A glider with solar cells on the wing can be used as a satellite in
stratospheric altitudes.
The energy optimization of flight energy expended versus solar
energy gathered is a challenging task.
Developing miniature and lightweight solar converters,
bidirectional battery converters, BLDC drivers and glider wings with
high lift/drag. Involves multiple diverse disciplines: aerodynamics,
materials, power electronics, control algorithms, sensors and
estimation, etc.