Abstract: A high-efficiency turbine includes low-tensile-strength rotor blades capable of high-temperature operation (such as ceramic) which are mounted on fluid bearings between a continuous rim and a hub, the rim being connected via high-tensile-strength spokes through each blade to the hub. The fluid provides internal support to the blade structure and provides a bearing medium and force with which to maintain blade position under compression. One or more fluids may be employed as coolants in passages within the blade to establish an adequate temperature gradient between blade surface and the associated spoke to minimize spoke failure due to overheating.