A hydrokinetic electrical generating device includes first and second wing assemblies each having axis vertical wings. First and second beam assemblies support the first or second wing assemblies. A first sliding member is slidably connected to the first beam assembly and a second sliding member is slidably connected to the second beam assembly. The axis vertical wings are rotatably connected to one of the first or second sliding members. A first sliding connector is connected to the first sliding member and a second sliding connector connected to the second sliding member. A mechanical-electrical section has first and second flywheels connected by a first or second drive belt to a generator. First and second flywheel connecting rods connect the first or second sliding connector to the first or second flywheel. A water force rotating the wings displaces the connecting rods causing flywheel and drive belt rotation thereby operating the generator.