Patent ID: 8251308
Filing Date: 2012-08-28
Classification: B64C

Abstract:
1. A bottom blade type trefoil flight vehicle comprising: a fixed pitch propeller horizontally mounted about a central shaft; a power unit installed at an upper portion of the central shaft of the propeller; and a control unit installed at a lower portion of the central shaft of the propeller, wherein the control unit includes a control device, first to third fixing plates are sequentially mounted about the control unit at an angle of 120°, one ends of the first to third fixing plates are mounted to the control unit, opposite ends of the first to third fixing plates are mounted to a circular frame and leg plates, the leg plates are longitudinally fixed to a lower portion of the circular frame, first to third adjustment blades are installed at lower portions of front surfaces of the first to third fixing plates by adjustment devices and hinges, respectively, and the first to third adjustment blades are adjusted by the adjustment devices connected to the control device.