Flying without pilots: Britain's robot plane
It
is the ultimate flying machine: a robot plane which can take off, land, and
even avoid bad weather without human intervention.
But
far from being a scientific dream, one is currently flying in the skies above
Britain as part of a test programme.
The
engineers behind the technology say it represents the future of air travel and
could even be used on passenger jets to allow pilots to fly alone.
Until
now, unmanned aircraft have been limited to military use in war zones such as
Afghanistan, while police in Britain have also used small remote controlled
models fitted with surveillance cameras. Both usually require pilots on the
ground to fly the aircraft remotely.
The
new system, however, can fly civilian aircraft unaided. Unlike the autopilot
system used in most passenger aircraft, it can fly without the need for pilots
in the cockpit.
On-board
cameras scan the sky for potential hazards and the robotic pilot can recognise
other aircraft, hot air balloons and even parachutists before taking action to
avoid them.
The
cameras also detect clouds, allowing the system to identify and avoid
potentially dangerous weather conditions.
"It
is doing all the things a human pilot would be doing," said Lambert
Dopping-Hepenstal, engineering director of systems and strategy at BAE Systems,
which has developed the system, and programme director of the consortium
conducting tests on the pilotless plane.
"The
level of autonomy can be gradually increased. The system flies by itself on a
preprogrammed course until it detects something is wrong. Then it suggests
manoeuvres that an operator using a laptop on the ground can confirm or reject.
"If
the communication link goes down or the operator is not paying attention, the
on-board system will take action to keep the aircraft safe.
"In
an emergency, it can use infrared cameras to identify safe sites to set down
aircraft by itself and can look for body heat to make sure a landing area is
clear of living things."
The
system is being tested in a converted Jetstream passenger aeroplane fitted with
a bank of computers, switches and relays that can take control of the plane,
which is being flown in an 80-mile wide area of airspace over the Irish Sea,
off the coast of Preston.
Pilots
on board fly the aircraft into the test area before switching over control to
the computer system, which has been developed using technology BAE has used in
its military unmanned aircraft.
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