Lockheed Martin unveils plans for quiet supersonic passenger airplane

It's still at the conceptual stage, but a new supersonic airplane design unveiled this week by Lockheed Martin Aeronautics could be the clearest indication yet that we're on the brink of a new golden age of super-fast air travel. The Quiet Supersonic Technology Airliner, a sleek twin-engined jet plane that will carry up to 40 passengers at speeds of Mach 1.8, was revealed on Wednesday at an American Institute of Aeronautics and Astronautics conference in Dallas. Though still a ways off… (www.msn.com) 기타...