Oleg Zabluda's blog
Friday, September 16, 2016
 
Restoring Germany’s Captured “Bat Wing”
Restoring Germany’s Captured “Bat Wing”

A team of conservators works to preserve the innovative Horten Ho 229 V3.
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The designer, Reimar Horten, claimed in 1983 that the flying wing was meant to include a kind of stealth capability that would make it difficult to detect with radar. In his 2011 book about the aircraft, Only the Wing, Lee recounts: “Reimar wrote that he planned to sandwich a mixture of sawdust, charcoal, and glue between the layers of wood that formed large areas of the exterior surface of the H IX jet wing to shield…the whole airplane from radar, because the charcoal should absorb the electrical waves.”

As the conservation team prepared the center section for its move, they examined the plywood skin for evidence of radar-absorbing compounds. If charcoal had been added to the flying wing in an effort to deflect radar, they would have expected to see a layer of it, something the team didn’t find.

In 2008, engineers from Northrop Grumman, builder of the B-2 Spirit flying wing bomber, spent a day at the Museum looking at the Horten and making a number of radar measurements. “They published a scientific paper,” says Lee, “and the bottom line is that they couldn’t say the aircraft was any stealthier than a regular sheet of plywood.”
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http://www.airspacemag.com/history-of-flight/horten-flying-wing-180960066/
http://www.airspacemag.com/history-of-flight/horten-flying-wing-180960066

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