METHOD OF AND MEANS FOR OPERATING A CONTROL SURFACE OF A FLYING BODY

摘要

1280992 Controlling aircraft MESSERSCHMITT-BOKLOW-BLOHM GmbH 12 March 1968 [27 April 1967] 12102/68 Heading B7G [Also in Division F3] A method of adjusting the angular position of a freely rotatable control surface of a flying body, wherein a liquid, pulverous or gaseous medium is blown out in a direction transverse to the direction of the ambient air flow over and close to the upper or lower side of the control surface so that the pressure distribution over the control surface is upset and the surface rotates to a new equilibrium position. By "freely rotatable" is meant a control surface not subjected to any mechanical controlling system. As shown in Fig. 1 a missile 1 has two control surfaces 2, 3 pivoted about axes perpendicular to the longitudinal axis of the missile body. Three rows 4, 5, 6 of orifices are provided above and below each control surface in the missile body through which gaseous medium is blown in a controlled manner to adjust the control surface positions. In another embodiment, Fig. 2, the medium issues, selectively, from orifices 7 provided in the upper and lower side of the control surfaces 8, 9. In a modification of Fig. 2, (Figs. 5, 6, not shown) the series of orifices are replaced by continuous slots.