Autonomous solar aircraft

This is a solar-powered drone built for long flights. It uses a very lightweight wing covered in solar cells, which is specifically designed with a downward curved bow shape across its span and a flat top surface. The aircraft's body, holding the motor, battery, and electronics, is placed below this unique wing.

Why it matters: Filed before major advances in lightweight materials, solar cell efficiency, and battery energy density. These now make the claimed long-endurance solar flight significantly more achievable.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedCustom lightweight solar wing, flight control

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