h*d
发帖数: 19309 | 1 Air Force feels afterburned as Sony clips the PS3's Linux wings
By Tim Stevens posted May 13th 2010 9:41AM
Air Force feels afterburned as Sony clips the PS3's Linux wings
When we learned that the Air Force was buying 300 PS3s we knew it could mean
only one thing: all-night HAWX LAN party. But, when the order came through
for 2,200 more, it seemed something more serious was afoot, and sure enough
the armed force that aims higher was aiming to use them as a cluster for
high-def video processing. N |
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i********y
发帖数: 153 | 2 3天p90x下来，浑身痛，这个算不算afterburn 呀？
★ 发自iPhone App: ChineseWeb 7.8 |
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y*r
发帖数: 590 | 3 500w的电源，i7，8G ram, GTX 560ti, 玩battlefield3经常死机或者需要force quit
游戏。感觉会不会是画面太复杂时显卡电压跟不上。
用afterburner降低电压能有效果吗？能玩下这个游戏不死机就行.... |
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发帖数: 1 | 4 VTOL项目总师Kevin Renshaw； F35垂直起降技术（3BSD）来源于通用的Model 200，与
雅克141无关
F-35B Lightning II Three-Bearing Swivel Nozzle
By Kevin Renshaw Posted 12 August 2014
The Convair Model 200 was proposed in June 1972 to respond to the US Navy
request for designs for a fighter/attack aircraft for the sea control ships.
The VTOL aircraft would have used a PW401 engine with an afterburning 3BSD
plus twin Allison XJ99 lift engines located behind the cockpit for added
vertical lift forward of the center of gravity to b... 阅读全帖 |
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c**i
发帖数: 6973 | 5 BBC Chinese, Jan 11, 2011 (格林尼治标准时间12:47).
http://www.bbc.co.uk/zhongwen/
simp/china/2011/01/110111_j20_pingkefu.shtml
My comment:
(a) The report quotes 平可夫 as saying, "目前试飞的J20战机只是中国标准的第四
代战机，并不是国际标准的第四代战机和俄罗斯代号的第五代战机."
China seems to have a different term. But in US, it is called
Fifth generation jet fighter
http://en.wikipedia.org/wiki/Fifth_generation_jet_fighter
(b) He then says, "最重要的是，第四代战机发动机的推力至少要达到1.7吨."
Bill Sweetman stated in Aviation Week on Jan 3 2011 (cover date) that J-20
were bi... 阅读全帖 |
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q*n
发帖数: 1203 | 6 发现一个关于cardio导致afterburner effect的数据：
Lets look at a great example, ME! If I did no cardio, my daily energy need
would be 2600 calories. The below chart shows how much afterburner effect I
get for a given daily amount of cardio:
Minutes Cardio Cardio Burns Afterburner Effect Burns Total Cals
Burned Pounds Fat Lost
none 0 cals/day 0 cals/day 2600cals/day 0.0lbs/wk
20min/day 230cals/day 70cals/day 2800cals/day 0.6lbs/wk
35min/day 400cals/day 360cals/day ... 阅读全帖 |
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k*****a
发帖数: 823 | 7 有啊，supercruise又不是非得不用afterburner的，mig-25就可以到M3，只不过耗油太
猛撑不了多少时间，发动机也会过热。真正不用afterburner就能supercruise的只有f-
22，外加
eurofighter勉强能算，用afterburner过音速再关掉afterburner supercruise。 |
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v**e
发帖数: 8422 | 8 China's First Master Designer
July 5, 2011: After years of trying to keep it a secret, China has confirmed
that one of their aircraft engineers, Yang Wei, is actually one of those
extraordinary designers who produces one successful design after another.
Born in 1963, he graduated from college at age 19 and finished graduate
school three years later. He soon went to work at the Chengdu Aircraft
Design Institute, and a decade later was appointed director. So far, he has
designed a working fly-by-w... 阅读全帖 |
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h******k
发帖数: 13418 | 9 这个取决于有没有afterburner.
afterburner取决于起飞重量和起飞距离。
没有看现场，但是试飞重量应该不大，距离就不知道了。
专家有的时候还真能YY！ |
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x****u
发帖数: 12955 | 10
that smoke is what their "J31 requires afterburner to maintain speed"
argument was based on.
None of the videos of J31 in flight shows sign of using afterburner. |
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b***d
发帖数: 439 | 11 那个才不是afterburner，afterburner是一条较长的白天也能看得见的火舌。
这破飞机是普通加力的时候烧机油，加gasket密封不良跑气。 |
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x****u
发帖数: 12955 | 12
haha. I know you don't know what's the sign of using afterburner.
The only time in that video where J31 used afterburner was when it was
taking off. |
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发帖数: 1 | 13 发动机
Powerplant: 1 × Pratt & Whitney F135 afterburning turbofan
Dry thrust: 28,000 lbf[671][N 9] (125 kN)
Thrust with afterburner: 43,000 lbf[671][672] (191 kN)
加力推力191KN。 |
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s*x
发帖数: 8041 | 14 閒話
雞年到，今天是正月初七，立春，這個年已經過了一半，春天就要到了，部份華人已經
回到工作崗位，開始又一年辛勤的工作。
市長向市民們和網友們拜年，祝你們雞年健康、萬事如意！
以前每次過年，市長都要寫篇應景的文章，譬如談談美食和美酒、「春晚」的表演等等
，今年除了拜年，礙於自己訂的老規矩，其他都免了。
想來想去，過意不去，就寫篇長文為各位在過年期間添點熱鬧。各位幾杯下肚後，看看
市長的政論文章解解酒，也是一樂。於是打破自己的禁令，寫篇文章湊熱鬧，算是市長
的“Executive Privelege”罷，希望網友們莫要怪罪，本市規則各位還是要遵守的。
本來打算寫「回顧2016，展望2017」，想想一月已經過完了，而「一個中國」的挑戰隨
著川普的走馬上任才開始，「遼寧號」的餘威猶存，就換了上面這個題目。這篇文章長
了一點，至少要分兩部份貼出，希望能在春節期間（吃湯圓以前）完工。
閒話少敘，讓我們進入正題。
「一個中國」的風波
2016是一個多事之年，在英國脫歐洲、中東戰亂和狂人川普當選美國總統等一連串黑天
鵝事件中，台灣自然也沒有缺席，那就是台獨要角蔡英文女士以多數票當選中華民國的
總統。... 阅读全帖 |
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f****t
发帖数: 15913 | 15 F16低空最大速度是1。2马赫，和歼十一样，楼主是真SB
*********************************
Specifications (F-16C Block 50)[edit]
GENERAL DYNAMICS F-16 FIGHTING FALCON.svg
View of underside of F-16 during a vertical climb
Testing of the F-35 diverterless supersonic inlet on an F-16 testbed. The
original intake with Splitter plate is shown in the top image
Weapons Storage and Security System vault in raised position holding a B61
nuclear bomb, adjacent to an F-16. The vault is within a Protective Aircraft
Shelter.
Data from ... 阅读全帖 |
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d*****l
发帖数: 8441 | 16 First, to achieve smooth airflow with desirable
parameters at the entry to the engine’
s fan, the J-20’s designers have to
make the air intakes rather long. This was
an important consideration at design stage.
Second, they also needed to make
the air channel S-shaped, so as to hide
the fan blades from the radio waves emitted
by enemy radars. The latter is needed
for a lower visibility of the airplane. It
is worth to notice that the J-20’s air intakes
resemble those first tried on the Lockheed
Ma... 阅读全帖 |
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k******a
发帖数: 2436 | 17 This seems to be the main thing for the Chengdu designers. Apparently, they
wanted to make the airplane’s equiva- lent body of rotation as narrow as
possi- ble. And they needed to make provision for internal carriage of
weapons, which is a characteristic feature for fifth gener- ation fighters.
In actual fact, the J-20 has much smoother cross section distribution
diagram than the F-22A Raptor, the F-35 Lightning II and the Sukhoi T-50 (
PAK FA or FGFA). Apparently, it required quite an ef- fort ... 阅读全帖 |
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p*********e
发帖数: 32207 | 18 根据wiki:
http://en.wikipedia.org/wiki/Sukhoi_Su-30MKI
Powerplant: 2 Lyulka AL-31FP turbofans with thrust vectoring, 123 kN with
afterburner (27,500 lbf) each
http://en.wikipedia.org/wiki/Sukhoi_Su-35
Powerplant: 2 Saturn 117S (AL-41F1S) thrust vectoring turbofan
Dry thrust: 8,800 kgf (86.3 kN, 19,400 lbf) each
Thrust with afterburner: 14,500 kgf (142 kN, 31,900 lbf) each
或者您有AL-31FP推力更大的具体数值及出处,洗耳恭听. |
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p*********e
发帖数: 32207 | 19 请再解释一下
为什么一个"高机动的空优战机"
居然空重比base的su27还高了那么多,而推力却基本没涨?
http://en.wikipedia.org/wiki/Sukhoi_Su-27
SU-27SK
Empty weight: 16,380 kg (36,100 lb)
Powerplant: 2 × Saturn/Lyulka AL-31F turbofans
Dry thrust: 7,670 kgf (75.22 kN, 16,910 lbf) each
Thrust with afterburner: 12,500 kgf (122.6 kN, 27,560 lbf) each
http://en.wikipedia.org/wiki/Sukhoi_Su-30MKI
SU-30MKI
Empty weight: 18,400 kg[86] (40,565 lb)
Powerplant: 2 × Lyulka AL-31FP turbofans with thrust vectoring, 123 kN with
afterburner (27,500 lbf) each |
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d********e
发帖数: 1468 | 20 大惊小怪，游戏玩家一般显卡没个7-80度都不好意思出来说的。
花屏的原因，很多是默认电压太低，afterburner里加个一两档就没事了。
还有，如果经常游戏，最好afterburner里采用自定义风扇控制，以转速换温度。 |
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k*****a
发帖数: 823 | 21 turbofan和turbojet engine的区别就是在于多了一个外函道和风扇，推力的一部分甚
至大部分来自于外函道风扇（外函道越大其推力越大），来自外函道的冷空气和来自内
涵道的燃烧后热空气混合，排气温度速度降低，推进效率和燃油效率更高，尤其是在亚
音速的情况下。超音速的时候turbofan由于迎风面积大（加了个外函道和风扇嘛），阻
力大，单位迎风面积推力小。所以高速的战斗机turbofan engine的外函道都比较小，
而低速的客机运输机engine的外函道都很大。没有turbofan相比turbojet无法维持长久
峰值推力这么一说，turbofan engine的核心机本身就是个turbojet engine，涡轮叶片
变软对两者都一样。军用engine的加力燃烧室是在燃烧室和涡轮后面的，所以叫做
afterburner，不会使涡轮温度过高。不能长时间用afterburner主要是因为耗油实在太
猛，部分原因是可能会过热。
F-22 raptor当年的候选engine之一YF120就是变循环发动机，亚音速工作在turbofan模
式，
超音速把外函道关闭工作在turboj |
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s**********t
发帖数: 1846 | 23 F22的供氧系统的问题早就知道，也propose了修改方案，但是因为要多花钱被否了。
KADENA AIR BASE, Japan (AP) — Years before F-22 pilots began getting dizzy
in the cockpit, before one struggled to breathe as he tried to pull out of a
fatal crash, before two more went on television to say the plane was so
unsafe they refused to fly it, a small circle of U.S. Air Force experts knew
something was wrong with the prized stealth fighter jet.
Coughing among pilots and fears that contaminants were leaking into their
breathing apparatus led t... 阅读全帖 |
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y*h
发帖数: 25423 | 25 火苗是喷气发动机的加力后燃器（afterburner）里喷燃料以后产生的，目的是
临时获得短时间的额外推力，通常在短距紧急起飞以及战斗的时候使用，时间
有限制，只能用几分钟否则发动机就烧了。这种首飞发动机够强跑道够长的话
不用开加力就能飞。 |
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c**i
发帖数: 6973 | 26 蒙克, 中国隐形战机对美有何威胁？ BBC Chinese, Jan 12, 2011.
http://www.bbc.co.uk/zhongwen/simp
/china/2011/01/110112_analysis_j20_westmedia.shtml
("《洛杉矶时报》文章指出，歼-20真正的威胁是：让美国能为进一步增加已经十分庞
大国防预算提供理由。安德鲁·考克本（Andrew Cockburn）的文章指出，就在美国军
方冷战后没有敌手，但同时又要为大量投资发展高科技武器惴惴不安的时候，突然在中
国成都出现了能够躲避雷达的、和美国f-22相仿的新型战机 [omitting several
paragraphs])
My comment: The comment refers to
Andrew Cockburn, China Stealth Jet Is No Reason to Boost U.S. Defense
Spending. The warplane could be decisively superior, some experts have said.
Bu... 阅读全帖 |
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c**i
发帖数: 6973 | 27 (1) J-20 Flies Off Into Uncertainty. Strategy Page, Jan 14, 2011.
http://www.strategypage.com
/htmw/htairfo/articles/20110114.aspx
My comment:
(a) The article states, "Of the four stealth fighters than [sic; should be '
that'] have been built and flown so far (U.S. F-22 and F-35, Russian T-50
and I.42), the J-20 looks most like the I.42, a MiG project that was
cancelled in 1997.
Presumably this is because the previous F-111 and F-117 also served as a
bomber.
(b) Regrading I.42. I search the web.... 阅读全帖 |
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c******k
发帖数: 8998 | 28 F22的供氧系统的问题早就知道，也propose了修改方案，但是因为要多花钱被否了。
KADENA AIR BASE, Japan (AP) — Years before F-22 pilots began getting dizzy
in the cockpit, before one struggled to breathe as he tried to pull out of a
fatal crash, before two more went on television to say the plane was so
unsafe they refused to fly it, a small circle of U.S. Air Force experts knew
something was wrong with the prized stealth fighter jet.
Coughing among pilots and fears that contaminants were leaking into their
breathing apparatus led t... 阅读全帖 |
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T**********e
发帖数: 29576 | 29 期待钓鱼岛的王伟。
According to Osborn and other Pentagon officials, Wang was preparing to "
thump" the EP-3E by flying in front of the slower aircraft and hitting his
jet's afterburners. The maneuver is an unfriendly gesture designed to
disrupt the flight of the target aircraft. But he didn't get the opportunity
to do any thumping because the airplanes collided. Osborn's initial
reaction to the collision was matter-of-fact. "The first thing I thought was
, 'This guy just killed us,' " |
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l*****i
发帖数: 20533 | 30 美国专家认为中国的隐身飞机就是‘见面不如闻名’
CNN-Just how good is China's new 'stealth' fighter?
http://www.cnn.com/2014/11/13/world/asia/china-stealth-fighter-
“The MiG official may be correct. An aircraft of this type designed with
Russian assistance would probably perform better.
The FC-31's flight routine shows that it "bleeds" too much energy -- so when
it enters into a turn it begins to lose altitude. Even during straight and
level flight the pilot has to engage the engine's afterburners in order to
keep the a... 阅读全帖 |
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t*c
发帖数: 6929 | 31 珠海航展的J31表演引来一片疑问，
J31装有两台俄罗斯RD93发动机。
西方军事观察员指出，当J31在空中
转向时，必须使用afterburner补燃
动力，甚至在水平直线飞行，也有
使用，其目的是维持高速状态飞机
的可控高度，而这还是J31在全清
不挂弹无负载的状态下。
这已不仅仅是发动机问题，更多的是气动
设计的重大缺陷。由此，J31并不是
中国未来的战机，或者是低成本出口机。
同时，也排除了俄罗斯参与J31设计的
可能，因为米格和苏霍伊早已掌握气动
布局的技术。也有人猜测中国的J20可能
也在重新调整某些关键，也远没有
达到定型阶段。 |
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x****u
发帖数: 12955 | 32
That so called observer is totally worthless.
Any military observer with any knowledge at all would know the engine used
in J31 is smoky on its own, not because of use of afterburner. |
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G**L
发帖数: 22804 | 33 自己看小将找的视频。不要靠告诉我你不知道神马是sign of using afterburner |
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x********u
发帖数: 1061 | 34 这个……，RD33系列发动机就这样，低功率下燃烧不完全，开了加力反而没有黑烟了，
老毛子的29低速不开加力也是黑烟滚滚哪，你想当然了
如果using afterburner，这黑烟就没了 |
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f*******g
发帖数: 1290 | 35 copy paste 也不会吗？众多定义，一定有一款适合菌斑的各位非女司机：
asian driver
asshole who gets on freeway at a lightning fast 23.2 mph causing major havoc
at on-ramp. they then instantly shoot over to fast lane with no regard for
use of mirrors or turn signals causing multiple people to lock up their
brakes, and numerous near misses as cars have to swerve to avoid them. they
then proceed to break speed records as they travel at thewhopping speed of
45 mph in the fast lane all the while with left turn signal now on
contin... 阅读全帖 |
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发帖数: 1 | 36 General characteristics
Crew: 1
Length: 14.174 m (46 ft 6 in)
Wingspan: 9.099 m (29 ft 10 in)
Height: 4.514 m (14 ft 10 in)
Empty weight: 9,700 kg (21,385 lb)
Powerplant: 2 × IHI XF5-1 low-bypass turbofans dry, 49.03 kN (11,023
lbf) with afterburner
Maximum speed: Mach 2.25, 2,475 km/h (Mach 1.82 supercruise)
Range: 2,900 km (1,802 mi; 1,566 nmi)
Combat range: 761 km (473 mi; 411 nmi)
Ferry range: 3,200 km (1,988 mi; 1,728 nmi) |
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W***n
发帖数: 11530 | 37 Rahul Patil
Answered Jul 18, 2016 · Upvoted by Muhammad Afsar Malik, 15 years ATCO, 8
years airline economics, National Aviation Policy 2015
I’m not truly qualified or experienced in the aerospace industry, so my
answer is based more on technical specs and anecdotal reports from users (
pilots, technicians). Some amount disparity also remains in application :
fighter/military engines vs commercial.
My verdict? GE.
Rolls Royce alone is nowhere near its former glory, the aero engine industry
has t... 阅读全帖 |
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p*********e
发帖数: 32207 | 38 你这个就是不可知论了
明摆着的开afterburner的F15超巡都可以到5分钟
军推下可以超巡的F22的燃油消耗要比这个少多了
recent |
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w********r
发帖数: 14958 | 40 都按wiki上loaded weight算得
如果看J10，简直惨不忍睹
Loaded weight: 14,876 kg (32,797 lb)
Thrust with afterburner: 122.5 kN[14] (27,557 lbf )
推重比才0.85 |
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A*V
发帖数: 3528 | 42 是这一篇?
http://www.cnn.com/2011/WORLD/asiapcf/01/05/china.us.fighter.je
CNN) -- Images believed to be of China's next generation of military air
power have been buzzing around the internet, but Pentagon officials are
insisting it does not mean China has matched American air capabilities.
The new Chinese stealth fighter jet, known as the J-20, isn't supposed to be
operational until at least 2017, but a Chinese air force commander told
Chinese TV in 2009 that flight testing would begin mu... 阅读全帖 |
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s*********r
发帖数: 21 | 43 did not use the after burning and took off in 500m. good thing.
鸭翼布局是对no vector thrust engine 的对策。。好像成飞还是比较注重高空高速的
，J20 的展旋比要比F22 小， 三角机翼后掠角比较大，低俗机动性还是不会比F22强的
。 |
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p*********e
发帖数: 32207 | 46 另外羊毛出在羊身上,你多了的那个小扇子还是靠低压涡轮驱动的
换句话说你的内涵道贡献会降低
最后影响总效率,还是因为流速的问题
最典型的例子,F135的垂直起降版本
开afterburner大概190kN,不开加力大概一百二三
垂直起降时驱动升力风扇,不开加力,
风扇,辅助喷口跟主喷口的推力加起来也是大概190kN
就是因为本质上相当于增大了函道比. |
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k******a
发帖数: 2436 | 47 Many aviation experts believe that the J-20 relies on a pair of Russian
engines or their Chinese copies. In other words, the J-20’s engines are
picked out among members of the big family uniting the Item
117, AL-31F, WS-14 and WS-10 Taihang. Two engines together develop in
between 30 and 40 tons of thrust. If that is so, then the capability of the
propulsion system
Aircraf t
is enough for supercruise, or supersonic cruise flight at military power (
highest pow- er setting without afterburning). ... 阅读全帖 |
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n*******4
发帖数: 2285 | 48 请问你说：“满不满油和弹射无关”的根据是什么？如果满油起飞而不能挂任何武器，
那满油也没意义。现在的估计是J-15无法在辽宁号上满油满弹最大起飞重量起飞。以J-
15的最大推力（开加力的），满油满弹最大加速不到1个g，而弹射的加速是2-3个g。就
算150米跑道，0.8g加速，外加航母开全速的30节甲板风，J-15离舰速度最大60米每秒
，216公里每小时， 不到240公里每小时的Su-33最低起飞速度。这还不算起落架摩擦和
空气阻力作用， 实际速度更低。
http://www.chinesedefence.com/forums/chinese-navy/603-chinese-n
Basic stats for Su-33/J-15
length: 21.94m
wing span:14.7m
height:5.93m
wing area:62 m^2
empty weight:18400kg
standard fuel capacity:5700kg
maximum internal fuel capacity:9300kg
maximum TOW:32800kg
take-off... 阅读全帖 |
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g**1
发帖数: 10330 | 49 MiG-21 fighter jets to fly into history
PTI | Dec 7, 2013, 08.35 PM IST
24
http://timesofindia.indiatimes.com/india/MiG-21-fighter-jets-to
IAF medical officers meetIAF to assemble 50 more Mi17 choppersIAF display at
Chabua air baseIAF competes 81 glorious years of serviceIAF chopper makes
emergency landing in Jammu
NEW DELHI/KOLKATA: One of the first variants of the MiG 21 combat aircraft,
which dealt severe blows to Pakistan Air Force in the 1971 war, will fly
into the annals of history on Wedn... 阅读全帖 |
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l****z
发帖数: 29846 | 50 by Ross Kaminsky
Bill Whittle, who does a regular online video series called Afterburner, has
a particularly strong message in a recent video, about how miraculous
Barack Obama's career has been, and how unsurprising it is that Obama
believes what he believes.
It's well worth six minutes of your time...and worth sharing with friends.
http://youtu.be/QXEoQJ7ZMZs |
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