Australian Flying - July 2018

(Wang) #1
certain amount of mass. A two-
seater aircraft, effectively becomes
a one-seater and a four-seater is
reduced to a three-seat capacity.
You can however, f ly this aircraft
three or four times as far and you
have a handy portable generator if
your destination is off-grid.

An electric future
More electric and hybrid electric
aviation solutions are in the
pipeline. These technologies
have the potential to reduce CO2
emissions, reduce noise and cut
fuel costs. What is surprising
though, is that they also have

huge potential to improve aircraft
performance. To date, the
limitation of electrics has always
been the battery, but the big
advantage is that this technology
is much better at maintaining
power at altitude. The versatility
and climb rates of these hybrid
electric or turbo electric engines
are also surprisingly impressive.
Imagine if a single engine aircraft

were to have two extra motors,
one on each wing, and that each
of these motors were based on
this revolutionary use of electric
propulsion. The power that
you then have with these extra
motors, running extra propellers
is amazing.
This concept has, in fact, been
developed in collaboration with
a small Australian company
Air Ute Pty Ltd. They’re based
in Caloundra, Queensland.
And after looking at Richard
Glassock ’s designs, it’s obvious
that neither enthusiasm nor
technological expertise is the
problem. Finding the funding to
go into commercial production
is the problem. But engineers
and designers all around the
world seem determined to make
innovations like these happen. It is
only a matter of time.
As I drive off in my car, in my
old paradigm, using a conventional
internal combustion engine, I
quickly become stuck in traffic.
It makes me wish the new world
that Richard is working towards
would hurry up and happen. But
in a way, the traffic congestion,
which annoys us all, is beside the
point. Richard’s f lying motorbike
isn’t an idea borne of weary drivers
dreaming of escaping peak hour.
His is an aviation solution to an
aviation problem – a problem
felt starkly in Australia and
increasingly an issue in busier GA
markets like the US, because of
the disappearance there of Fixed-
Base Operators (FBOs).
American FBOs are a legacy of
the grand days of the barnstormer,
who travelled widely before
putting down roots at small
airports to set up support services
for GA pilots. They would help
with parking, fuel, luggage, food
and, most importantly for this
story, they would help pilots
procure ground transportation
once they had landed. Sadly,
FBOs are under threat in the
US, and even more sadly, they
don’t exist in Australia. Once
upon a time there were such
services in this country. When
the Department of Civil Aviation,
the DCA, still existed, there were

Aussie Innovator


“the problem of nding renewable


energy sources for aviation


is one that can be solved.”


66


AUSTRALIAN FLYING July – August 2018

LEFT: The e-taxi
wheel enables
a commercial
aircraft to taxi
using electrical
power, reducing
the need to
carry taxi fuel.
RIGHT:
Australian
innovator
Richard
Glassock.

had two engines. He says no. The
electric aircraft is unmodified. It
has an electric motor and battery
pack – that’s how it f lies, even
without the motorbike enabler
attached. There are already several
versions of this type of craft in our
sky, which are fine. But these are
only for short range f lights, for
example an hour, because of the
battery limitation. If you want to
go further, you’re in trouble.
In Australia, they’re not so
practical, but if you put on a range
extender, then you can f ly much
further for longer and you can
use alternative sources of power.

Added to this, because the range
extender is also a motorbike, you
have a ground transport solution
when you get to your destination
airport. It is very simple to unclip
the range extender and convert
it back into a motorcycle, simply
refueling at a petrol station. The
downside is that it reduces the
plane’s load-carrying capacity,
because the motorbike pod has a

conventional electric aeroplane,
extending its range and acting
as a detachable motorbike when
the plane is one the ground. Two
versions were launched under the
name RExLite and RExMoto
at the International Conference
on Innovation in European
Aeronautics Research in Warsaw
last year. This small concept is
something that could happen
on a larger scale and one way or
another will inf luence our aviation
future.
Imagine, instead of getting in
your car in the morning, you open
the shed and there is your hybrid
motorcycle. It is small and has
a conventional fuel engine and
ordinary wheels. But this also
drives a generator, batteries and
sophisticated power electronics.
What’s different about this, is
that it is part of a modular system,
meaning that you can clip it onto
the base of an all-electric aircraft
within minutes of arriving at your
local aerodrome. It simply sits
under your aircraft as a pod and
provides supplementary electrical
power to the aircraft, while the
bike’s fuel motor acts as a high
efficiency generator.
It takes me a moment to
understand this and I ask Richard
if that means the aircraft now
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