The present application is directed to a tethered airborne wind power generator system including a plurality of pilot buoyant parafoils, at least one power generator parafoil, a nacelle and its twin-blimps, and a train of windsock propellers. The plurality of pilot buoyant parafoils is inter-connected via a composite cable. The power generator parafoil with built-in wind turbines can be suspended beneath the pilot buoyant parafoils via the composite cable. The nacelle is suspended beneath the power generator parafoil via a composite cable. A train of windsock propellers can be coupled to a rear end of the nacelle. The system shall also be applicable on ground by the deployment of an array of trains of windsock propellers hung onto a steel cable grid supported by steel towers to form a wind farm for power generation. The trains of windsock propellers rotating by wind drive their respective outboard generators to generate electrical power.