2011年1月28日金曜日

B2情報流出 判決禁固32年

B2情報を流出した元技術者に禁固32年の判決がでた。
 米ハワイ州の連邦裁判所は、巡航ミサイルをレーダーに探知されにくく
するステルス能力に関する軍事情報を違法に中国政府に提供したとして、
元技術者ノシル・ゴワディア被告に対し禁錮32年の判決を言い渡した。

Noshir Gowadia
・当時ノースロップ社に勤務し、B-2爆撃機の推進システムを設計

・ミサイル技術を中国に漏洩した罪で禁固32年
・中国の巡航ミサイル排気ノズルの低排熱化を支援するため11万ドル受取る。
 排気ノズル低排熱化により、赤外線探知と熱追尾ミサイルの回避となった。
・控訴する予定

ステルス機と言うから、電磁波で探知されにくいと思い込んでいたが、
赤外線で探知されにくと言うことらしい。
殲20の排気ノズルは、赤外線の探知がされにくい設計のようだ。
追尾ミサイルは、赤外線から多種の追尾方式に変わりつつあるから、
脅威は低いと思うが、再配備は必要になる。

J20 F117墜落機を複製か


中国への米国のステルス機デザイナーリークが言い渡される


---中国の次世代ステルス機「殲20」に「主張する性能が本当か不明」と米報道官---
2011.1.27 14:31
http://sankei.jp.msn.com/world/news/110127/amr11012714400077-n1.htm

 米国防総省のモレル報道官は26日の記者会見で、レーダーに捕捉されにくい中国の次世代ステルス戦闘機「殲20」について「彼ら(中国側)が主張するようなステルス性が本当にあるのかも分からない」と述べて実像の不透明さを強調。試験飛行に成功したと断じるのは時期尚早だと述べた。
 また報道官は、1999年のコソボ紛争の際に撃墜された米軍ステルス攻撃機の技術を中国が盗用して殲20を開発したとの報道について、内容を裏付ける証拠はないと指摘した。(共同)


---Stealth-Espionage Claims Disputed in China---
JANUARY 26, 2011
http://online.wsj.com/article/SB10001424052748704013604576103873339685848.html

BEIJING-Chinese military experts disputed that China obtained secret U.S. technology to develop its new stealth fighter, saying the country relied on homegrown innovation to produce a plane that has drawn new international attention to its military advances.

Speculation that China obtained U.S. stealth technology has been circulating since aviation experts noted that the J-20 stealth-fighter prototype looked like a larger version of the U.S. F-22 Raptor, currently the world's only fully operational stealth fighter. The twin-engine J-20 made its first public test flight two weeks ago during a visit to China by U.S. Defense Secretary Robert Gates.

On Sunday, the Associated Press quoted Balkan military officials saying China likely learned some of its stealth technology from pieces its agents obtained of the wreckage of a U.S. F-117 shot down by a Serbian antiaircraft missile during the 1999 Kosovo war. The F-117 Nighthawk was the first U.S. stealth fighter.

Then, on on Monday, a former U.S. B-2 stealth bomber engineer, Noshir Gowadia was sentenced by a U.S. court in Hawaii to 32 years in prison for selling stealth-missile technology, with potential applications on fighter jets, to China. Mr. Gowadia's son, Ashton Gowadia, said his father plans to appeal.

The elder Mr. Gowadia moved from India to the U.S. for postgraduate work in the 1960s and became a U.S. citizen about a decade later.He helped to design the B-2 propulsion system when he worked at Northrop Corp., now known as Northrop Grumman Corp., in 1968 to 1986. He was arrested in 2005. A federal jury in Honolulu found that he pocketed about $110,000 to help China design a cruise-missile exhaust nozzle that would give off less heat, letting it evade infrared radar detection and U.S. heat-seeking missiles.

He wasn't accused of assisting with the J-20 program, though prosecutors said he visited an aviation design facility in Chengdu, the western city where the stealth fighter was tested. Aviation experts have noted that the J-20 prototype that made the test flight had unusual exhaust nozzles, which appear to be designed to prevent it from emitting enough heat to be detected by infrared radar.

The Chinese experts rejected the idea that China obtained American technology either from espionage or from the wreckage of the F-117-which they said used less advanced technology than what China has developed-although some acknowledged that China may have used publicly available source materials.

"China is completely capable of making its own stealth fighter jet," said Li Daguang, a professor at the People's Liberation Army's National Defense University. "I think we developed the J-20 largely on our own research, but at the same time learning from existing foreign models. Many countries have already possessed stealth-jet technology....Stealth materials are not considered highly sophisticated or confidential at all."

China's Defense Ministry and Air Force declined to comment on any of the reports, as did China Aviation Industry Corp., which is developing the J-20, and the Chengdu Aircraft and Design Institute, where it is being tested. Asked about the reports at a routine briefing, Foreign Ministry spokesman Hong Lei said, "I am not aware of relevant information."

Current and former U.S. officials also said in 2009 that computer spies had repeatedly broken into the program to develop the F-35, the next generation of U.S. stealth fighter. The former officials said at the time they thought the attacks came from China. Beijing has denied involvement in such cyberattacks.

Song Xiaojun, a former naval officer who is now a military commentator for Chinese state television, attributed the reports that China appropriated its stealth technology to those who "just envy and hate us for having developed the jet, for we made something they thought we'd never be able to make. I'm saying that I'm sure the technology is 100% Chinese."

The F-117 was developed in secrecy in the 1970s and began service in 1983. It was not completely invisible to radar, but was very hard to detect because of its unique radar-absorbent coating. The one shot down over Serbia was the first to be hit. The F-117 was retired in 2008.

The AP quoted Adm. Davor Domazet-Loso, Croatia's military chief of staff during the Kosovo war, as saying intelligence reports in 1999 described Chinese agents "criss-crossing" the region where the F-117 went down, and buying bits of wreckage from local farmers.

"We believe the Chinese used those materials to gain an insight into secret stealth technologies ... and to reverse-engineer them," he was quoted as saying.

Parts of the F-117 are still exhibited at Belgrade's aviation museum.

Wang Yanan, associate editor in chief at China's Aerospace Knowledge magazine, said there was no point in China acquiring wreckage parts of the F-117, as its technology was already outdated in 1999.

Still, other analysts point to signs of Chinese interest in the F-117. Andrei Chang, the Hong Kong-based editor of Kanwa Defense, an online publication about military affairs, said China had also built a scale model of the F-117 at an aviation research institute in the city of Luoyang in Henan province.

"This is the fundamental reason why it took China only a very short period of time to develop several types of stealth materials in Beijing," he said.

He included in an emailed statement what he said was a satellite photograph of the F-117 model, taken in May 2010.

The B-2, which was developed in the 1980s and first unveiled in 1988, is still used as a long-range strategic bomber and has never been shot down.
-Yoli Zhang and Juliet Ye contributed to this article.


---米元技師、中国にステルス情報 違法提供に禁錮32年---
2011年1月25日 17時10分
http://www.tokyo-np.co.jp/s/article/2011012501000555.html

 【ロサンゼルス共同】米ハワイ州の連邦裁判所は24日、巡航ミサイルをレーダーに探知されにくくするステルス能力に関する軍事情報を違法に中国政府に提供したとして、元技術者ノシル・ゴワディア被告に対し禁錮32年の判決を言い渡した。AP通信が報じた。
 APは23日、中国がこのほど開発した次世代ステルス戦闘機「殲20」について、1999年のコソボ紛争で撃墜された米軍のステルス攻撃機の技術が盗用された可能性が高いと報道。中国がなりふり構わず米国のステルス技術の獲得を目指していた様子を連日伝えた。
 ゴワディア被告は、APによると66歳。03~05年、情報を中国政府に伝え、見返りに少なくとも11万ドル(約900万円)を受け取ったとされる。

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