Abstract: A relatively inexpensive, high efficiency, detachable thrust vector mechanism is provided for addressing the current shortcomings in the art. In the illustrative embodiment, the invention is used in conjunction with a nautical or aeronautical vehicle having primary propulsion means and at least one fin movable, to provide maneuverability, in response to a conventional control system. The invention is a detachable thrust vector mechanism comprising auxiliary propulsion means pivotally attached to the missile through connecting means. Contact means are provided for transferring bi-directional motion of the fin to the auxiliary propulsion means. The mechanism is operable to provide auxiliary thrust for the missile along a thrust vector determined by the control system. The invention is effective to provide missile steerage at low speeds, particularly during initial launch and pitchover.