Airbus has released the latest installment of
the Future by Airbus, its vision for sustainable aviation in 2050
and beyond.
For the first time the vision looks beyond
aircraft design to how the aircraft is operated both on the ground
and in the air in order to meet the expected growth in air travel
in a sustainable way.
Charles Champion, Executive Vice President
Engineering at Airbus, said, “Our engineers are continuously
encouraged to think widely and come up with `disruptive’ ideas
which will assist our industry in meeting the 2050 targets we have
signed up to. These and the other tough environmental targets will
only be met by a combination of investment in smarter aircraft
design and optimising the environment in which the aircraft
operates. That is why our latest Future by Airbus Smarter Skies
concepts focus on not just what we fly but, how we may fly in 2050
and beyond.”
Already today, if the Air Traffic Management
(ATM) system and technology on board the aircraft were optimised,
Airbus research based on recent research suggests that flights in
Europe and the US could on average be around 13 minutes shorter,
and flights in other parts of the world could be shorter too.
Assuming around 30 million flights per year,
this would save around 9 million tonnes of excess fuel annually,
which equates to over 28 million tonnes of avoidable CO2 emissions
and a saving of 5 million hours of excess flight time. Add to this
new aircraft design, alternative energy sources and new ways of
flying and you could see even more significant improvements.
The Future by Airbus concentrates on just that
and the Smarter Skies vision consists of five concepts which could
be implemented across all the stages of an aircraft’s operation to
reduce waste in the system (waste in time, waste in fuel,
reduction of CO2). These are:
Aircraft take-off in
continuous ‘eco-climb’: Aircraft launched through assisted
take-offs using renewably powered, propelled acceleration,
allowing steeper climb from airports to minimise noise and reach
efficient cruise altitudes quicker. As space becomes a premium and
mega-cities become a reality, this approach could also minimise
land use, as shorter runways could be utilised.
Aircraft in free flight
and formation along ‘express skyways’: Highly intelligent
aircraft would be able to “self-organise” and select the most
efficient and environmentally friendly routes (free flight),
making the optimum use of prevailing weather and atmospheric
conditions. High frequency routes would also allow aircraft to
benefit from flying in formation like birds during cruise bringing
efficiency improvements due to drag reduction and lower energy
use.
Low-noise, free-glide
approaches and landings: Aircraft allowed to take free
glide approaches into airports that reduce emissions during the
overall decent and reduce noise during the steeper approach as
there is no need for engine thrust or air breaking. These
approaches would also reduce the landing speed earlier which would
make shorter landing distances achievable (less runway needed).
Low emission ground
operations: On landing aircraft engines could be switched
off sooner and runways cleared faster, ground handling emissions
could be cut. Technology could optimise an aircraft’s landing
position with enough accuracy for an autonomous renewably powered
taxiing carriage to be ready, so aircraft could be transported
away from runways quicker, which would optimise terminal space,
and remove runway and gate limitations.
Powering future aircraft
and infrastructure: The use of sustainable biofuels and
other potential alternative energy sources (such as electricity,
hydrogen, solar etc) will be necessary to secure supply and
further reduce aviation’s environmental footprint in the long
term. This will allow the extensive introduction of regionally
sourced renewable energy close to airports, feeding both aircraft
and infrastructure requirements sustainably.
“We know people want to fly more in the future
and our forecasts support this. We also know that they don’t want
to fly at any cost,” said Charles Champion. “Our focus at Airbus
is on meeting this continuous growth in demand, keeping the
passenger, our customers and the environment at the centre of our
thinking. The future of sustainable aviation is the sum of many
parts and success will require collaboration amongst all the
parties who are passionate about ensuring a successful prospect
for aviation.”
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