초록 ▼

A flight control system provides a maximized mechanical advantage when the load of the airstream on the airfoil is also at a maximum. A control surface is pivotally mounted for movement through a range of positions between a neutral position at which airstream load thereon is a minimum and upwardly

A flight control system provides a maximized mechanical advantage when the load of the airstream on the airfoil is also at a maximum. A control surface is pivotally mounted for movement through a range of positions between a neutral position at which airstream load thereon is a minimum and upwardly and downwardly deflected positions, the airstream load being a maximum in either of the deflected positions. An operator mechanism for moving the control surface between the upwardly and downwardly deflected positions includes a rotor mounted on the airfoil for rotation about a chordwise extending rotary axis and has a horn member with a terminal end offset from the rotary axis. The terminal end of the horn member is slidably engaged with the guide track and an actuator rotates the rotor and by reason of the slidable engagement of the horn member with the guide track moves the control surface.

대표청구항 ▼

1. A flight control system for a generally planar airfoil subjected to an advancing airstream and extending in spanwise and chordwise directions comprising:a control surface mounted on the airfoil for pivotal movement about a spanwise extending axis through a range of positions between a neutral pos

1. A flight control system for a generally planar airfoil subjected to an advancing airstream and extending in spanwise and chordwise directions comprising:a control surface mounted on the airfoil for pivotal movement about a spanwise extending axis through a range of positions between a neutral position at which airstream load thereon is a minimum and a upwardly deflected position, in one instance, and a downwardly deflected position in another instance, the airstream load on the control surface being a maximum in either the upwardly deflected position or in the downwardly deflected position; and an operator mechanism for moving the control surface between the upwardly deflected and downwardly deflected positions, the operator mechanism including: a rotor mounted on the airfoil for rotation about a chordwise extending rotary axis and having a horn member with a terminal end offset from the rotary axis; an elongated transfer member fixed on the control surface and lying generally in the plane of the control surface, the terminal end of the horn member being pivotally attached to a sleeve slidably engaged with the transfer member for movement thereon; and an actuator for rotating the rotor about the rotary axis and by reason of the slidable engagement of the sleeve on the transfer member thereby moving the control surface between the upwardly deflected and downwardly deflected positions; whereby the mechanical advantage offered by the operator mechanism is maximized when the load of the airstream on the control surface is also at a maximum.