It is time for a change. The
impact of civil aviation on the environment cannot be ignored. Equally the
contribution that the aviation industry makes to the global economy must also
be acknowledged.
The aviation industry is a
significant contributor to the global economy and plays an important role in
facilitating global commerce. In addition, the sector arguably fulfils a wider
role in society, connecting families and communities and in particular guaranteeing
those in remote places access to essential supplies and health care. Given the
integral role that aviation plays in the global activity, it is clear that any
solution will need to involve not a curtailing of aviation activity, but rather
a reimagining of the way it is executed. Inevitably any such reimagining will
involve finding a viable alternative to conventional fuel technologies as a
means of powering aircraft.
The two alternatives to
conventional fuel sources most commonly discussed are biofuels and electric
and/or electric-hybrid aircraft.
The European Commission, as part
of its Flightpath 2050 plan, wants carbon dioxide emissions reduced by 60%,
nitrogen oxide emissions reduced by 90%, and noise pollution reduced by 75%.
The European Aviation Safety Agency has announced that it will start
categorising aircraft based on their carbon dioxide emissions, and the UK has
committed to a goal of net-zero carbon emissions by 2050.
EasyJet, the British low-cost
carrier, says it will start using electric aircraft by 2027, according to the
company’s head of engineering, Gary Smith.
“Everyone’s saying this is going
to happen and it’s just a question of when. I’ve come from a time when electric
aircraft was impossible, but now we’ve turned that corner.”
The airline is working with
American start-up Wright Electric to build electric planes for regular services
that fly distances of less than 300 miles.
“There’s a tremendous demand for
lower emissions aviation among consumers and also among airlines. Lower fuel
consumption means lower costs as well.” Wright Electric CEO Jeff Engler said.
The fuel bill for the global
airline industry last year was estimated to have totaled $180 billion. In 2019,
the fuel bill is forecast to rise to $206 billion, accounting for 25% of airlines’
operating expenses. (Tom Chitty, 2019)
Electric planes would also have
zero emissions, in an industry which produces around 2% of all human induced
carbon dioxide emissions, along with less vibration and lower noise.
However, according to Eviation,
the Israeli company that created the Alice, the world’s first commercial
all-electric passenger aircraft, it’s the economic benefits that are driving
the development of electric planes.
“It makes economic sense.” said
CEO Omer Bar-Yohay.
“This plane will cost $200 of
flight hour to operate, a fraction of what a similarly sized and similar
performance aircraft would cost to operate, and this is the reason we started
the company.”
U.S. regional carrier Cape Air
has already put in a “double digit” order for the Alice plane.
But there are still a number of
challenges. The Alice for example holds just nine passengers and two crew
members and its maximum flight distance is 650 miles on a single charge,
roughly the distance between Paris and Barcelona. Popular planes used for
short-haul flights, such as the Airbus A320 and the Boeing 737, can easily seat
more than 100 passengers and cover over 1,000 miles.
Alice Specification
Alice uses distributed propulsion
with one main pusher propeller at the tail and two pusher propellers at the
wingtips to reduce drag, create redundancy and improve efficiency.
Low operating cost
Building an electrically powered
aircraft competes on all of the highest cost factors of the operational cost of
the plane, fuel & oil and motor reserve.
State-of-the-Art Technology
Drawing from an extensive base of
innovation in the fields of airframe design, battery technology and
integration, advanced lightweight materials, thermal management and vehicle
autonomy.
Fast and Comfortable
All composite structure built for
electric integration, extreme propulsion & aerodynamic efficiency and
flight stability.
Sustainable, low noise &
zero emissions
Quiet and emission free engine.
Seats
|
9 PAX (9+2)
|
Cabin
|
Pressurized
|
Cruise Altitude
|
10,000’
|
Cruise Speed
|
260 knots
|
Range + IFR reserve
|
650 miles
|
Energy pack
|
Li-lon - 900 kWh
|
Service ceiling
|
30,000'
|
VNE
|
340 knots
|
Approach speed
|
100 knots
|
Length
|
12.2m
|
Wingspan
|
16.12m
|
MTOW
|
6,350 kg
|
Power plant
|
3X260kW
|
In the near future at least,
electric aircraft may not be a total game-changer – but there is certainly the
potential to substantially change the face of short and medium-haul aviation
within the next two decades.
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