Northrop Grumman Systems Corporation

William A Moore

Vincent M Ortiz

Cary T Breeden

Philip J Zasadny

Alf Marrin

The invention is a protective cover assembly having at least one part for a surface of a structure. In detail, the invention includes a first flexible layer of heat resistant material bonded to the structure having an outer surface with a radar cross-section reducing shape. A second layer of radar signature reducing material is bonded to outer surface of the first flexible layer and includes 1) a film of conductive material bonded to the first flexible layer; and 2) a film of radar absorbing material bonded to the film of conductive material. A third layer of heat resistant material is bonded to the second layer, the third layer made of a dielectric material having a thickness selected to provide a reduction in the radar cross-section of the cover when combined with the film of radar absorbing material.

Combination low observable and thermal barrier assembly

A multiposition folding control surface for missiles designed to provide improved launch stability therefor. The control surface can be folded in one of two positions depending upon size and stability requirements, a first folded position for compact carriage with minimal stability requirements, and a second folded position for a less compact carriage with added stability requirements. The multiposition folding control surface comprises a spindle fitting which is attached to the missile, and which is rotatably controlled by a flight control actuator. A center fitting is hingedly attached to the spindle fitting, and provides a nonactuated folding of the center fitting to accommodate more compact missile storage in a shipping container. An actuator housing is hingedly attached to the center fitting, and provides the major aerodynamic surfaces for the control surface. An actuated hinged linkage is attached to the actuator housing, and has an anchor link, one end of which can be attached by a release pin to either the center fitting to provide the first folded position, or the actuator housing to provide the second folded position, depending upon which of the first and second fold positions is selected. A power actuator is provided for powering the actuated hinged linkage, and uses the same power stroke to deploy the actuator housing from either of the first or second folded positions to a fully deployed and extended flight position.

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Rancho Palos Verdes, CA, United States of America

William A Moore