Flying-V by Airbus
A collaboration between Airbus, TU Delft and KLM, the Flying-V is a
design for an airplane that has the passenger cabin, cargo hold and fuel
tanks integrated in its wing structure. The aerodynamic shape and
reduced weight makes this long-distance airplane highly energy
efficient, using 20% less fuel than the A350.
In
the summer of 2020 the scaled flight model completed a successful maiden
flight. You can read the details of the test flight
here.
SUGAR Volt by Boeing
Boeing's partnership with NASA on the
Subsonic Ultra Green Aircraft Research (SUGAR) project
brought us the first concept for a hybrid electric commercial airliner.
Designed to combine electric power with traditional fuel, this airplane
would use dual-turbine engines powered by jet-fuel in the inicial part
of the flight, and at cruising altitude, the system would turn over to
electrical power. This would result in large reductions in emissions of
CO2 and nitrous oxide and has the potencial to reduce noise.
You can learn more about the SUGAR project
here.
Alice by Eviation
This 9 seater aircraft, designed for short-haul flights, is powered by
three electric engines and promises to make regional travel more
sustainable, affordable and quiet. It's expected to be powered by an
820 kWh lithium-ion battery and for each hour of
flight time is expected to require a charging time of 30 minutes.
You can explore the characteristics of this aircraft
here.