However the unveiling of the Chengdu J-20 is believed to bring China into the restricted ranks of those countries able to build a fifth-generation radar-evading or "stealth" fighter.
The discussion established that while the B-2 may occasionally be detected by some radars, its stealth technology reduces the radar cross-section of the B-2 to the point where radar tracking of the requisite continuity and accuracy is impossible.
CENTERFORSECURITYPOLICY: Roundtable Discussion On The B-2 Bomber
It would have been virtually unseeable on radar, an oceangoing version of our Stealth bomber.
Defence firm Qinetiq and turbine manufacturing firm Vestas are developing "stealth turbines", with radar-absorbing materials and coatings.
Fitted with an array of weapons to enhance her capability, the frigate is capable of near silent running and has a stealth design which significantly reduces its radar signature.
And although the U.S. itself forbids export of its stealth aircraft, they are slathered in Japanese radar-absorbing coatings.
This is highly desirable in stealth aircraft, because joints show up on radar.
The Type 056 stealth frigate has a sleek design that helps it evade radar detection, and needs just one-third of the crew used by its predecessor.
The B-1B has some stealth features: A smooth design and the use of radar-absorbing materials gave it an appearance on radar that is said to be only 1% of that of the older B-52 bomber, even though it is only a little shorter - at 146 feet (44.5 metres) - and weighs almost the same.
The drone is a wing-shaped aircraft, like the stealth bomber, a design that is supposed to make it less visible to radar.
Its defining characteristic is the low-observable, or stealth, features that make it nearly impossible to track or target using conventional radar or heat-seeking missiles.
FORBES: Outcome Of Three Programs Will Drive Defense Sector Consolidation
应用推荐