Military And Intelligence News Briefs -- January 17, 2011

The U.S. has acknowledged China’s development of a stealth fighter, which is believed to be in prototype stage. The presumed prototype, seen in Chengdu, Sichuan province, points up China’s increasing military capabilities, which have given others pause. (Kyodo News)

Stealthy Chinese J-20 Vulnerable -- Aviation Week

China’s newest combat aircraft prototype, the J-20, will require an intense development program if it is going to catch up with fast-moving anti-stealth advances.

In fact, anti-stealth will bring into question all stealth designs: How much invulnerability will current low-observability techniques offer as air defense systems adopt larger and more powerful active, electronically scanned array (AESA) radars? From the early days of AESA development, a key goal was to build a radar that could detect very small objects—such as a cruise missile at a distance great enough to target and shoot it down—or a larger object like a fighter with a very low-observable treatment.

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