Abstract: A flexible, lightweight photovoltaic cell array includes one or more individual photovoltaic cell strings attached to a polyimide film substrate and covered with a polyvinyl fluoride film. Each photovoltaic cell string includes one or more photovoltaic cells attached to a flexible printed circuit board. The photovoltaic cell array may be manufactured by a method that includes bonding at least one photovoltaic cell to a flexible printed circuit board, mounting the flexible printed circuit board on a polyimide film substrate, and covering the flexible printed circuit board with a substantially transparent polyvinyl fluoride film.

Abstract: A flexible, lightweight photovoltaic cell array includes one or more individual photovoltaic cell strings attached to a polyimide film substrate and covered with a polyvinyl fluoride film. Each photovoltaic cell string includes one or more photovoltaic cells attached to a flexible printed circuit board. The photovoltaic cell array may be manufactured by a method that includes bonding at least one photovoltaic cell to a flexible printed circuit board, mounting the flexible printed circuit board on a polyimide film substrate, and covering the flexible printed circuit board with a substantially transparent polyvinyl fluoride film.

Abstract: A flexible, lightweight photovoltaic cell array includes one or more individual photovoltaic cell strings attached to a polyimide film substrate and covered with a polyvinyl fluoride film. Each photovoltaic cell string includes one or more photovoltaic cells attached to a flexible printed circuit board. The photovoltaic cell array may be manufactured by a method that includes bonding at least one photovoltaic cell to a flexible printed circuit board, mounting the flexible printed circuit board on a polyimide film substrate, and covering the flexible printed circuit board with a substantially transparent polyvinyl fluoride film.

Abstract: An adaptive landing gear system for use in an aircraft includes a plurality of leveling struts. Each leveling strut includes an adaptive portion and landing pad. Each adaptive portion includes a fluid reservoir. A change in the volume of fluid in the fluid reservoir is configured to cause a change in extension of the corresponding landing pad. The adaptive portion of each leveling strut is in fluidic connection with the adaptive portion of at least one other leveling strut. The system includes a plurality of valves between the adaptive portions. Compression of the leveling strut forces fluid from the adaptive portion into the adaptive portion of at least one other leveling strut to extend the landing pad of the at least one other leveling strut. The valves prevent fluid from flowing back into the adaptive portion after compression.