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全部话题 - 话题: airframe
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d*********e
发帖数: 3835
1
By Niall O’Keeffe
For Airbus and Boeing, 2010 brought an orders bounceback that will surely
continue in 2011. In 2009, Airbus won 271 net orders while its US rival
notched just 142. But the relative buoyancy of the market in 2010 can be
gauged from tallies the airframers posted in November. For the first 11
months of the year, Airbus recorded 388 net orders. Boeing fared even better
, with a comparable figure of 489.
Regarding deliveries, the airframers' fortunes contrasted. After reaching
498 a... 阅读全帖
r********n
发帖数: 6979
2
Kenu Airframe+ Car Mount Holder for Smartphones Up to 6" [att.com] (Phablets)
$30 - $20 off code COLIN20, ROBERT20, JACOB20, RANDAL20, or ETHAN20 (thanks
abiRo)
= $10 with free shipping
w*********g
发帖数: 30882
3
澳大利亚航空专业人士对丝带图片的评论,感觉是目前为止最实在最客观的zt
来源: awzh 于 2010-12-29 11:35:08 [档案] [博客] 旧帖] [转至博客] [给我悄悄话
] 本文已被阅读:0次 字体:调大/调小/重置 | 加入书签 | 打印 | 所有跟帖 | 加跟
贴 | 查看当前最热讨论主题 Australia Air Power on J-20
Dr Carlo Kopp
Over the last few days imagery of what is claimed to be China's new stealth
fighter has appeared on a range of Chinese Internet sites. There have been
no official disclosures as yet, so many of the claims appearing in the media
may only be speculation presented as fact.
在过去几天里被称为是中国的新型隐身战机的图片在大批中国军事... 阅读全帖
v**e
发帖数: 8422
4
全文照翻:澳大利亚航空专业人士对丝带图片的评论,感觉是目前为止最实在最客观的
送交者: stdlxz13 2010年12月29日
Australia Air Power on J-20
Dr Carlo Kopp
Over the last few days imagery of what is claimed to be China's new stealth
fighter has appeared on a range
of Chinese Internet sites. There have been no official disclosures as yet,
so many of the claims appearing in
the media may only be speculation presented as fact.
在过去几天里被称为是中国的新型隐身战机的图片在大批中国军事网站上出现。现在还
没有官泄,所以很多细节大家其
实都是在YY。(不过作者基本默认不是PS)
The aircraft may be a technology demonstrator ... 阅读全帖
h*l
发帖数: 807
5
来自主题: Military2版 - F-22 Assertions and Facts
read between the lines,you can figure out what it means.
Assertion: F-22 production uses a shim line and national spreading of
suppliers has cut quality, thus the F-22 lacks interchangeable parts.
Fact: The F-22 does not have a shim line. During the earliest stages of
production while tooling was undergoing development, there were a few
aircraft with slight differences which were subsequently modified. The F-22
supplier base is the best in the industry, as demonstrated by the aircraft’
s high qu... 阅读全帖
t*******r
发帖数: 22634
6
来自主题: Military2版 - 我认为f-22是一款不合时宜的武器
是,你说的不错。但是现在概念跟以前有所不同,所谓 F22 / F35 其实是
一个 airframe,同样一个 airframe 里面可以装很多不一样的东西,同一
个 airframe 也可以稍作修改有不同的版本。这样造成战斗力的差别就很大,
举个例子就是普通 F18 大黄蜂与超级 F18 大黄蜂的区别。超级大黄蜂是担
任 F14 雄猫的任务的。
关于外销的问题,外销拿掉核心技术卖一个“猴”型版就好了。虽然对方可以
反向工程,但是毕竟不是对方开发的,对方要把“猴”型版上反向工程到能
跟自己有全套图纸技术人员开发经验的团队二次开发相比,门槛高多了。
c*********r
发帖数: 19468
7
来自主题: Military2版 - 我为什么说F35战机是个坑
虽然小看F-35是不对的,不过说到价格你这算法也不对……
F-35A最近一批LRIP单价降到一亿以下,不过那只是airframe的价格
你还得加上其它几个分开算的合同,其中光F-135引擎每台就超过三千万
全都加起来超过一亿五千万是没跑的……
拿LRIP Lot5来说,airframe单价一亿三千万,总价就超过两亿了……
airframe的价格是在下降,但引擎基本上没降,甚至还在升
总之,将来外销的价格在两亿五千万以内就算不错了……
c**i
发帖数: 6973
8
(1) You are dreaming. China does not have any navalized aircraft, nor will
it have in a couple of years. With stolen blueprint, China can not even
produce a J-15, let alone AWACS.
(2) By the way China's LAND-based AWACS is a joke, its developers having
died in the June 3, 2006 crash.
KongJing-2000 (or KJ-2000) is a direct result of failed A-50I (I as in India
, not arabic numeral number "one") program. "China started a three-way talk
with Israel and Russia in 1994 for a possible purchase of adva... 阅读全帖
g**1
发帖数: 10330
9
China's C919 first flight pushed back to end-2015
Twitter
Print
By: MAVIS TOH SINGAPORE 03:25 7 Aug 2013 Source:
http://www.flightglobal.com/news/articles/chinas-c919-first-fli
The chairman of an advisory committee on the C919 aircraft programme has
revealed that the narrowbody's first flight is now set for the end of 2015,
a push back from the original 2014 schedule.
Speaking on China's aviation industry medium to long-term development plan,
Zhang Yanzhong explains that Chinese airframer Co... 阅读全帖
n***l
发帖数: 143
10
来自主题: Military版 - 飞机没有GPS信号吗?
应该是有的,看来是失效了。Big bless.
http://en.wikipedia.org/wiki/GPS_Aircraft_Tracking
GPS Aircraft Tracking
From Wikipedia, the free encyclopedia
Contents [hide]
1 How it works
2 Benefits
3 Manufacturers of GPS aircraft tracking devices for general aviation
4 References
How it works[edit]
GPS aircraft tracking solution needs a device embedded in the aircraft and
made of a GPS sensor. It transmits in real time or not the GPS position
received on board to a server on ground via a communication network. The
... 阅读全帖
T**********e
发帖数: 29576
11
来自主题: Military版 - SpaceX第一个火箭发射四次才成功

自己家的,9-11以后难道没被fbi监控。
In late 2001, Tom Mueller was sacrificing his nights and weekends to build a
liquid-fuel rocket engine in his garage.
Mueller, a propulsion engineer at Redondo Beach, Calif.–based aerospace
firm TRW, felt like an “unwanted necessity” at his day job. His prolific
ideas about engine design were lost at such a large, diverse company. To
satisfy his creative impulses, he built his own engines, attached them to
airframes and launched them in the Mojave Desert with fellow enthus... 阅读全帖
v**e
发帖数: 8422
12
美国《航空周刊》12月30日有关J-20的最新文章
http://www.fyjs.cn/bbs/htm_data/27/1012/300937.html
Bill Sweetman(名字可以音译为 比尔. 思维特慢 )是《航空周刊》下属的《防务科
技》的总编。自J-20露面来,他已撰写多篇文章跟踪报道,在美国的航空爱好者中引发
广泛的对J-20的关注。
China's J-20 Stealth Fighter In Taxi Tests
中国J-20隐形飞机滑跑测试
作者:Bill Sweetman
华盛顿,12月30日
China’s first known stealth aircraft just emerged from a secret development
program and was undergoing high-speed taxi tests late last week at Chengdu
Aircraft Design Institute’s airfield. Said to be designated J-20, it is
larger than ... 阅读全帖
g****g
发帖数: 310
13
http://www.telegraph.co.uk/news/worldnews/asia/china/8241968/Ch
Douglas Barrie, an aerospace expert at the International Institute of
Strategic Studies, noted that the J20's airframe resembled that of an
abandoned Russian prototype, the MiG 1.42.
"I'm not sure that its even much of an impressive airframe," said Richard
Aboulafia, another analyst. "It looks like something that might have been
designed in 1985."
For the most part, China's combat aircraft programme has lagged behind its
competitors... 阅读全帖
p*********e
发帖数: 32207
14
问题是通常给出来的flight time寿命指的都是airframe而不是engine哎
似乎战斗机开加力的时间占所有flight time的比例是很小的
如果只是军用推力飞行的话,论发动机负载恐怕还没有民机高
像波音空客那些飞机常年都是跑800-1000kmph也就是接近极速
如果考虑输出/峰值输出的话应该高过战斗机,毕竟后者剩余推力更大
绝对推力的话,像A380上用的TRENT 900系列,标定推力都是三百多千牛
查了一下压缩比在37-39,那么涡轮前温度也相当可观
而涡扇的转速总归低不下来,虽然我没有比方说trent900 vs f119的具体数字
但应该都是在几万转的量级
那么总结说来,军机民机的寿命,最大差别还是应该在airframe而不是engine
当然,民机引擎输出相对稳定,军机的话相比而言变化会多一些
这方面肯定会有影响,但恐怕不是主要贡献,相比上面的分析来说
j*********r
发帖数: 654
15
来自主题: Outdoors版 - 求一身入门级防雨
Z55 要是背着舒服才怪了。那个所谓的airframe, 是极其不符合人体工学的设计。
背包的重心和个人的重心的水平距离越是相近越是ergonomically efficient。但是为
了迎合消费者不想要后背汗湿,airframe使得背包的重心离开后背好远,totally
stupid!

包的
z**n
发帖数: 22303
16
【 以下文字转载自 Military2 讨论区 】
发信人: vuse (vuse), 信区: Military2
标 题: 美国《航空周刊》12月30日有关J-20的最新文章
发信站: BBS 未名空间站 (Sat Jan 1 23:59:06 2011, 美东)
美国《航空周刊》12月30日有关J-20的最新文章
http://www.fyjs.cn/bbs/htm_data/27/1012/300937.html
Bill Sweetman(名字可以音译为 比尔. 思维特慢 )是《航空周刊》下属的《防务科
技》的总编。自J-20露面来,他已撰写多篇文章跟踪报道,在美国的航空爱好者中引发
广泛的对J-20的关注。
China's J-20 Stealth Fighter In Taxi Tests
中国J-20隐形飞机滑跑测试
作者:Bill Sweetman
华盛顿,12月30日
China’s first known stealth aircraft just emerged from a secret development
program and was undergo... 阅读全帖
r****r
发帖数: 755
17
来自主题: Aviation版 - ARJ21体现了什么?
这个叫做 Airframe Manufacturers,波音,空客,巴西Embraer 都是
现在的趋势是航空制造业的三大块:
Airframe Manufacturer,
suppliers
service providers
分工越来越明确。
这个好处是降低风险,用户的选择可以更多(发动机,航电等都可以换),
supplier 专精一门,也可以做的更好。
d*********e
发帖数: 3835
18
Imagery emerged on the Internet last weekend showing China’s latest stealth
fighter in prototype form. With fifth-generation characteristics, it bears
a distinct resemblance to the Lockheed Martin F-22A Raptor and F-35A/C
Lightning II stealth fighter designs, and appears to be similar in size to
the latter. Photos of the twin-engine aircraft on the ground at an
unidentified airfield–possibly Xian-Yanliang airbase–were leaked the day
before U.S. Secretary of Defense Leon Panetta started a three-d... 阅读全帖
p*********e
发帖数: 32207
19
来自主题: _Auto_Fans版 - Model 3说是要交第一批车了
不是这样呀,比如F22,它的airframe需要考虑相当多关于机动性的需求
不同速度,不同高度下的机动性,
因此无论从空气动力学设计还是机体强度上都要求高得多,限制多得多
但客机的话只需要考虑一个固定的最优巡航高度的固定巡航速度的飞行就好
完全不要求机动性,就是要飞得快并且尽量省油
其实想想看协和的情况,可以越大西洋持续四小时左右两倍因素,坐一百多人,
这还是六十年代的技术水平,用的涡喷发动机。
仅仅是机体材料(减重)和发动机技术(节油)上的升级
就可以让协和的燃油经济性(因此航程)有明显提升
且不说这几十年过去,airframe本身的设计能力也有了相当大的提高
在减阻方面也会有不小贡献
那么几方面因素考虑下来,技术上做一个两倍音速巡航跨太平洋,
同时使用成本比协和更低的几十座的民航机完全没有问题
而协和在后期已经可以经济上打平了。后来退役,一个是出了大事故,
另一个是机队太小,维持备件供应不划算。
所以我觉得,要做2707那样三倍音速载客二三百人的卫星式项目可能还是不容易
但两倍因素越太平洋,技术上和商业上都没有明显障碍。
p*********e
发帖数: 32207
20
来自主题: _Auto_Fans版 - Model 3说是要交第一批车了
首先,f119是二十多年前的技术了,不妨看看九几年民航发动机和现在的经济性差别
其次,yf23超巡性能更好至少相当大比重来自它的airframe设计
同时,如果做一个专门为两倍音速巡航优化的发动机,以今天的技术前沿看还能做的更好
空阻系数是啥?
我们就现实一点,仅仅考虑协和。这是一百座的飞机,两马赫巡航,4505mile航程
lax到pvg距离是6232航程
提高40%航程就可以完成lax到pvg
我们不考虑airframe设计带来的减阻贡献
仅仅考虑复合材料机身和更大推重比发动机带来的减重,以及经济性更好的发动机带来
的更低的油耗
这两方面提高4成航程很离谱么?
那我再做只要60人容量的呢?且不说机体设计上现在相对六十年代的长足进步?
油价,14年到现在跌了几年了而且完全没有大力反弹迹象。
实际上目前已经有公司在针对这个市场开发机型了,最近一次看到新闻做了一个缩比的
可以有人驾驶飞的验证机。
c**i
发帖数: 6973
21
来自主题: Military版 - C919 and ARJ21
Read the MRJ report by Wall Street Journal, where Mitsubishi claims
proprietary airframe technolgy: cheaper, lighter and better.
What is TJ, by the way?
R****a
发帖数: 6858
22
空中力量澳大利亚 文章: 中国新型J20隐形战机对F35和F/A-18意味着什么.
来源: googleit 于 2010-12-31 15:09:43 [档案] [博客] 旧帖] [转至博客] [给我悄
悄话] 本文已被阅读:186次 字体:调大/调小/重置 | 加入书签 | 打印 | 所有跟帖
| 加跟贴 | 查看当前最热讨论主题 摘要:
F35基于错误的理论"飞机的机动性无关紧要,让导弹做转圈的活. "
* 第一, 假定F35能撑到可发射导弹的位置, 但是J20和T50拥有低可探测性, 又非得多
快得多, 因而使他们的下视下射导弹拥有先发制人的优势;
* 第二, 更危险的是, J20和T50有超强的应对来袭导弹的措施(包括超机动, 隐形等,超
高速,及电子对抗措施, 让F35会转圈的导弹无法得手.由于自大地认为敌人的导弹无法
穿透F35隐形技术的屏障,F35的相应应对能力要差得多.
* 第三, F35紧急应变能力原本似乎不必要的,但现在J20依仗其隐形和高速会飞快地出
现在打完导弹的F35面前,迫使它进入并不擅长的缠斗.
http://www.ausairpower.net/AP... 阅读全帖
c**i
发帖数: 6973
23
来自主题: Military版 - Divertless Supersonic Inlet (DSI)
(1) F-35
http://www.jsf.mil/f35/f35_technology.htm
(Technology: "Diverterless Inlet The F-35's diverterless inlet lightens
the overall weight of the aircraft. Traditional aircraft inlets were
comprised of many moving parts and are much heavier than newer diverterless
inlets. The diverterless inlet also eliminates all moving parts.")
(2) Divertless inlet
(a) Photo: frontal view of J-20.
http://www.flightglobal.com/blogs/flight-international
/2011/01/j-20---the-camera-doesnt-lie.html
(b) Timur ... 阅读全帖
M*****8
发帖数: 17722
24
来自主题: Military版 - 隐形技术的血泪源头。(ZT)
隐形技术的血泪源头。(ZT)
The tearful origins of China's stealth
By Peter Lee
The recent test flight of China's J-20 stealth fighter has occasioned
certain uproar in international security circles, as well as paroxysms of
joy among China's more nationalistic netizens.
Despite no hard information on its stealthiness or its capabilities beyond
the fact that it was able to take off, fly for 15 minutes, and land, the J-
20 is already serving as justification for heightened concern and its
inevitable adjunct, h... 阅读全帖
g**1
发帖数: 10330
25
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
c**i
发帖数: 6973
26
来自主题: Military版 - Splitting Taiwan's Baby
Editorial: Splitting Taiwan's Baby; Upgrading old F-16s is inadequate for
the US aly's defense. Wall Street Journal, Aug 22, 2011
http://online.wsj.com/article/SB10001424053
111903596904576515933648266482.html
("These aging [F-16 A/B] airframes reportedly will get sophiscated radars
and electronic countermeasures that on some ways will make them more capable
than the US Air Force's own F-16s. So in order to make up for the shortfall
in Taiwan's defenses caused by its unwillingness to sell plain ... 阅读全帖
c**i
发帖数: 6973
27
来自主题: Military版 - Sukhoi Superjet
------------------------------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
c*******2
发帖数: 617
28
The J-11B variant while lacking the latest Russian features, does
incorporate various Chinese modifications to the airframe in addition to the
inclusion of Chinese technologies such as avionics and weaponry (wiki)
中国的山寨机, 除了发动机, 外形是有所变化, 航电, 雷达, 武器, 则都是自己
的。 这种情况, 西方, 俄国, 老将, 还去强调土共的"copy", "steal", 是很可笑
的。a根本不存在。
关键是, B还是C?
C还可以细分。 山寨机, 超过俄国的中国出口型, 绝对没问题。 当然, 俄国也没停
止进步,最新型的su-27, 和最新型的J11, 谁更好?
d**********i
发帖数: 4877
29
来自主题: Military版 - 隐轰?
http://www.foreignpolicy.com/articles/2013/06/11/is_this_chinas
You're looking at what some people are speculating is China's design for a
stealth bomber. It may look like a simple model right now. But these Chinese
models have a habit of turning into working airplanes. And if that happens
in this case, watch out. Because it could potential give these Chinese the
ability to penetrate deep, deep into enemy territory without the opponents
ever knowing what hit them.
Remember, designs very similar ... 阅读全帖
T**********e
发帖数: 29576
30
波音裸马的联合发射公司垄断政府发射合同,价格越来越贵,用的atlas v得进口毛子
发动机,现在被Elon找着机会在国会狠骂一通。这次乌克兰危机对SpaceX是利好。
SpaceX's Elon Musk chides Senate for paying too much for launches
WASHINGTON, March 6 (UPI) -- Elon Musk accused Congress of wasting money
that could be better spent on innovation by vastly overpaying for each space
launch.
Musk, the CEO of SpaceX, said the monopoly held by the United Launch
Alliance, a joint venture between Boeing and Lockheed Martin that provides
all the space launches for the Air Force, has pr... 阅读全帖
l*****0
发帖数: 1207
31
来自主题: Military版 - “天下无敌”的武器
很想知道中国在无人机的进展,所以看看大家有何见解?
中国发展了很多新型武器,什么航母,歼-30战机。。。等等等,但多数人都认为,中
国自保能力还是很有问题,甚至连小日本都打不赢。
这也有道理,因为现代的中国军队里,腐败,怕死,素质。。。等等等都很切实。所以
才有习近平,要大声说出“要会打仗,要打胜仗”大家想想,美国总统根本不用对他的
军队说出这种话。虽然这句话是正能量的鼓励,不过,也说出现在的解放军还能打仗吗
?请别介意我的语言,是希望中国正视当今的情况。
中国官方一直强调中国不称霸,问题是全世界不认为,加上小日本在煽动,中国再三强
调,反而变成此地无银三百俩。实际上,我还真的认为在50年内中国根本没有本事称霸
,可惜全世界就是这么反常,被小日本蒙骗了。
基于八国联军的教训,老实说,中国只要做到立于不败之地就行了,可是,以现实的军
力,中国还是做不到“永远”立于不败之地。本来核武器有这可能性“永远不败之地”
,可惜的是,那是同归于尽的结果,但是现在可以做到,那就是无人机。
因为无人机是“天下无敌”的武器,除 了核武器(但大家不敢用),大家也不用担心
解放军的腐败,怕死,背叛,因为它是0... 阅读全帖
s******t
发帖数: 1956
32
来自主题: Military版 - 印度恨死俄版的T50了
Russia’s new T-50 stealth fighter is fast, maneuverable, heavily-armed and
hard to detect on radar. In theory.
But according to Indian air force officials, in practice the Sukhoi-made
stealth jet is also too expensive, poorly engineered and powered by old and
unreliable engines.
The Indians’ complaints illustrate the yawning gulf between stealth
warplane design and the actual production of radar-evading jets. In other
words, it’s one thing to sketch an advanced warplane on paper. It’s quite
anot... 阅读全帖
G*******n
发帖数: 6889
33
来自主题: Military版 - 西科斯基才值90亿美元?
各种型号
http://www.helis.com/database/model/18/
出场单价和终生价
http://www.bga-aeroweb.com/Defense/UH-60-Black-Hawk.html
Price/Unit Cost:
In FY 2015, The unit cost of a UH-60M is $16.96 million down from $17.44
million in FY 14 (flyaway cost). The cost of the airframe is $11.89 million,
the avionics package costs $662,000, the T700-GE-701D engines cost $739,000
each ($1.48 million total), with other costs making up the remaining $2.93
million.
Total Cost - Life of Program (LoP):
The total procurement cost... 阅读全帖
w***n
发帖数: 766
34
确实不是从零开始
看看零部件来源:http://www.airframer.com/aircraft_detail.html?model=C919
零部件从哪里来不重要,问题是你别吹啊,至少上天了在吹
s****r
发帖数: 31686
35
来自主题: Military版 - 考考诸位将军
作为 airframe 公司,最核心,最重要,最体现专业水平,而且必须自己全部掌握的的
部分是飞机的那个地方?有之则可傲立世界飞机制造商之林?

发帖数: 1
36
安-24 所有事故:
1960s
1962
29 July 1962
A MAP Kiev MSZ An-24 (CCCP-46708) overran the runway at Sheremetyevo
Airport following an aborted takeoff.[1]
1965
20 March 1965
An Aeroflot An-24 (CCCP-46764) landed short of the runway at Khanty-
Mansiysk Airport, struck a snow drift and broke up, killing 43 of 47 on
board.[2]
1966
2 February 1966
A United Arab Airlines An-24 (SU-AOB) crashed at Luxor, Egypt during a
test flight.[3]
18 March 1966
United Arab Airlines Flight 749 crashed while a... 阅读全帖
s*****V
发帖数: 21731
37
伐木工的儿子,做了4个暑假的伐木工才赚取学费,也只上了一个烂校州立。开来美国
搞军工也要考西工大。
此后在TRW工作15年,主持60吨级氢氧火箭发动机的开发。 不满工作中意见不被采纳,
自己在车库里造液体火箭。直到他被ELON MUSK发现,拜为spaceX总师,开发Merlin火
箭发动机。
Mueller was born in St. Maries, Idaho.[4] His father was a logger and wanted
Mueller to be one as well.[5] Mueller compares his story to that of Homer
Hickam, growing up in a hard-working family and going off to be an engineer
instead of following in his father's footsteps.[4] As a kid, he would build
and fly Estes model rockets. He continued to expe... 阅读全帖

发帖数: 1
38
“极不可靠”,五角大楼拒绝福特号航母
发表于 2018-2-14
www.thedrive.com/the-war-zone/18318/shock-trials-or-no-the-navys-newe
www.businessinsider.com/the-navys-new-urinal-free-supercarrier-is-facing-a-
ton-of-problems-2018-2
经过2017年一整年的验收过程后,五角大楼递交给国防部长马蒂斯的报告这样评价福特
号航母:----“极差、乃至于不可预知的可靠性” 。【poor or unknown reliability】
被评价为“几乎不可信任”的关键系统包括:电磁弹射、电磁拦阻、武器升降机、雷达
。【"poor or unknown reliability" among many of the Ford's essential systems
, including newly designed catapults, arresting gear, weapons elevators, and
radar.】
报告... 阅读全帖
h**o
发帖数: 1084
39
来自主题: Military版 - 经过2017年一整年的验收过程后
http://www.businessinsider.com/the-navys-new-urinal-free-supercarrier-is-facing-a-ton-of-problems-2018-2
经过2017年一整年的验收过程后,五角大楼递交给国防部长马蒂斯的报告这样评价福特
号航母:----“极差、乃至于不可预知的可靠性” 。【poor or unknown reliability】
被评价为“几乎不可信任”的关键系统包括:电磁弹射、电磁拦阻、武器升降机、雷达
。【"poor or unknown reliability" among many of the Ford's essential systems
, including newly designed catapults, arresting gear, weapons elevators, and
radar.】
报告说,Fa-18F战机在弹射过程中,其承力框架经受了“过度的冲击力”【"excessive
airframe stress" on launches】。
这说明电磁弹射系统,并没有像设计中那样能调... 阅读全帖
g**1
发帖数: 10330
40
来自主题: Military版 - 比大陆老将说晚了
http://sputniknews.com/asia/201803231062835269-chinese-j20-not-undetectable-iaf/
Indian Air Force Claims China's J-20 Stealth Fighter Jets Are Not
Undetectable © REUTERS/ Stringer
ASIA & PACIFIC
21:21 23.03.2018(updated 21:22 23.03.2018) Get short URL92030
The J-20 stealth aircraft is a twin-engine, multi-role fighter that has an
exceptionally long range and can fly faster than 2,000 kilometers per hour.
It is said that its radar-scattering airframe is made up of radar-absorbing
materials t... 阅读全帖
s*x
发帖数: 8041
41
来自主题: Military版 - 看不见图。不过听起来忒nb
http://sputniknews.com/asia/201803231062835269-chinese-j20-not-undetectable-iaf/
The J-20 stealth aircraft is a twin-engine, multi-role fighter that has an
exceptionally long range and can fly faster than 2,000 kilometers per hour.
It is said that its radar-scattering airframe is made up of radar-absorbing
materials that supposedly makes it hard to detect at long ranges.
New Delhi (Sputnik): The Indian Air Force (IAF) has claimed that it has the
resources to easily track the Chinese military's n... 阅读全帖

发帖数: 1
42
来自主题: Military版 - 无标题
FUKUOKA (Kyodo) -- A U.S. F-35 stealth fighter made an emergency landing at
an Air Self-Defense Force base in the southwestern Japan prefecture of
Fukuoka on Tuesday, the ASDF base said.
According to the Tsuiki base, the U.S. fighter jet landed around 11 a.m.
with no injuries or fire reported as occurring. The pilot contacted the base
's air traffic controller shortly before touching down to report the
aircraft would be making an emergency landing.
The fighter jet was likely heading for U.S. Mar... 阅读全帖
m**********e
发帖数: 12525
s*x
发帖数: 8041
44
来自主题: Military版 - 经过2017年一整年的验收过程后
http://www.businessinsider.com/the-navys-new-urinal-free-supercarrier-is-facing-a-ton-of-problems-2018-2
经过2017年一整年的验收过程后,五角大楼递交给国防部长马蒂斯的报告这样评价福特
号航母:----“极差、乃至于不可预知的可靠性” 。【poor or unknown reliability】
被评价为“几乎不可信任”的关键系统包括:电磁弹射、电磁拦阻、武器升降机、雷达
。【"poor or unknown reliability" among many of the Ford's essential systems
, including newly designed catapults, arresting gear, weapons elevators, and
radar.】
报告说,Fa-18F战机在弹射过程中,其承力框架经受了“过度的冲击力”【"excessive
airframe stress" on launches】。
这说明电磁弹射系统,并没有像设计中那样能调... 阅读全帖
p*********e
发帖数: 32207
45
来自主题: Military2版 - 看了J7传
"
The true top speed of the F-22 is unknown to the general public. The ability
of the airframe to withstand the stress and heat is a further key factor,
especially in an aircraft using as many polymers as the F-22.
"
http://en.wikipedia.org/wiki/Lockheed_Martin_F-22_Raptor
不知道你这个F22最大平飞速率的出处是哪?

重量
最大
G*******1
发帖数: 6411
46
来自主题: Military2版 - 印度人还是很镇定的
摘了一段

Surely some pics of an airplane don't prove anything one way or other - or
am I missing something here?
We know for sure that Chinese (despite all their noteworthy accomplishments
in recent years) have been
struggling to come up with a successful engine for a much more basic plane (
a core - and one of the most
challenging along with avionics - requirement to be truly considered an
indigenous airplane
manufacturer), they are struggling to convince even an isolated country -
and their clos... 阅读全帖
c***n
发帖数: 2232
47
【 以下文字转载自 Military 讨论区 】
发信人: Regina (猫宝宝), 信区: Military
标 题: 空中力量澳大利亚 文章: 中国新型J20隐形战机对F35和F/A-18意味着什么.
发信站: BBS 未名空间站 (Fri Dec 31 18:54:16 2010, 美东)
空中力量澳大利亚 文章: 中国新型J20隐形战机对F35和F/A-18意味着什么.
来源: googleit 于 2010-12-31 15:09:43 [档案] [博客] 旧帖] [转至博客] [给我悄
悄话] 本文已被阅读:186次 字体:调大/调小/重置 | 加入书签 | 打印 | 所有跟帖
| 加跟贴 | 查看当前最热讨论主题 摘要:
F35基于错误的理论"飞机的机动性无关紧要,让导弹做转圈的活. "
* 第一, 假定F35能撑到可发射导弹的位置, 但是J20和T50拥有低可探测性, 又非得多
快得多, 因而使他们的下视下射导弹拥有先发制人的优势;
* 第二, 更危险的是, J20和T50有超强的应对来袭导弹的措施(包括超机动, 隐形等,超
高速,及电子对抗措施, 让F35会转圈的... 阅读全帖
q****i
发帖数: 1395
48
来自主题: Military2版 - J-20 Aircraft:News and Discussion
By Dragon Emperor
For those of you who say that the big size of the J-20 makes it less
manoeverable than the F-22, i say that 5th gen fighters are not supposed to
be dogfighters, so manoevrability is not an issue because BVRAAMs will
decide the fight in future wars as well as AESA radars. I have provided a
link to a site that will give more insight, perhaps.
http://www.ausairpower.net/APA-NOTAM-311210-1.html
The latest monograph by Dr Kopp, as published in the peer reviewed APA
Analyses journal,... 阅读全帖
p*********e
发帖数: 32207
49
来自主题: Military2版 - F15也开始隐形了
我觉得如果要严肃的改,那工作量跟重新设计airframe的差距也不会太大了
可能就像F/A-18C/D到E/F一样,看着外形相似,基本是个全新的飞机只不过挂着原来的名字
另外如果也像C/D到E/F那样发动机增推20%...
c**i
发帖数: 6973
50
来自主题: Military2版 - 写给即将上舰的J-15---胡烟乱雨堂
Well, you assert China is the best. So be it.
Perhaps it is why no Chinese even bother to commnet on it.
Your paragraph 1 is too hypocritical. Really stinks.
I will take a pity on you and say something. For those who are not familiar:
沈飞: 沈阳飞机工业集团;
T-10K: a prototype of Su-33 China stole from Russia--through Ukraine. See (2
) below.
(1) You say, "毕竟J-15还是师从SU-33,很多在SU-33使用过程当中没有出现过的问题
,很有可能在J-15身上出现,如果我们真正的吃透了T-10K或者说是SU-33的技术,那么
出现问题我们可以解决,如果我们没有吃透技术,那么很有可能在未来三到五年之后,
出现J-15大面积停飞的事故。
Even if Chi... 阅读全帖
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