Optimum speed tiltrotor pioneer Karem Aircraft unveiled an eVTOL
concept aircraft at the Uber Elevate conference in Los Angeles on 8 May.
The Butterfly is a quad tiltrotor aircraft that the
company said strikes the right balance between hover and cruise efficiency by
using variable speed rotors – a technology it has been working on for years for
the US Army’s Future Vertical Lift programme.
The firm claims the aircraft’s large, slow turning
rotors provide efficient lift, safer flight and quieter acoustics. According to
the company, quieter flight is key to public acceptance of high levels of eVTOL
traffic above cities.
“Our large rotors let us draw less power from the
batteries than vehicles with smaller rotors, enabling immediate economic
viability without waiting for future batteries,” Ben Tigner, Karem Aircraft’s
chief exectuive, said. “We’re excited to expand our work with partners and
resources available to us through the Elevate partnership, letting us
cross-pollinate our ideas with additional team talent, strengthening all
applications of our vehicle technology.”
Karem Aircraft is founded by aerospace designer, Abe
Karem, designer of the General Atomics Aeronautical Systems MQ-1 Predator.
(Evangle Luo of TTFLY shared with you)
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