Abstract: Furlable sail devices, systems, and methods are provided in accordance with various embodiments. For example, some embodiments include a system and/or device that may include: a furlable boom; a furlable sail coupled with a distal end of the furlable boom; and/or a shear take-up mechanism coupled with a root end of the furlable sail. In some embodiments, the shear take-up mechanism applies tension to the furlable sail. The shear-take up mechanism may include one or more springs coupled with the root end of the furlable sail. In some embodiments, the furlable sheet includes a structural sheet. The structural sheet may include one or more areas with bending stiffness. The structural sheet may be fabricated to be self-supporting. In some embodiments, the furlable boom includes a slit-tube boom. Some embodiments may be configured as deorbit sails.

Abstract: Furlable sail devices, systems, and methods are provided in accordance with various embodiments. For example, some embodiments include a system and/or device that may include: a furlable boom; a furlable sail coupled with a distal end of the furlable boom; and/or a shear take-up mechanism coupled with a root end of the furlable sail. In some embodiments, the shear take-up mechanism applies tension to the furlable sail. The shear-take up mechanism may include one or more springs coupled with the root end of the furlable sail. In some embodiments, the furlable sheet includes a structural sheet. The structural sheet may include one or more areas with bending stiffness. The structural sheet may be fabricated to be self-supporting. In some embodiments, the furlable boom includes a slit-tube boom. Some embodiments may be configured as deorbit sails.

Abstract: Articulating solar panel energy systems, methods, and devices are provided in accordance with various embodiments. For example, the articulating solar panel energy systems or devices may include multiple modular solar panels and one or more tension cables that support the multiple modular solar panels. The articulating solar panel energy systems or devices may include one or more louvering ties coupled with the multiple modular solar panels such that the one or more louvering ties rotate the multiple modular solar panels. Methods of utilizing the articulating solar panel energy systems or devices are also provided.