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Ozone-friendly? (supersonic-transport exhaust)
From:
Discover
| Date:
February 1, 1995
| COPYRIGHT 1995 Discover. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group.Copyright information
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ONE REASON THE U.S. AEROSPACE industry never built a supersonic transport, even as Britain and France went ahead with the Concorde, was a public concern in this country about the effect such planes might have on the ozone layer. The problem is that highflying SSTs dump exhaust directly into the lower stratosphere, where much of the ozone is concentrated. For decades researchers thought that nitric oxide and nitrogen dioxide in the exhaust would probably destroy ozone as effectively a...
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An ozone-friendly SST.(supersonic transport plane)
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; ... that it is possible to build an ozone-friendly SST. We've already tested some promising concepts that indicate a new supersonic transport could operate within strict noise ... ground level, [NO.sub.x] in car exhaust makes ozone. But things are different ... very slow, Parson explains. The ...
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