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全部话题 - 话题: wingspan
1 2 下页 末页 (共2页)
c***u
发帖数: 22
e*c
发帖数: 395
2
折叠翼要变成军地两用了。
http://www.bendbulletin.com/article/20121110/NEWS0107/211100323
Boeing considers folding wings on next jet
By Dominic Gates / The Seattle Times
Published: November 10. 2012 4:00AM PST
SEATTLE — Boeing’s next big jet may actually spread its wings as it
prepares for takeoff.
For the immense wings planned for the 777X, engineers at Boeing Co. are
studying a design in which the wingtips fold upward to reduce the jet’s
span when it sits at the gate or rolls along a taxiway.
Passengers... 阅读全帖
p*********e
发帖数: 32207
3
来自主题: Basketball版 - 在看espnhd的chi vs atl的重播
突然发现,rose的胳膊好~长啊,手和很大,加起来效果相当震撼了
放狗搜了一下他的wingspan,在这个网页同时看到了cp3跟deron Williams的数据:
http://www.insidehoops.com/forum/showthread.php?t=106661&page=3
D. Williams:
6'2 3/4" w/shoes
6'6 1/4" wingspan
30-inch no step vert
35-inch max vert
3.25 sec. in 3/4 court sprint
C. Paul:
6'1" w/shoes
6'4 1/4" wingspan
32-inch no step vert
38-inch max vert
3.22 sec. in 3/4 court sprint
D. Rose:
6'2 1/2" w/shoes
6'8" wingspan
34.5-inch no step vert
40-inch max vert (I guarantee you it's higher)
3.05 sec. in 3/4 co
w***w
发帖数: 6301
4
来自主题: Basketball版 - 周琦@Chicago Draft Combine
http://valleyofthesuns.com/2016/05/23/zhou-qi-ridiculous-vertic
Zhou Qi’s Ridiculous Vertical
by Scott Hanna-Riggs 3 hours ago Follow @letnumberstalk
Zhou Qi is physically one of the most interesting prospects in the entire
2016 NBA Draft prospect pool.
He is physically gifted, coming in at over 7′ 1″ without shoes, and has a
7′ 7.75″ wingspan. Those are some of the best measurements in NBA Combine
history, with Rudy Gobert a notable player to beat those measurements,
coming in at 7′ 0.5″ with a... 阅读全帖
n****e
发帖数: 4990
5
来自主题: Basketball版 - 科比职业末期与乔神有相当的差距
http://www.insidehoops.com/forum/showthread.php?t=261350
Kobe Bryant:
Height: 6-4.75
Wingspan: 6-11
Standing Reach: 8-9 (1 inch shoe adjusted)
Hand Length: 9.125"
Michael Jordan:
Height: 6-4.88 (1992 U.S. Olympics at age 29)
Wingspan: 6-11.5
Standing Reach: 8-9.25 ( 3/4 inch shoe adjusted)
Hand Length: 9.75"
Hand Spread: 11.375"
Lebron James:
Height: 6-7.25 (2003 draft at age 18)
Wingspan: 7-0.25
Standing Reach: 8-9.5 (3/4 inch shoe adjusted)
Hand Length: 9"
Hand Spread: 9.25"
帮主的手确实惊人
h********1
发帖数: 415
6
来自主题: Basketball版 - 我倒觉得lbi排前三不为过
之前有人贴过的,我转一下
手一点也不小,臂展相对于LBJ来说都更好,
速度和弹速没数据,不好说
http://www.insidehoops.com/forum/showthread.php?t=261350
Kobe Bryant:
Height: 6-4.75
Wingspan: 6-11
Standing Reach: 8-9 (1 inch shoe adjusted)
Hand Length: 9.125"
Michael Jordan:
Height: 6-4.88 (1992 U.S. Olympics at age 29)
Wingspan: 6-11.5
Standing Reach: 8-9.25 ( 3/4 inch shoe adjusted)
Hand Length: 9.75"
Hand Spread: 11.375"
Lebron James:
Height: 6-7.25 (2003 draft at age 18)
Wingspan: 7-0.25
Standing Reach: 8-9.5 (3/4 inch shoe adjusted)
Hand ... 阅读全帖
w***w
发帖数: 6301
7
来自主题: Basketball版 - 周琦@Chicago Draft Combine
周琦很可能隐瞒了站立摸高。
https://valleyofthesuns.com/2016/05/23/zhou-qi-ridiculous-verti
Zhou Qi’s Ridiculous Length
entire 2016 NBA Draft prospect pool.
He is physically gifted, coming in at over 7′ 1″ without shoes, and has a
7′ 7.75″ wingspan. Those are some of the best measurements in NBA Combine
history, with Rudy Gobert a notable player to beat those measurements,
coming in at 7′ 0.5″ with a 7′ 8.5″ wingspan.
Gobert is one of the best defenders in the NBA, and at 245 pounds comes in
27 pounds heavier... 阅读全帖
l******6
发帖数: 5698
8
肯定还是C130强,但没有那么离谱
Yun-8
Crew: 5, or 3, or 2 (Y-8F600)
Capacity: ≈90 equipped troops
Payload: 20,000 kg (44,000 lb) cargo
Length: 34.02m (111ft, 8in)
Wingspan: 38.0m (124ft 8in)
Height: 11.6m (36ft 8in)
Wing area: 121.9m2 (1311.7ft2)
Empty weight: 35,490kg (77,237lb)
Loaded weight: kg (lb)
Useful load: 20,000kg (44,090lb)
Max takeoff weight: 61,000kg (134,480lb)
Powerplant: 4× Zhuzhou WoJiang-6 (WJ-6) turboprops, 3,170kW (4,250hp) each
C 130
Crew: 5 (two pilots, navigator, flight engineer and loa... 阅读全帖
c**i
发帖数: 6973
9
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
s*****V
发帖数: 21731
10

从WIKI上查一查就知道了
瞎说,SU33
Length: 21.94 m (72 ft)
Wingspan: 14.70 m (48.25 ft)
Height: 5.93 m (19.5 ft)
J20
Length: 21.26 m (69 ft 9 in)
Wingspan: 12.88 m (42 ft 3 in)
Height: 4.45 m (14 ft 7 in)
J20就比33高一点,为什么不能上舰?
p*********e
发帖数: 32207
11
这两个数字也不太对
根据wiki,
https://en.wikipedia.org/wiki/Sukhoi_Su-25
General characteristics
Crew: one
Length: 15.53 m[nb 1] (50 ft 111/2 in)
Wingspan: 14.36 m (47 ft 11/2 in)
Height: 4.80 m (15 ft 9 in)
Wing area: 33.7 m(323 ft
Empty weight: 9,800 kg (21,605 lb)
Loaded weight: 14,600 kg (32,187 lb) (normal take-off weight)
Max. takeoff weight: 17,600 kg (38,800 lb)
Powerplant: 2 Soyuz/Gavrilov R-195 turbojets, 44.18 kN (9,921 lbf) each
最大起飞重量38800lb
A-10
https://en.wikipedia.org/wiki/Fairchild_Republic... 阅读全帖
c********g
发帖数: 3968
12
来自主题: Basketball版 - 这么多人黑kb,俺都看不下去了
没那么夸张吧
新秀年体测
Wade, Dwyane 212 6' 3.75" 6' 4.75" 6' 10.75" 8' 6"
James, LeBron 245 6' 7.25" 6' 8" 7' 0.25" 8' 10.25"
科比的不算可靠的数据
Kobe Bryant 1996
Height w/o shoes: 6'5"
Height w/ shoes: 6'6"
Weight: 199
Wingspan: 6'11"
Standing Reach: 8'10"
Highest Touch: 12'0"
Vertical Jump: 38 inches
卡特的
Vince Carter 1998
Height w/o shoes: 6'5.5"
Height w/ shoes: 6'6.75"
Weight: 219
Wingspan: 7'0"
Standing Reach: 8'11"
Highest Touch: 12'6"
Vertical Jump: 43 inches
老乔的
Michael Jordan
f**********n
发帖数: 10757
13
防守这个wingspan真的太重要了,pippen当年wingspan也很惊人。
w***w
发帖数: 6301
14
来自主题: Basketball版 - 周琦@Chicago Draft Combine
Porzingis体测数据:
Kristaps Porzingis measurements :
7'1.25" w/out shoes, 7'6 wingspan, 230 lbs. Longest wingspan in the draft.
http://www.nbadraft.net/forum/kristaps-porzingis-measurements
m*******r
发帖数: 168
15
来自主题: Dance版 - When Elena was with Sergey Ryupin
Just my thoughts.
1. Size does matter. I don't think height matters as much. But the Elena's
wingspan and weight force Slavik to work harder on her. Slavik's frame is
small (comparing to Sergey's) for her super long wingspan, thus limits her
movements. Elena's weight thus momentum gives Slavik big problems. Around 1:
39 of the Rumba video, Slavik is pulled forward by Elena when he tries to
turn her. Moreover, starting from 3:50 of the Rumba video, Slavik almost
loses balance after such an easy l
a***e
发帖数: 2094
16
来自主题: Dance版 - When Elena was with Sergey Ryupin

1. Size does matter. I don't think height matters as much. But the Elena's
wingspan and weight force Slavik to work harder on her. Slavik's frame is
small (comparing to Sergey's) for her super long wingspan, thus limits her
movements. Elena's weight thus momentum gives Slavik big problems. Around 1:
39 of the Rumba video, Slavik is pulled forward by Elena when he tries to
turn her. Moreover, starting from 3:50 of the Rumba video, Slavik almost
loses balance after such an easy lift. That might h
H********g
发帖数: 43926
17
Despite the fact that Troodon found the original pic, it is easily debunked
by comparing known measurements of a B-52 and the USS Nimitz [CVN 68]. The B
-52 is placed right on the beam of the Nimitz and spans the entire flight
deck. The wingspan of a B-52 is 185 ft. The beam of the Nimitz is 252 ft. If
done to actual scale, the B-52's wingspan would only cover about 75% of the
width of the deck.
H********g
发帖数: 43926
18
For comparison here is some data on the largest plane ever to actually take
off and land on an Aircraft Carrier.
In November 1963 as part of a test study as to the feasibility of large
scale Carrier On Board Delivery using large cargo planes, a C-130 cargo
plane made a series of test landing and take offs onboard the USS Forrestal.
The USS Forrestal is only slightly smaller then the USS Nimitz shown in the
photo (238 foot maximum beam vice 252 feet). As comparison a B-52 has a
wingspan of 185 fe... 阅读全帖
f**d
发帖数: 768
19
来自主题: Neuroscience版 - eBook: From computer to brain
这是一本计算神经科学的优秀著作,全文拷贝这里(图和公式缺),有兴趣的同学可以
阅读
如需要,我可以分享PDF文件(--仅供个人学习,无商业用途)
From Computer to Brain
William W. Lytton
From Computer to Brain
Foundations of Computational Neuroscience
Springer
William W. Lytton, M.D.
Associate Professor, State University of New York, Downstato, Brooklyn, NY
Visiting Associate Professor, University of Wisconsin, Madison
Visiting Associate Professor, Polytechnic University, Brooklyn, NY
Staff Neurologist., Kings County Hospital, Brooklyn, NY
In From Computer to Brain: ... 阅读全帖
y****i
发帖数: 1050
20
On Midway Island, the USAAF stationed four squadrons of B-17 Flying
Fortresses, along with several B-26 Marauders.
http://en.wikipedia.org/wiki/Battle_of_Midway
http://en.wikipedia.org/wiki/B-17_Flying_Fortress
A squadron in air force, army aviation or naval aviation is mainly a unit
comprising a number of military aircraft, usually of the same type,
typically with 12 to 24 aircraft, sometimes divided into three or four
flights, depending on aircraft type and air force. In most air forces, two
o... 阅读全帖
R****a
发帖数: 6858
21
来自主题: Military版 - 帝国的陨落
帝国的陨落
来源: ognc 于 2010-12-12 05:58:18 [档案] [博客] 旧帖] [转至博客] [给我悄悄话
] 本文已被阅读:254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 0
The Decline and Fall of the American Empire
By Alfred W. McCoy
December 11, 2010 "The Nation" - - A soft landing for America 40 years from
now? Don’t bet on it. The demise of the United States as the global
superpower could come far more quickly than anyone imagines. If Washington
is dreaming of 2040 or 2050 as the end of the American Century, a more
realistic asses... 阅读全帖
g**1
发帖数: 10330
22
http://goo.gl/4Co7F
New generation of unmanned spy planes is being tested
Three drones being flown in the coming weeks are speedier, stealthier
and higher-flying.
By W.J. Hennigan, Los Angeles Times
An experimental spy plane with a wingspan almost the size of a Boeing
747's took to the skies over the Mojave Desert last week in a secret
test flight that may herald a new era in modern warfare with robotic
planes flying higher, faster and with more firepower.
The massive Global Observer built by Ae... 阅读全帖
t******t
发帖数: 15246
23
来自主题: Military版 - 高达二号机要上天了
http://lt.cjdby.net/thread-1081438-1-1.html
去年的X-37B OTV-1(OTV=Orbital Test Vehicle)测试圆满完成后,美国空军计划在
今年发射X- 37B的二号机OTV-2。在2月21日,OTV-2抵达位于卡纳维拉尔角的垂直组装
中心,在那里组装到Atlas V (501配置)火箭顶端后,将完成一系列测试。预计火箭
将在发射前一天roll out。发射日期是3月4日,地点为卡纳维拉尔角的41号发射中心(
SLC-41)。
General Characteristics
Primary Mission: Experimental test vehicle
Prime Contractor: Boeing
Height: 9 feet, 6 inches (2.9 meters)
Length: 29 feet, 3 inches (8.9 meters)
Wingspan: 14 feet, 11 inches (4.5 meters)
Launch Weight: 11,000 pounds (4,990 kilogra... 阅读全帖
H****g
发帖数: 14447
24
初教六算是Yak18的改进版。
初教六数据
翼展:10.18 米
机长:8.46 米
机高:(停机状态)2.94米 (飞机呈水平状态)3.25米
翼面积:17.0 平方米
主轮距:2.87米
前主轮距:2.284米
起飞重量:1419千克
空重:1172千克
机内载油量:110千克
最大平飞速度(海平面):286千米/小时
最大允许俯冲速度:350千米/小时
巡航速度:170千米/小时,高度1000米
最大爬升率:6.3米/秒,海平面
爬升时间:0到3000米高度16分
升限:5,080 米
续航时间:3.6小时
航程: 640千米
起飞滑跑距离:280米,水泥跑道
着陆滑跑距离:350米,水泥跑道
Yak 18 General characteristics
Length: 8.35 m (27 ft 5 in)
Wingspan: 10.60 m (34 ft 9 in)
Height: 3.35 m (11 ft 0 in)
Wing area: 17.8 m2 (191 ft2)
Empty weight: 1,025 kg (2,255 lb)
Loaded weight: ... 阅读全帖
m**d
发帖数: 21441
25
来自主题: Military版 - 操, 薄派哀鸿遍野啊, 太惨了
在与博派联手放逐了五面怪之后,因为民品与军品的不同政见,
狂派成员设定(部分)
狂派成员设定(部分)(20张)
使得赛伯坦陷入长期内战。狂派都是天生的战士,他们的目标只有一个:征服一切。在
该动画片一开始,他们曾取得了全面的胜利,汽车人被迫逃离赛伯坦。结果在宇宙中和
汽车人发生激战,双双坠毁在地球之上。
大约四百万年之后,火山爆发,震动了方舟的显像一号,显像一号把双派机器人给
复苏过来。而留守在赛伯坦的霸天虎战士震荡波,也克服了大停顿和能量危机等等困难
,与远在地球的战友们取得了联系。霸天虎与汽车人的战争,翻开了全新的一页。
威震天简介
霸天虎的第一代首领是威震天,一个失意却百折不挠的军队首领。
威震天在与汽车人首领擎天柱的生死一战中身受重伤,后被宇宙大帝改造为惊破天
,成为第二代霸天虎的首领。
狂派是博派在赛伯坦上的长期仁慈统治的黑暗对立面。具有钢铁意志的威震天(以
前是个矿工)利用一种自古就有,长期孕育的敌意来建立狂派的军队,并且借用了对博
派的不满情绪,从而导演了赛伯坦上长达百万年之久的内战。在威震天的促进之下,绝
大多数狂派战士都具备了在机器人模式下自主飞行的能力。
狂派成员列... 阅读全帖
d**********i
发帖数: 4877
26
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
C***J
发帖数: 7594
27
Navy completes 1st unmanned carrier landing
Associated Press
BROCK VERGAKIS 2 hours ago MilitaryPoliticsUnmanned aerial vehicleAircraft
carrier
A X47-B Navy Drone is launched from the deck of the nuclear aircraft carrier
USS George H. W. Bush off the Coast of Virginia Wednesday, July 10, 2013.
It is the first landing by a drone on a Navy carrier. The landing of the X-
47B experimental aircraft means the Navy can move forward with its plans to
develop another unmanned aircraft that will join the... 阅读全帖
s*******t
发帖数: 3895
28
我也觉得24*24是大了点,但是这里面的表述实际上是存在问题的。
发现的物体,并不是一个正方形,甚至不是一个规则的形状,那么如何在描述一个物体
的大小?24和24应该是该不规则形状物体的最长处和最宽处的尺寸,而并不是说这个物
体的面积有576平方米。
就比如按照cnn的报道:
The objects aren't small: 13 by 18 meters (43 by 59 feet), 14 by 19 meters (
46 by 62 feet) and 24 by 22 meters (79 feet by 72 feet). For reference, the
wingspan of an intact Boeing 777-200ER like the one that disappeared is
about 61 meters (200 feet), and the plane's overall length is about 64
meters (210 feet).
假设这架飞机完整无缺的躺在海上被卫星看到,那么该如何描述该物体的尺寸?61*64
。但是飞机... 阅读全帖

发帖数: 1
29
关键就是白天太阳能继续的能量能够足够飞一晚上。。。
Aquila
Weight -- Aquila has a wingspan wider than a Boeing 737, but has to weigh as
little as possible to stay up for as long as possible. That's why the body
of the plane is made of a carbon fiber composite so the whole thing weighs
less than 1,000 pounds -- or about the same as a grand piano. We need to
continue to make it lighter.
Power -- The amount of energy Aquila collects from the sun during the day
has to be enough to keep its propellers, communications payload,... 阅读全帖

发帖数: 1
30
来自主题: Military版 - 心神先进技术验证机
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)

发帖数: 1
31
无人轨道飞行器X-37B
Data from USAF, Boeing, Air & Space Magazine,and PhysOrg.
General characteristics
Crew: none
Length: 29 ft 3 in (8.92 m)
Wingspan: 14 ft 11 in (4.55 m)
Height: 9 ft 6 in (2.90 m)
Max takeoff weight: 11,000 lb (4,990 kg)
Electrical power: Gallium arsenide solar cells with lithium-ion batteries
Payload bay: 7 × 4 ft (2.1 × 1.2 m)
Performance
Orbital speed: 28,044 km/h (17,426 mph)
Orbit: Low Earth orbit
Orbital time: 270 days (design)
f****t
发帖数: 15913
32
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

发帖数: 1
33
来自主题: Military版 - Predator长得一模一样
Similar in shape to the MQ-9 Reaper (Predator B), the Wing Loong/Pterodactyl
drone is 9.05 m long, 2.77 m high and has a 14 meter (46 feet) wingspan.
w********2
发帖数: 632
34
The original wing was present on the 1st through 170th F-86F-25 models, and
the 1st through the 199th F-86F-30 models. Planes produced after this came
with factory installed "6-3" wings, North American also sent out upgrade
kits to add the "6-3" wing to around half of the unmodified F-86F's
The original wing limited top speed to 688 mph (1107 km/hr), had a
higher drag coefficient than the "6-3" wing, but also had the stall speed 20
mph (32 kph) lower than the "6-3" wing
The "6-3" wing was de... 阅读全帖
w********2
发帖数: 632
35
来自主题: Military版 - 1910年的武汉有多牛
China's first combat aircraft manufactured by Capital Aeronautics Machinery
Company
2016-03-07
In the history of aviation, China has always been in the forefront of the
world's aircraft development.
During the early years of World War I in 1914, the first planes to be
mounted with weapons, started to emerge on European battlefields as the
predecessors of fighter aircrafts.
Soon, Nanyuan Aviation Repair Factory (南苑航空修理厂), the predecessor of
Capital Aeronautics Machinery Company (首都航天机械公司), starte... 阅读全帖
v**e
发帖数: 8422
36
老外的CAC内线透露的丝带参数!
作者:keypsz 发表日期:2010-12-28
http://www.defence.pk/forums/china-defence/86222-j-20-aircraft-mixed-concept-american-f-22-russian-su-47-a-12.html
Specifications of J-20 Aircraft
Note some specifications are estimated.
Data from a Chinese friend works for CAC.
General characteristics
Crew: 1 (pilot)
Length: 67 ft 5 in (20.60 m)
Wingspan: 43 ft 7 in (13.30 m)
Height: 13 ft 11 in (4.30 m)
Wing area: 900 ft2 (88 m2)
Empty weight: 29,000 lb (14,970 kg)
Loaded weight: 51,320 lb (23,327 kg)... 阅读全帖
G*******1
发帖数: 6411
37
来自主题: Military2版 - 雷达和导弹如何啊?
aim120c range 65miles (>105km)
=================================================================
AIM-120A/B AIM-120C-5
Length 3.66 m (12 ft)
Wingspan 53.3 cm (21 in) 44.7 cm (17.6 in)
Finspan 63.5 cm (25 in) 44.7 cm (17.6 in)
Diameter 17.8 cm (7 in)
Weight 157 kg (345 lb)
Speed Mach 4
Range 50-70 km (30-45 miles) > 105 km (65 miles)
Propulsion Hercules/Aerojet solid-fueled rocket
Warhead 23 kg (50 lb) WDU-33/B blast-fragmentation 18 kg (40 lb) WDU-
... 阅读全帖
v**e
发帖数: 8422
38
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
w********r
发帖数: 14958
39
我就爱刨根问底。
人家全球鹰的数据也是06年6月RQ-4A“老掉牙”的数据。 当时生产代号叫block10. 最新全球鹰的生产批号是block30。 而且从block20开始,主要改进就是飞机的任务载荷(不算燃油)上升到3000pound(约1.35顿)
这里提的航程有点区别。 usaf给的数据是9500nm 约等于17594km(A型),16112km(B型)
诺思罗普格鲁曼自己给的数据ferry range是22780km(B型)
http://www.as.northropgrumman.com/products/ghrq4b/assets/GH_Bro
General Characteristics
Primary function: High-altitude, long-endurance ISR
Contractor: Northrop Grumman (Prime), Raytheon, L3 Comm
Power Plant: Rolls Royce-North American AE 3007H turbofan
Thrust: 7,600 pounds
W... 阅读全帖
v**e
发帖数: 8422
40
来自主题: Military2版 - China's First Master Designer
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
b*******y
发帖数: 4304
41
来自主题: Military2版 - 有人知道stratolaunch 么?
Burt Rutan, Elon Mush and Paul Allen are setting to build a new air
launching system for space business.
It will use a HUGE plane to launch huge rockets in air
The plane will have a wingspan of 390 feet, 130 feet longer than A-380, a
crazy idea
b*****2
发帖数: 11103
42
来自主题: Military2版 - 沈克希德威武啊zz
Bill Sweetman :China's New Stealth Fighter. Not a repeat from December 2010.
砖家:土鳖的新隐形机——不是2010年11月的火星帖。
The US defense secretary is on his way to Beijing. Time to unveil a new
stealth fighter...
米防长正在去帝都的路上,适逢为新隐形机揭幕的时刻....
Short take-off and vertical landing has been one of the two driving
requirements behind the Joint Strike Fighter design, the other being stealth.
追求短距及垂直起降能力(STOVL)是JSF的两个驱动因素之一,之二便是隐形能力。
STOVL dictated the single engine, and the STOVL solution chosen for the F-35
demands a ... 阅读全帖
i*****s
发帖数: 15215
43
来自主题: Military2版 - 世界上最大的飞机安-225
An-225 “Mriya” made in Ukraine is the biggest plane in the world. And
there is only one plane like this. You are about to see how “Mriya” flies
over the airfield Antonov in Gostomel together with an aerobatic display
team “Rus” and read some facts about the plane.
The Antonov An-225 Mriya is a strategic airlift cargo aircraft designed by
the Antonov Design Bureau in the 1980s. It is the worlds heaviest aircraft.
The design, built in order to transport the Buran orbiter, was an
enlargement of the... 阅读全帖
p*********e
发帖数: 32207
44
http://en.wikipedia.org/wiki/Kawasaki_P-1
General characteristics
Crew: Flight: 2 Mission: 11
Length: 38.0 m (124 ft 8 in)
Wingspan: 35.4 m (114 ft 8 in)
Height: 12.1 m (39 ft 4 in)
Max. takeoff weight: 79,700 kg (176,000 lb)
Powerplant: 4 × IHI Corporation XF7-10 turbofan, 13,500 lbs (60 kN) each
每个60kN,高旁通比涡扇
到底因为啥要搞四发而不是用更大推力的双发就不清楚了
不过看照片,这个飞机现有的发动机外径已经不小了,而机体又不算大
而为了经济性又要比较高的旁通比,
那么如果用推力更大的双发方案或许发动机尺寸就超标了?
或者就是日本人技术实力有限,搞不定符合双发方案需求的涡扇.
顺便,四发的话系统整体可靠性倒是会好点儿,一个发动机停车影响更小.
p*********e
发帖数: 32207
45
"
General characteristics
Crew: 1
Length: 53 ft 4 in (16.26 m)
Wingspan: 57 ft 6 in (17.53 m)
Height: 14 ft 8 in (4.47 m)
Wing area: 506 ft2 (47.0 m2)
Airfoil: NACA 6716 root, NACA 6713 tip
Empty weight: 24,959 lb (11,321 kg)
Loaded weight: 30,384 lb (13,782 kg)
CAS mission: 47,094 lb (21,361 kg)
Anti-armor mission: 42,071 lb (19,083 kg)
Max. takeoff weight: 50,000 lb (23,000 kg)
Powerplant: 2 × General Electric TF34-GE-100A turbofans, 9,065 lbf (40.32
kN) each
Internal fuel capacity: 11,000 lb ... 阅读全帖
c*******x
发帖数: 53
46
最近要清理东西,准备搬家,才发现家里竟然囤了那么多东西,我们都忘了买过什么啦
。实在太多了,在这里转一部分。欢迎大家来家里选购,没有办法都上的。
1 First Act discovery fun in a drum 乐器组合,全新,$16
includes marching drum,two drumsticks,harmonica,ocarina,tambourine,strap and
hook,drum key
2 Transformers beast fire predaking, new,ages 5+,$30
Huge 21-inch wingspan and light -up fire breath
3 Robbi App learning toy,new,ages3+,$25
works with all iPhone and iPod touch devices
4 Magnetic game and message board,new,ages 13+,$12
Hang it up wherever you live,work or play,quick pla... 阅读全帖
h*******y
发帖数: 1220
47
七八十米?这个蛋放的。。。我见过B2, wingspan ~ 50 米
m*****y
发帖数: 3981
48
来自主题: Stock版 - 弄了个GOOG的option组合玩玩
a butterfly with long wingspan
v****e
发帖数: 19471
49
来自主题: Stock版 - 有无风险小一年10%的方法
Iron condor with wide wingspan e.g. a delta cap of ~5%. In this strategy, as
long as you are disciplined and do not get greedy to chase those seemingly
sustainable 3%, 4% or even higher monthly returns.
h***s
发帖数: 588
50
来自主题: Chicago版 - 办公室窗口停了一只鸟
dude, you gotta see its wingspan
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