All the News, All the Time, All About J-20

choi

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(1) 歼-20拉开美中军事竞赛帷幕？ VOA Chinese, Jan 14, 2011.
http://www.voanews.com/chinese/news/20110114-Challenges-Posed-by-J-20-113673394.html

Quote:

(a) 美国权威武器问题专家、莱克星顿研究所(Lexington Institute)的劳伦.汤普森博士(Dr. Loren Thompson)说：

“我不知道中国军方是否想到了这一点，那就是，盖茨访华期间歼-20的试飞无意之中很可能给美国的军工企业助了一臂之力。

“美国人通常对中国事务不是特别留心，但是国防部长盖茨访华期间，有关中国的新闻，大家都很留心。而这期间，中国试飞了众人之前都认为10年之内不可能研发出的战机，立即吸引了所有人的注意力。

"这一回，中方彻底做到了美国国内没有人能做到的，那就是，让国会重新考虑是否应当继续生产F-22战机。

(b) 汤普森说，美方最终是否决定生产更多的F-22，目前还不好说，但是，假如决定继续生产F-22的话，那么，F-22的主要厂家、洛克希德-马丁公司(Lockheed Martin)一定得感谢中方

Note: Founded in 1975 and named after Lexington, Massachusetts
http://en.wikipedia.org/wiki/Lexington,_Massachusetts
(This town is famous for being the site of the first shot of the American Revolution, in the Battle of Lexington on April 19, 1775)
, Lexington Institute is a think tank based in Arlington, Virginia.
http://www.lexingtoninstitute.org/


(2) David A. Fulghum, Bill Sweetman, Bradley Perrett, and Robert Wall, Stealthy Chinese J-20 Vulnerable. Aviation Week, Jan 14, 2011.
http://www.aviationweek.com/aw/generic/story.jsp?id=news/awst/2011/01/17/AW_01_17_2011_p20-281824.xml&headline=Stealthy%20Chinese%20J-20%20Vulnerable&channel=awst

My comment:
(a) This article discusses L and X bands, both of which belong in

microwave
http://en.wikipedia.org/wiki/Microwave
(Microwaves are electromagnetic waves with wavelengths ranging from as long as one meter to as short as one millimeter, or equivalently, with frequencies between 300 MHz (0.3 GHz) and 300 GHz; section 3 Microwave frequency bands)
(i) mega: 10 to the 6
giga: 10 to the 9
(ii) How did the names L and X bands come about?

Frequency letter bands. Microwave101.com, Updated Apr 25, 2008.
http://www.microwaves101.com/encyclopedia/letterbands.cfm

(b) Boeing 737 AEW&C
http://en.wikipedia.org/wiki/Boeing_737_AEW%26C
(It was designed for the Royal Australian Air Force (RAAF) under "Project Wedgetail"; Introduced 2009)

(i) wedge-tailed Eagle
http://en.wikipedia.org/wiki/Wedge-tailed_Eagle
(largest bird of prey in Australia; an unmistakable wedge-shaped tail)

(c) The report states F-35 and F-22 "have a single 'chine line”' uniting the forebody, upper inlet lips, and wing and canard edges with a curved surface above that line and flat, canted body surfaces below it."

(i)
* chine (n: of Germanic origin):
"1: BACKBONE, SPINE
2: the intersection of the bottom and the sides of a flat or V-bottomed boat"

Both definitions are from www.m-w.com.

* See the illustration in

Chines: Defining the angle where the bottom meets the sides. McGraw-Hill Boating Encyclopedia, undated.
http://www.answers.com/topic/chines

(ii) "The F-22's stealth design evolved from that of the F-117, with a preponderance of flat, canted surfaces and a sharp cline line from the nose to the wingtips."
Bill Sweetman, F-22 Raptor (Enthusiast Color Series). Osceola, WI: MBI Publishing Co. (1998), page 34 (figures at pp. 34 and 35).
http://books.google.com/books?id=0bEeCnIpPZcC&pg=PA34&lpg=PA34&dq=%22chine+line%22+f-22&source=bl&ots=2-sGeCc-6v&sig=GNvuG0ogF7-jybaSmTJFQ39M6-0&hl=en&ei=jNYxTbySHdLOgAfI4I3LCw&sa=X&oi=book_result&ct=result&resnum=4&ved=0CCUQ6AEwAw#v=onepage&q=%22chine%20line%22%20f-22&f=false

(iii) cant (vt):
"1: to give a cant or oblique edge to : BEVEL
2: to set at an angle : TILT"


(3) Editorial: Remain Watchful of China's Ascent. Aviation Week, Jan 14, 2011.
http://www.aviationweek.com/aw/generic/story.jsp?id=news/awst/2011/01/10/AW_01_10_2011_p58-280833.xml&headline=Editorial: Remain Watchful of China's Ascent&channel=defense


(4)  At Keio University in Tokyo, on Jan 14 defense secretary Robert Gates gave a talk and held a Q & A session. He still thought Pres. Hu had not known of the first flight test of J-20, which Mr Gates ascribed to disconnect between military and civilians of China. Mr Gates said he did not doubt Pres. Hu was in control. The pertinent portion of the transcript is as follows.


Transcript: Remarks by Secretary Gates at Keio University, Tokyo, Japan. US Department of Defense, Jan 14, 2011.
http://www.defense.gov/transcripts/transcript.aspx?transcriptid=4755


Quote:

               "Q:  Thank you for today's opportunity.  My name is Katsuya Nagano from the Faculty of Law.  Since you mentioned about outlining common interests and sustaining and constructing the relationship with China, I would like to ask you how you are looking at the current situation of China's civilian control over its army.  And I ask this question because if truly the civilian leaders, including President Hu, had no prior intel on the test flights of the stealth fighters, then doesn't that represent the opaqueness and the prominence of China's military, even within its own country, as it is to the world?  Would you remind sharing your perspective?

                "SEC. GATES:  This is an area where over the last several years we have seen some signs of -- I guess I would call it a disconnect between the military and the civilian leadership.  We think that the civilian leadership was not aware of the aggressive approach by Chinese ships to the U.S.'s Navy ship Impeccable two or three years ago.  We think that -- our information is that the civilian leadership may not have known about the anti-satellite test that was conducted about three years ago.  And as I indicated yesterday, there were pretty clear indications that they were unaware of the flight test of the F-35 -- of the J-20, rather.

                "I think that part of this, based on my experience, very long experience in government, is -- can be explained by bureaucratic mistakes.  There have been more than a few occasions when the United States military was conducting an exercise or carrying out an activity, and not sensitive to the fact that a foreign visitor might be in Washington at the same time.  But on the whole, I do think that this is something that is a worry.

                "And one of the reasons why I have pressed so hard for there to be a deeper, senior-level civilian-military dialogue with both civilian and military representatives from both sides, from both countries is that we have no forum right now on security issues or military issues that includes senior civilians and military.  And I think that, one of the questions I was asked by the Chinese is, how do you differentiate this from all of the other mechanisms for dialogue in the military-to-military arena?  And my argument back was this would be -- this is -- this would be the only one where senior civilians and military are sitting together.  And I think that has great benefit.

                "And I think that -- you know, I don't -- I don't question the party's control of the PLA military or of the PLA.  I have no doubts about the fact that President Hu Jintao is in command and in charge.  But I just know from our own system at times there are disconnects between military information flowing to our civilian leaders.  Frankly, this has been one of the benefits over the decades for the United States of the National Security Council and the National Security Council staff, where the civilian and military sides of the government are brought together routinely and where information about military operations is shared in detail not just with the White House, but also with the State Department.  So we are tied closely together.

                "So I think there are opportunities in this dialogue to advance that kind of civilian-military cooperation.  And I think it would also enhance military-to-military relationships.



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