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Transportation

Submission + - Japan Grounds All Its Boeing 787s After Emergency Landing (bbc.co.uk)

hcs_$reboot writes: The Boeing 787 Dreamliner has already occupied some of Slashdot news space recently: FAA to investigate the 787 (Jan 11) or 787 catches fire in Boston (Jan 08). Today (Jan 16 JST) happened another incident that makes Japan grounds all of its 787s fleet until an internal investigation gives more information about the problem: a 787 from ANA had seemingly a battery problem and some smoke has been seen inside the cockpit. The plane had to proceed an emergency landing and passengers had to be evacuated.
This is the latest setback for Boeing and its problem-hit Dreamliner planes that takes another turn today with the grounding of the Japan 787s fleet.

Transportation

Submission + - Laser speed sensor promises safer air travel (reuters.com)

hcs_$reboot writes: Airplanes use currently the (un)famous pitot tubes to get an estimate of their current speed. Unfortunately the tubes may suffer from the very low temperatures at high altitudes, and send wrong data to the captain — that may lead to a crash in the worst case scenario. Australian engineers offer a brand new technology to calculate the plane speed: two lasers beams are emitted in opposite direction, the difference in frequency gives the speed, thanks to the Doppler effect.

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