Abstract: An apparatus includes means for biasing a first airfoil of a vehicle toward a fully deployed position, means for restraining the first airfoil in a stowed position, means for releasing the first airfoil from the stowed position, means for restraining the first airfoil in a partially deployed position, and means for releasing the first airfoil from the partially deployed position. A method includes restraining an airfoil in a stowed position, releasing the airfoil from the stowed position, and biasing the airfoil from the stowed position toward a fully deployed position. The method further includes restraining the airfoil in a partially deployed position, releasing the airfoil from the partially deployed position, and biasing the airfoil from the partially deployed position toward the fully deployed position.