型。某种飞机用哪种型号，就从中挑选一个合适的，于是
称该飞机采用NACAxxxxx翼型。后来一些公司在NACA基础上对NACA的翼型做了
一些修改，比如Boeing，称Boeing翼型。NACA翼型后来也做了些扩充，于是人们
通常说NACA Airfoil 4位数系列，5位数系列，6位数系列。一般来讲，4位数
系列出现在早期低速飞行器上，其改型也可用于超音速飞机，导弹和火箭，以及
直升机旋翼。五位数系列多用于大型亚音速飞机，如民航机，亚音速轰炸机。
六位数用于高速飞机，如超音速战斗机，原来的高速螺旋桨战斗机等。另外还有
16位数系列，用于舰船的螺旋桨，飞机的螺旋桨。 如果对 |
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d*b
发帖数: 21830 | 5 你不知道boeing买进麦道后生产的Boeing 717吧？ |
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c**i
发帖数: 6973 | 9 (1) Daniel Dombey and James Blitz, Precision Weapons prove Effective Against
Pro-Regime Armaments. Financial Times, Mar 29, 2011
(The Pentagon has also brought five Growler electronic attack aircraft.
Britain is relying on British Tornado GR4 aircraft to attack ground targets,
using guided Brimstone missiles. France is using the armament-air-sol
modulaire (air-to-ground modular weapon), a munition involving a 250kg bomb
guided by a global positioning system)
Note:
(a) brimstone (n; Middle Englis... 阅读全帖 |
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g**1
发帖数: 10330 | 10 Taiwan buys 30 AH-64 Apaches
By Stephen Trimble
Taiwan will receive 30 Boeing AH-64 Block III Apache helicopters under a
new contract signed with the US government, a US Army official announced
on 10 June.
The order marks the latest show of US military support to Taiwan despite
deep objections by China, and confirms the first international customer
for the AH-64 Block III.
Col Shane Openshaw, the army's AH-64 project manager, said Taiwan's
first new-build helicopter will enter production in Octo... 阅读全帖 |
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c**i
发帖数: 6973 | 12 Harpoon is A/R/UGM-84.
AGM stands for air-to-ground missile; RGM Radar Guided Missile; UGM
Underwater Guided Missile.
(1) Harpoon Block II; Backgrounder. Boeing, undated.
http://www.boeing.com/defense-space
/missiles/harpoon/docs/HarpoonBlockIIBackgrounder.pdf
Quote:
"Weight:
1,160 lb. Air configuration
1,459 lb. ASROC configuration
1,520 lb. TARTAR configuration
1,523 lb. Capsule/canister configuration
"Propulsion: Air-breathing turbojet engine (cruise), solid-propellant
booster
Note:
(a) RUR-5... 阅读全帖 |
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c**i
发帖数: 6973 | 14 Andrew E Kramer, Aloft, a Russian Image Problem. New York Times, Aug 30,
2011.
http://www.nytimes.com/2011/08/30/business/global
/russia-hits-headwinds-in-selling-airliners-to-the-west.html?_r=1&scp=1&sq=
superjet&st=cse
Note:
(a) Aeroflot
http://en.wikipedia.org/wiki/Aeroflot
(Aeroflot, English translation: "air fleet"; the flag carrier and largest
airline of the Russian Federation; Founded 1923; Headquarters Moscow; The
airline is owned (as of March 2007) by the Russian Government)
(b) The a... 阅读全帖 |
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c**i
发帖数: 6973 | 15 ------------------------------Separately
(1) GE and China: Growing Market Overseas, More Jobs at Home. General
Elctric, Aug 25, 2011
http://www.gereports.com/ge-and-china-growing-market-overseas
-more-jobs-at-home/?utm_source=google&utm_medium=cpc&utm
_term=china%20aircraft&utm_campaign=GE%20Aviation%20Response&kmed=ppc
("GE started doing business in China in 1906")
Note:
(a) The announcement stated, "With $17 billion in U.S. exports in 2010, GE
is the nation’s second largest manufacturing expor... 阅读全帖 |
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R****a
发帖数: 6858 | 16 美国企业被中国逼向非洲
2012-08-10 10:05
11
新浪微博 开心网 腾讯微博 人人网 QQ空间 邮件 复制网址 收藏夹 打印 更多
过去10年，中国在非洲的成功投资既给美国企业以压力，也为美国资本进入创造了良好
的基础设施环境。
相关阅读
美国企业被中国逼向非洲
肯尼亚首都内罗毕将争夺2024年夏季奥运会主办权
过剩动物怎么处理？节育或安乐死
赞比亚中资煤矿骚乱 中国员工1死2伤
民主进程下中非关系新挑战
希拉里巡访非洲 开辟遏制中国第二阵地
关键词：
非洲美国希拉里企业投资
希拉里带来了商务代表团
希拉里在非洲巡回访问，放肆地攻击了中国在非洲的投资。但非洲的确需要投资来支持
经济增长。于是很自然地，美国商务代表团在希拉里身后涌入非洲，作为排斥中国投资
的替代性方案。这个代表团包括波音(Boeing)、沃尔玛(Walmart)、联邦快递(FedEx)和
通用电气(G.E.)等大型美国公司的高管。
今年早些时候，沃尔玛敲定了一项价值逾20亿美元的协议，收购南非主要零售商麦氏玛
(MassMart) 51%的股份。今年3月，通用电气签订了一项协议，未来十年将在尼日利亚
投资1... 阅读全帖 |
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n*******w
发帖数: 6708 | 17 买BOEING 飞机和法国的空中客车总行吧
买个1000万架BOEING 飞机
以后北京郊区的就可以做，公共飞机上班了 |
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g**8
发帖数: 4951 | 19 【 以下文字转载自 Travel 讨论区 】
发信人: go88 (旧友重来), 信区: Travel
标 题: 分析一下波音787突然多公司多架次大面积事故的原因
发信站: BBS 未名空间站 (Thu Jan 17 00:59:04 2013, 美东)
最近日本的全日空和日航多架次波音787突然连续出现事故，由此引发日本和美国航空
当局先后下令停飞各自国家所有航空公司的全部波音787飞机。
不知是否因为我是一个硅工（硅谷工程师）而比较喜欢逻辑分析和推理的缘故，反正我
看了那些新闻，先是有不少疑问，然后经过一些分析，居然想到了一些可能的原因。
先说什么疑问：
1）为什么是日本的两个航空公司集中高发遇到问题？
2）波音787各航空公司首飞时间是什么时候，为什么突然现在集中突发问题？
先看几组数据，全部来自波音787的wiki网页：
－－波音787第一架交货是在2011年的9月25日，给日本的全日空的。
－－波音787第一次中短途商业飞行是2011年10月26日全日空的东京羽田机场到香港的
航班。
－－波音787第一次长途商业飞行是2012年1月12日还是全日空，从东京羽田到德国法
兰... 阅读全帖 |
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g**8
发帖数: 4951 | 20 三藩版一位网友找到了一篇去年12月初福布斯的文章，提到787的电子系统软件正是那
个阿三公司写的，而且被fcc去年12月前后检测时发现大问题，要求重写，而这次事故
几乎就是那个系统，这几乎就是坐实了对阿三软件补丁造成问题的分析判断。
http://www.forbes.com/sites/petercohan/2012/12/06/can-boeing-co
发信人: go88 (旧友重来), 信区: SanFrancisco
标 题: Re: 分析一下波音787突然多公司多架次大面积事故的原因 (转载)
发信站: BBS 未名空间站 (Thu Jan 17 23:28:46 2013, 美东)
thank you so much for this such important article! this is nearly the
smoking gun now :-)....这篇文章几乎坐实了之前的分析，就是a-san is the
culprit here,,,or at least they are the weakest link...
之所以说这篇文章重要而且几乎坐实了前... 阅读全帖 |
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f********t
发帖数: 6999 | 21 【 以下文字转载自 SanFrancisco 讨论区 】
发信人: go88 (旧友重来), 信区: SanFrancisco
标 题: 分析一下波音787突然多公司多架次大面积事故的原因 (转载)
发信站: BBS 未名空间站 (Thu Jan 17 01:00:08 2013, 美东)
发信人: go88 (旧友重来), 信区: Travel
标 题: 分析一下波音787突然多公司多架次大面积事故的原因
发信站: BBS 未名空间站 (Thu Jan 17 00:59:04 2013, 美东)
最近日本的全日空和日航多架次波音787突然连续出现事故，由此引发日本和美国航空
当局先后下令停飞各自国家所有航空公司的全部波音787飞机。
不知是否因为我是一个硅工（硅谷工程师）而比较喜欢逻辑分析和论证的缘故，反正我
看了那些新闻，先是有不少疑问，然后经过一些分析，居然想到了一些可能的原因。
先说什么疑问：
1）为什么是日本的两个航空公司集中高发现在的遇到的问题？
2）波音787各航空公司首飞时间是什么时候，为什么突然现在集中突发问题？
先看几组数据，全部来自波音787的wiki网页：
... 阅读全帖 |
|
z****e
发帖数: 54598 | 22 【 以下文字转载自 SanFrancisco 讨论区 】
发信人: go88 (旧友重来), 信区: SanFrancisco
标 题: 分析一下波音787突然多公司多架次大面积事故的原因 (转载)
发信站: BBS 未名空间站 (Thu Jan 17 01:00:08 2013, 美东)
发信人: go88 (旧友重来), 信区: Travel
标 题: 分析一下波音787突然多公司多架次大面积事故的原因
发信站: BBS 未名空间站 (Thu Jan 17 00:59:04 2013, 美东)
最近日本的全日空和日航多架次波音787突然连续出现事故，由此引发日本和美国航空
当局先后下令停飞各自国家所有航空公司的全部波音787飞机。
不知是否因为我是一个硅工（硅谷工程师）而比较喜欢逻辑分析和推理的缘故，反正我
看了那些新闻，先是有不少疑问，然后经过一些分析，居然想到了一些可能的原因。
先说什么疑问：
1）为什么是日本的两个航空公司集中高发遇到问题？
2）波音787各航空公司首飞时间是什么时候，为什么突然现在集中突发问题？
先看几组数据，全部来自波音787的wiki网页：
－－波音... 阅读全帖 |
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P*G
发帖数: 96 | 23 BOE起来了对中国这个彩电生产大国是件好事。
不过楼主吹得有些过了，呵呵。
BOE能够玩起来无非两个原因
1.TFT液晶面板的技术壁垒实际上很低。看看台湾以前有多少家面板厂就知道了。唯一
的壁垒是要砸钱。砸不起就挂了。京东方恰好砸得起钱。
2.这个行业回报很低。记得看过一个报告，过去十年所有厂家加起来的利润是负的。如
果算现金流的话更是亏到天上去了（因为资本投入大）。2010年后成长又饱和了。所以
大家都不愿意玩了。看清楚了这次不是因为中国起来了别人才不愿意玩的（很多其他产
业是这样）。
设备上关键的STEPPER不是尼康就是佳能。材料上关键的玻璃不是康宁就是旭日。液晶
应该主要是MERCK（不是很肯定）。这些短期内国产化可能性不大。 |
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r***e
发帖数: 2000 | 25 Pilots of the Asiana Airlines jet that crashed at San Francisco
International Airport over the weekend allowed the Boeing 777's speed to dip
dangerously low, and then apparently ran out of time to correct their
landing approach, according to preliminary data released by investigators.
While stopping short of pinpointing pilot error as the likely cause of the
fiery crash that killed two teenage passengers and injured dozens of others,
National Transportation Safety Board Chairman Deborah Hersman ... 阅读全帖 |
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k*****r
发帖数: 21039 | 26 日航777液压控制系统问题，紧急返回机场：
A Japan Airlines Boeing 777 bound for San Francisco returned to Tokyo early
Tuesday after a warning flashed in the cockpit saying the jet's hydraulic
fluid level was low.
The plane carrying 236 passengers and 13 crew had departed around midnight
and returned about four hours later to Tokyo's Haneda airport.
Passengers boarded another plane that departed for San Francisco and arrived
there safely early Tuesday local time, a company spokesman said.
Mechanics found a leak in t... 阅读全帖 |
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d**********i
发帖数: 4877 | 27 Boeing 787 Dreamliner catches fire at London Heathrow airport
Heathrow Airport has been closed after an Ethiopian Airlines Dreamliner just
caught fire. A tweet from the airport said the plane was stationary and no
passengers were on board. The cause of the fire is not known.
By Alastair Jamieson, Staff writer, NBC News
LONDON - Boeing's ill-fated 787 Dreamliner was involved in another incident
Friday when a jet caught fire at London's Heathrow airport, forcing the
closure of both runways for m... 阅读全帖 |
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g*q
发帖数: 26623 | 28 原来韩亚飞行员能用自动驾驶就可以上岗了.....
July 16 (Bloomberg) -- As the Asiana Airlines Inc. jet neared Los Angeles
International Airport, Captain Vic Hooper told his Korean co-pilot to make a
visual approach, meaning he’d manually fly instead of letting automation
do the work.
The co-pilot froze, leaving them too high and off course, Hooper said about
the incident, which occurred several years ago. Hooper said he had to take
over the controls to get the Boeing Co. 777 back on track.
“I don’t need to know this,”... 阅读全帖 |
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l*******o
发帖数: 5673 | 29 Companies ruined or almost ruined by imported Indian labor
http://a1b5jj.blogspot.com/2012/12/why-does-adobe-software-qual
Companies ruined or almost ruined by imported Indian labor
Adaptec - Indian CEO Subramanian Sundaresh fired.
AIG (signed outsourcing deal in 2007 in Europe with Accenture Indian frauds,
collapsed in 2009)
AirBus (Qantas plane plunged 650 feet injuring passengers when its computer
system written by India disengaged the auto-pilot).
Apple - R&D CLOSED in India in 2006.
Austral... 阅读全帖 |
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C*********l
发帖数: 10248 | 30 Israel is the only nation to get more U.S. aid than Egypt since the end of
the 1940s. Through 2011, the U.S. had committed $71.6bn in military and
economic aid to maintaining good U.S-Egyptian relations and peace between
Egypt and Israel.
The Huffington Post published a list of some of the weapons packs that have
been included:
125 M1A1 Abrams tanks
Cost: $1.3 billion in 2011
Defense Contractor: General Dynamics; Honeywell; Allison Transmission
24 F-16 fighter aircraft
Cost: $3.2 billion in 2009... 阅读全帖 |
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A**4
发帖数: 2165 | 31 Union is the main issue.
As to the airfield, Boeing has two in Seattle area, Pane field and Boeing
field. |
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b********n
发帖数: 38600 | 32 http://www.computerworld.com/s/article/9243523/Healthcare.gov_m
Companies ruined or almost ruined by imported Indian labor
Companies ruined or almost ruined by imported Indian labor
Adaptec - Indian CEO Subramanian Sundaresh fired.
AIG (signed outsourcing deal in 2007 in Europe with Accenture Indian frauds,
collapsed in 2009)
AirBus (Qantas plane plunged 650 feet injuring passengers when its computer
system written by India disengaged the auto-pilot).
Apple - R&D CLOSED in India in 2006.
Austral... 阅读全帖 |
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b********n
发帖数: 38600 | 33 发信人: beijingren (to thine own self be true), 信区: Military
标 题: 阿三威武，瞧瞧阿三 ruined 公司
发信站: BBS 未名空间站 (Fri Oct 25 18:50:22 2013, 美东)
http://www.computerworld.com/s/article/9243523/Healthcare.gov_m
Companies ruined or almost ruined by imported Indian labor
Companies ruined or almost ruined by imported Indian labor
Adaptec - Indian CEO Subramanian Sundaresh fired.
AIG (signed outsourcing deal in 2007 in Europe with Accenture Indian frauds,
collapsed in 2009)
AirBus (Qantas plane plunged 650 feet inju... 阅读全帖 |
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k******a
发帖数: 2436 | 34 An Asiana Airlines Inc. (020560) pilot nervous about making a manual landing
in San Francisco inadvertently disabled a speed-control system before the
plane crashed into a seawall on July 6, documents show.
Captain Lee Kang Kuk, a veteran pilot with Seoul-based Asiana who was being
trained on the Boeing Co. (BA:US) 777-200ER wide-body, had momentarily
adjusted the power without realizing the plane’s computers then assumed he
wanted the engines to remain at idle, according to information released... 阅读全帖 |
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m*****n
发帖数: 1513 | 35 Boeing是无数产业工人积起来
Boeing飞机比个烂office牛逼1万倍
我不花钱能用OpenOffice ,你不花钱能坐openBoeing吗？ |
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m*****n
发帖数: 1513 | 36 你还不如说都是人编的
搞openoffice这帮人，劳动并未获报酬
纯属个人爱好，可见码工入门槛之低
总之, Boeing 比微软牛
Boeing 的产业工人也比微软产业工人重要 |
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s*****V
发帖数: 21731 | 37 【 以下文字转载自 Military2 讨论区 】
发信人: saturnV (土星五号), 信区: Military2
标 题: ELON MUSK对大型国企十分悲愤
发信站: BBS 未名空间站 (Wed Jan 8 14:02:36 2014, 美东)
United Launch Alliance, the consortium of Boeing and Lockheed Martin that
produces both the Delta and the Atlas, does not make its prices public. But
budget documents show that in 2010 the EELV program received $1.14 billion
for three rockets—an average of $380 million per launch. And prices are
expected to rise significantly in the next few years, according to defe... 阅读全帖 |
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g**1
发帖数: 10330 | 38 The plane is a Boeing B777-200 aircraft, which according to airliners.net,
incorporates more advanced technologies than any other previous Boeing
airliner, and has been progressively developed into increasingly longer
range developments.
--------
Here's the press release:
Sepang, 8 March 2014: Malaysia Airlines confirms that flight MH370 has lost
contact with Subang Air Traffic Control at 2.40am, today (8 March 2014).
Flight MH370, operated on the B777-200 aircraft, departed Kuala Lumpur at 12
.... 阅读全帖 |
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C*********l
发帖数: 10248 | 39 The airline said in a statement that Subang Air Traffic Control in Malaysia
lost contact with Flight MH370 at 2:40 a.m. (1:40 p.m. ET Friday).
The Boeing 777-200 departed Kuala Lumpur for Beijing at 12:41 a.m.
The Boeing 777-200 departed Kuala Lumpur at 12:41 a.m. and was expected to
land in Beijing at 6:30 a.m., a 2,300-mile (3,700 kilometer) trip. |
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O*******d
发帖数: 20343 | 40 波音747-400。 日本用改装型的飞国内航线。 安装了500多个座位。最多可以安660个
座位
The 747-400, the most common passenger version in service, is among the
fastest airliners in service with a high-subsonic cruise speed of Mach 0.85
–0.855 (up to 570 mph or 920 km/h). It has an intercontinental range of 7,
260 nautical miles (8,350 mi or 13,450 km).[11] The 747-400 passenger
version can accommodate 416 passengers in a typical three-class layout, 524
passengers in a typical two-class layout, or 660 passengers in a high
density one-... 阅读全帖 |
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c*****e
发帖数: 737 | 41 Boeing 777-2H6ER
Registration(75008F)
9M-MRO
Altitude
0 ft Vertical Speed
0 fpm
Speed
471 kt Track
40°
Latitude
6.93 Longitude
103.59
Radar
F-WMKC1 Squawk
2157
之前
Aircraft(B772)
Boeing 777-2H6ER
Registration(75008F)
9M-MRO
Altitude
35,000 ft Vertical Speed
0 fpm
Speed
474 kt Track
25°
Latitude
6.8 Longitude
103.52
Radar
F-WMKC1 Squawk
2157 |
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z*****4
发帖数: 835 | 42 搜了下wiki，发现除了毛子以外，PLA、NATO还有许多大国小国都有打飞机的历史。
http://en.wikipedia.org/wiki/List_of_airliner_shootdown_inciden
1940s[edit]
Kaleva OH-ALL[edit]
Main article: Kaleva (airplane)
Junkers Ju 52-3/mge "Kaleva" OH-ALL was a civilian transport and passenger
plane operated by the Finnish carrier Aero O/Y, shot down by two Soviet
Ilyushin DB-3 bombers on June 14, 1940, while en route from Tallinn, Estonia
, to Helsinki, Finland.[1] This occurred during the Interim Peace between
Finland and the Soviet Union, t... 阅读全帖 |
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g**1
发帖数: 10330 | 43 No automated messages from missing Boeing jet: sources
KUALA LUMPUR Mon Mar 10, 2014 2:30pm EDT
(Reuters) - The Malaysian passenger jet that disappeared on Saturday did not
make automatic contact with a flight data-monitoring system after vanishing
from radar screens, two people familiar with the matter said.
The Boeing 777-200ER is equipped with a maintenance computer capable of
talking to the ground automatically through short messages known as ACARS.
These help technicians prepare any necessa... 阅读全帖 |
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c******n
发帖数: 5697 | 44 Eleven years ago, a shiny silver Boeing 727 airliner took off from Luanda,
Angola, and became one of the few commercial jetliners to vanish and never
be found.
Massive jet airplanes disappear more often in fiction than in real life, but
it does happen. In 1979, a Boeing 707 with six people aboard was lost in
the Pacific Ocean after leaving Tokyo. And dozens of smaller planes have
gone missing and never been located.
The Aviation Safety Network, a database tracking accidents, lists 80 planes
as "... 阅读全帖 |
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o*****D
发帖数: 1563 | 45 100%不是777的
那图已经够了，至今Boeing没回应，肯定不是了。
如果是，Boeing早出来作证了。 |
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g******o
发帖数: 4042 | 46 ETOPS emergency landing site[edit]
Diego Garcia may be identified as an ETOPS (Extended Range Twin Engine
Operations) emergency landing site (en route alternate) for flight planning
purposes of commercial airliners. This allows twin-engine commercial
aircraft (such as the Airbus A330, Boeing 767 or Boeing 777) to make
theoretical nonstop flights between city pairs such as Perth and Dubai (9,
013.61 km or 5,600.80 mi), Hong Kong and Johannesburg (10,658 km or 6,623 mi
) or Singapore and São ... 阅读全帖 |
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G*****h
发帖数: 33134 | 47 6:23 pm
Two sources familiar with the investigation also confirmed that
manufacturers Boeing and Rolls-Royce did not receive any maintenance data
from the plane after the point at which its pilots last made contact.
Only one engine maintenance update was received during the normal phase of
flight, they said,
Boeing and Rolls-Royce declined to comment.
http://www.mirror.co.uk/news/world-news/missing-malaysia-airlin |
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g**1
发帖数: 10330 | 48 Missing Flight Left Data Trail
Jetliner 'Pinged' Satellites With Location, Altitude for Hours After
Disappearance
Communication satellites received intermittent data "pings" from a missing
Malaysia Airlines 3786.KU -4.08% jet, giving the plane's location, speed
and altitude for at least five hours after it disappeared from civilian
radar screens, people briefed on the investigation said Thursday.
The final satellite ping was sent from over water, at what one of these
people called a "normal" cr... 阅读全帖 |
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T**********e
发帖数: 29576 | 49 军用雷达一开始就知道这架飞机往印度洋飞了5个小时，憋着不说，现在都出来了，烙
印开始出动搜查印度洋小岛。
Reuters: Plane followed known routes west
The latest speculation about the missing Malaysia Airlines jet: Whoever was
flying the plane after it vanished seems to have known what they were doing.
That surmise picked up steam Friday after Reuters, citing unnamed sources
from Kuala Lumpur, reported that military radar suggests that the Boeing 777
took a path between known “navigational waypoints” as it flew westward
following its disappearance, “... 阅读全帖 |
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o*****D
发帖数: 1563 | 50 KUALA LUMPUR: Malaysian investigators are increasingly certain that the
missing jetliner turned back across the country after losing communications,
and that someone with aviation skills was responsible for the unexplained
change in course, according to a government official involved in the probe.
The official, who declined to be identified because he is not authorized to
brief the media, said only a skilled person could navigate the Boeing 777
the way it was flown after its last confirmed locat... 阅读全帖 |
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