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Aircraft en Jorge Amarante

14/06/2010

U.S. could approve pilotless planes.

Unmanned aircraft have proved their usefulness and reliability in the war zones of Afghanistan and Iraq. Now the pressure's on to allow them in the skies over the United States.

The Federal Aviation Administration has been asked to issue flying rights for a range of pilotless planes to carry out civilian and law-enforcement functions but has been hesitant to act. Officials are worried that...

28/05/2010

U.S. breaking the record for hypersonic aircraft: six times the speed of sound

An experimental aircraft has set a record for hypersonic flight, flying more than 3 minutes at Mach 6 — six times the speed of sound.

The X-51A Waverider was released from a B-52 Stratofortress off the southern California coast Wednesday morning, the Air Force reported on its website. Its scramjet engine accelerated the vehicle to Mach 6, and it flew autonomously for 200 seconds...