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grown to the size of a small to medium
helicopter giving birth to a new breed of
rotary wing aircraft. This is the birth of
the dream of autonomous personal point-
to-point transportation.
The American Electric-drive truck
manufacturer Workhorse showcased
a hybrid-electric vertical-takeoff-and-
landing (eVTOL) aircraft called SureFly
this year. The octocopter, which design
is reminiscent of the Chinese Ehang 184
drone, builds on Workhorse's development
of the HorseFly delivery drone, has four
arms with two electric motors on their end.
It is powered by a nondisclosed 200-hp
turbocharged combustion engine which
drives a generator backed up by a dual-
battery system.
The German Volocopter 2X was recent -
ly launched into the market. This verti-
cal take-off and landing aircraft is purely
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powered by electric energy and capable
of carrying two persons. Its 18 electric
motors give high failure tolerance and
the ability to fly emission-free, and with
low-noise.
The above listed examples show what is
already doable today and what is needed
for an electric flight. For satisfactory results
the following factors are needed: An air-
frame, families of reliable electric motors,
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