Abstract: A collimator mounting assembly adapted for attachment to a missile launcher having a pivot member, called a traversing unit, at the apex of a tripod, that is adapted to replace a horizontally-oriented missile launching tube on the pivot member, and includes a mechanism for attaching the collimator mounting unit to the traversing unit, and adjustable tilt, azimuth, and elevation-controllable support plates for a tubular, horizontally-oriented collimator. This assembly permits the optical axis of the collimator placed atop the assembly to be parallel to the longitudinal axis of the missile launch tube, and permits referencing the collimator optical axis to the boresight of the missile launch tube.

Abstract: A target system adapted for use in a cassegrain reflective optical collimator system comprises a single target pattern including at least one visible target, at least one near infrared target and at least one far infrared target. This single test target pattern is joined to a heat-transmitting target support member positioned behind the target pattern, to a heater behind the heat-transmitting target support member, to an insulator behind the heating means, and to an illuminator for each of the targets in the single target pattern behind the insulator plate. The elements of the target system are cemented together in precise registration to form a rugged reliable unit that is low in cost, and that includes all the targets in a single focal plane positioned precisely and as accurately as one micron, which results in optical angular position accuracies of at least 20 microradians when the target is positioned in a long focal length optical system.

Abstract: A combined laser position detector, infrared emissivity target and television target includes a light-transparent substrate having a TV target on one side and an infrared target on a second side, with the two targets in registration with one another. Alternatively, the TV and IR target can be on the same side. The substrate is affixed to a housing that includes light-emitting sources behind the targets positioned to direct emitted light through the targets and also includes a recess for receiving a laser position detector with an opening behind the targets to permit light to pass through the targets and to impinge upon the surface of the detector.

Abstract: In the alumino-thermit method of producing tungsten monocarbide powders, metallic iron is added to the reaction charge in quantities to control the calculated reaction temperature within the range of about 4372.degree. to about 4500.degree. F. It has been found that this process can now be controlled to produce macrocrystalline tungsten carbide powders which are very low in Ti, Ta and Nb content and have a very narrow range of total carbon contents.