‘INVISIBLE’ AIRPLANES – A RACE FOR NEW TECHNOLOGY

Fox News on December 17, 2013, reported that new stealth technology makes airplanes invisible not only to radar, it renders them hidden to the human eye as well…Excerpts below:

News reports from China last week touted the country’s work on a “cloaking” technology that uses a hexagonal array of glass-like panels to bend light around an object, obscuring it from view as though hidden by an invisibility cloak. Experts say the technology is legit – and not unlike American and European projects from the past few years.

“The general public … might not hear about how far the U.S. has really come, because it is and should remain classified,” firearms expert Chris Sajnog, a former Navy SEAL, told FoxNews.com. “Other countries are still playing catch-up — but they’re closing the gap.

China is hardly alone in seeking a way to evade radar systems and the naked eye. Here’s a few recent examples:

March 2013: The University of Texas used “mantle cloaking” to cancel out light waves that bounce off a shielded object.

Nov. 2012: Duke University disappeared a cylinder by guiding light around it before putting those photons back on their path.

Nov. 2012: Fractal Antenna Systems has a microwave invisibility cloak that can reportedly make an entire person disappear.
Oct. 2011: University of Texas tech uses the mirage effect, in which light rays are bent to produce a displaced image of distant objects or the sky.

But while classified work progresses, several public projects from universities and military supply companies show just how real this futuristic technology is.

– Chris Sajnog, former Navy Seal and firearms expert

“A few years ago we had a demonstration of these technologies here in San Diego,” Sanjog said in an email. “The mirrors currently being used are large and easily detectable, while the use of wavelengths is limited to a very narrow spectrum, i.e. visible light, but not radar or thermal. Also, both of these technologies only work well when viewed from one angle, and in warfare your security is nothing if it’s not 360.”

Major arms developers such as BAE Systems readily acknowledge work on this kind of technology, such as the Adaptiv program, which aims to hide armored vehicles.

“The U.S. military is among many who have expressed interest in Adaptiv, which could be transferred to other platforms, such as ships and helicopters,” said Mike Sweeney, a spokesman for BAE.

BAE’s technology, similar to what the Chinese are now touting, deploys sheets of hexagonal “pixels” that can change temperature very rapidly. On-board cameras pick up the scenery and display it on the vehicle, which can allow a moving tank to match its surroundings.

Research is concentrated mainly on the infrared spectrum, a pressing concern for the Swedish government group funding the work. But BAE has combined its pixels with technologies that camouflage other parts of the electro-magnetic spectrum to provide all-round stealth.

But most camouflage used by the military is not as high-tech as these tools. Take for example the “ghilie suit,” a garment designed to resemble heavy foliage and popular with the military and hunters.

“As a former lead instructor for the Navy SEAL sniper program, I’ve taught many of our current warriors the art of passive camouflage. For example, wearing a well-made ghillie suit in the proper environment can render its user virtually invisible, and this is a cloaking device that works 360, with no batteries needed,” Sajnog said.

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