Abstract: An apparatus for measuring a comprehensive state of vector displacement between a group of at least two pairs of longitudinally spaced side-looking radar arrays mounted upon a flexible host vehicle. This apparatus will operate to measure in three linear translation motions and three rotational motions, the relative positions of the radar array antennas upon the host vehicle during maneuvers of the host vehicle.

Abstract: A mechanism for inserting and aligning electronic modules, especially in se configurations, is provided with removable ring or sleeve whereby the module assemblies may be automatically retracted. The removable ring or sleeve is installed near the threaded end of each mounting shaft. When a shaft is unscrewed from the chassis the ring or sleeve bears against a shoulder formed in the end-portion of the module assembly heat sink frame, thereby providing a lifting force on the module assembly. The ring or sleeve is easily installed or removed through an opening in the side of the end-portion.

Abstract: A mechanism for providing precise (microradians) angular adjustment for h resolution adjustable mounts and platforms used to design optical elements. The mechanism includes temperature-controlled rods having internally embedded heater elements and thermistors attached to a stable platform. The heaters and thermistors are attached to a proportional control circuit which accurately and precisely regulates rod temperatures.

Abstract: An attitude independent, evaporative cooling system used in airborne systems for cooling electronic components. The coolant is water contained within ducts in heat transfer relationship with the electronic components. The ducts are sealed to water passage by porous membranes which permit passage of steam into a manifold which is sealed by a normally closed pressure relief valve. The relief valve is operable at a selected steam pressure which corresponds to the desired maximum operating temperature for the electronic components.

Abstract: A positive locking mechanism is provided for securing a plug-in electronic odule in a chassis. A threaded element is provided for attaching the electronic module to the chassis and tightening of the threaded element forces a module connector into engagement with a mating connector in the chassis. A pivotal driver blade is provided for turning the threaded element and, after the connectors are mated, the driver blade is pivoted and a cam thereon actuates wedges which provide a good thermal interface between the electronic module and the chassis. The driver blade also serves as means for extracting the plug-in electronic module from the chassis.

Abstract: An electrically insulating, structurally strong bushing assembly for use at the chassis mounting interface of an electronic chassis, especially a Low Power RF chassis requiring a single point electrical ground, includes a specially machined epoxy-glass bushing for electrical insulation with a steel insert for high strength. The epoxy-glass bushing is machined from plate stock with the grain direction running perpendicular to the structural load and includes both inside and outside threads. The steel insert threads into the epoxy-glass bushing which is then threaded into the electronic chassis.