[LUM#3] Under Safer Skies

Even more reliable aircraft: that’s what researchers promise at EuroMov. These movement specialists are tackling a pilot’s arch-nemesis: spatial disorientation.

The iMose motion simulator, designed by Buck Engineering & Consulting, consists
of a robotic arm and a cockpit. © Patrick Aventurier

Can you tell up from down? Tell the difference between going up and going down? Yes, of course! It’s easy when you’ve got both feet on the ground. But it’s harder when you’re at the controls of a plane or a helicopter…“The senses we rely on to maintain our balance and distinguish up from down are no longer reliable when we’re in motion without an external reference point, explains Benoît Bardy.

This sensory confusion can cause the pilot to have a distorted perception of his position and movement relative to the Earth. He then suffers from “spatial disorientation”—a phenomenon that is still poorly understood but has serious consequences: it is believed to be responsible for 15 to 20% of airplane accidents.

Upside down

To study this phenomenon, Airbus and Onera, the French aerospace research center, turned to researchers at EuroMov, the European research center for motion, and its specialists in spatial orientation.

“We have a simulator that’s unique in France called iMose, which allows us to put airplane or helicopter pilots in simulated situations to analyze their reactions, explains the director of Euromov.“They wear a virtual reality headset to replicate real flight conditions as accurately as possible, adds Jérémie Landrieu. And they’reequipped with sensors to measure their stress levels, brain activity, and even their eye movements.

Safer flights

The goal of this project, known as CoSenses, is to improve flight safety.“A better understanding of spatial disorientation will enable us to develop solutions to mitigate the risks and reduce the number of accidents, emphasizes Benoît Bardy.

And there are many potential solutions being discussed: improving the training programs used in flight schools, modifying cockpit ergonomics, or optimizing human-machine interfaces.“This is an important issue because, in the event of spatial disorientation, there can be a discrepancy between the sensations the pilot feels and the information provided by the flight instruments, explains Jérémie Landrieu.

“The three-year CoSenses project will lead to the development of a prototype for a new human-machine interface,” explains Benoît Bardy. This is good news for the roughly three billion passengers who fly each year. Air travel is already the safest mode of transportation, ahead of rail… and far ahead of road travel, which is responsible for 1.24 million deaths each year, according to the World Health Organization.

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