Abstract: A turbine responsive to a moving fluid, which can be wind or another fluid, wherein a rotatable central shaft supports at least one radial arm with a blade assembly at the free end of the radial arm. The blade assembly includes a rocking arm pivotted on the radial arm, a blade member attached to the rocking arm, or a part thereof, and a counterweight attached to the blade. The blade assembly articulates with respect to the radial arm in response to the interaction between the moving fluid and the blade.The turbine is self starting and self controlling in response to excessive moving fluid velocity.

Abstract: A free flying aerodynamic toy that is manually launched and is composed of an elongate air foil having two identical surfaces that are joined to one another symmetrically of the longitudinal axis so that in response to rotation and translation through air, the surfaces sequentially cooperate with air flow thereover to produce lift. Circular stabilizer plates at opposite ends of the air foil produce vertical stability and have weighted peripheries to increase rotational inertia. Centrally of the air foil is a rib which divides the air foil into two symmetrical parts. The parts extend outward from the rib at a positive dihedral angle (an included angle less than 180.degree.) so as to enhance stability and reduce roll and yaw of the toy.BACKGROUND OF THE INVENTION1. Field of the InventionThis invention relates to an aerodynamic toy and more particularly to such toy that is capable of free flight so that it can perform maneuvers upon being thrown into the air by the user thereof.2. Description of the Prior ArtU.