Abstract: A gyromesh solar sail spacecraft having a gyromesh of solar sail panel assemblies, each with a reflective solar sail. The gyromesh of solar sail panel assemblies distributed around a hub and rim with a cable structure, the cable structure having a plurality of radial cables and plurality of circular cables, the radial cables extending from the hub linearly and the plurality circular cables encircling the hub. The solar sail panels assemblies attached to at least one of the plurality of circular cables, at least a portion of the solar sail panel assemblies attached to the circular cables by a plurality of actuators, respectively, wherein centrifugal force keeps the plurality of radial cables, plurality of circular cables, and solar sail panels extended from the rim.