6月27日VOA聽力：新裝配或能下降戰役機飛翔員落空意識情形
Two different physiological situations can lead to apilot's loss of consciousness,says Elbit Systemssenior research and development director, retiredfighter pilot Yaron
Kranz.
“One is G-LOC' or G Loss of Consciousness, and theother one is hypoxia which is lack of oxygen to the brain.”
G-LOC happens during sharp turns and high-speed accelerations, when centrifugal forcereduces the normal flow of blood to the pilot's brain.
At that speed, loss of control of the aircraft proved fatal for many pilots.
Hypoxia, or lack of oxygen, can affect anyone at high altitudes, which is why passenger planesare equipped with oxygen masks, deployed in case of loss of cabin pressure.
Current devices for preventing these dangerous situations are bulky so Elbit Systems and astartup called LifeBEAM developed a system called Canary.
It uses small, non-invasive sensors built into the pilot's helmet.
“The pilot doesn't have to do anything in order to activate those sensors and they are smallenough and wise enough to give the information in order to gather the physiological data thatis required.”
When the danger is imminent, the system flashes an alert message on the helmet's visor.
If it senses that the pilot has lost consciousness,it signals the plane's computer to activatethe autopilot.
Elbit Systems is now developing its Canary device for advanced U.S. F-35 fighter jets andother Western aircraft.
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