Patent ID: 8613409

Claim:
An aerodynamic airfoil having a first, top airfoil flap and a second, bottom airfoil flap, the airfoil comprising: a first rotational shaft located in a forward section of the first airfoil flap and having a first axis of rotation; a second rotational shaft located in a forward section of the second airfoil flap and having a second axis of rotation; wherein the first and second axes of rotation of said first and second airfoil flaps are substantially parallel to one another, a first guide runner and a second guide runner fastened to the aerodynamic airfoil, for the first and second rotational shafts, respectively, wherein the first and second guide runners comprise a rack located on one of the top or bottom surfaces of the guide runners, a first rotational entrainment device and a second rotational entrainment device for said first and second rotational shafts, respectively, wherein the rotational entrainment device comprises a sprocket or a pinion, at least first and second linear drivers for driving the first and second airfoil flaps, respectively, in translation, wherein the at least first and second linear drivers and the first and second rotational entrainment devices are configured to move the first and second airfoil flaps, respectively, independently of one another, simultaneously in translation and in rotation about the respective axis of rotation of the respective rotational shaft; and wherein a translational movement of at least one of the first and second rotational shafts causes the teeth of the sprocket or pinion to engage with the teeth of the rack, which causes the respective flap to rotate about the respective axis of rotation of the respective rotational shaft.