Abstract: A variable feel side stick controller for producing and regulating feedback orces on a side stick for optimum pilot response. The controller consists of the floating table assembly which transfers the three-dimensional motion of the side stick into a two-dimensional motion. A series of hydraulic cylinders mounted on the floating table which are connected to a series of hydraulic circuits regulate the feedback forces produced on the side stick. The instantaneous position of the side stick can be determined from a series of linear potentiometers coupled to the hydraulic cylinders or from a series of force transducers connected to the hydraulic circuits. The two-dimensional floating table assembly allows use of a cam and cam follower arrangement which allows the force field to be varied with the shape of the cam.

Abstract: An event stacker and display device for encoding a multiplicity of event nals into a single output source. The system uses an operational amplifier having three inputs weighted in a "four, two, one" octal fashion. The output of the amplifier is therefore restricted to one of eight possible levels. An optical isolator is also used in the system in conjunction with a Darlington amplifier and a light emitting diode (LED) display device. The optical isolator provides isolation between test equipment and other instrumentation. The Darlington amplifier provides sufficient current to drive the LED display device and the event stacker.

Abstract: A switching system for use in conjunction with a high rate commutator mullexer which separates the commutator switches into two groups. During alternating off periods, each group is grounded through a switch such that voltage which is built up on the inherent capacitances of the commutator switches is reduced to zero. In this manner, crosstalk is virtually eliminated between channels of the commutator.

Abstract: A connector hinge for attaching oil spill containment booms having a male lindrical connector which fits loosely within a female cylindrical connector to allow easy movement of both connectors in both a vertical and horizontal direction. A resilient gasket is disposed within the male cylindrical connector such that the gasket forms an oil-tight seal between the male connector and female connector. The female connector is tapered along its length to allow easy disposition of the male member within its cylindrical cavity. Both the male and female connectors can be attached to a floating oil spill containment boom, a substantially immovable object such as a pier or jetty, or a floating tow assembly. The loose fit between the male and female connectors allows the connector hinge to adjust to tidal variations as well as additionally aiding in placement of the male connector within the female connector.

Abstract: A pressure activated, timed missile flight termination system for destroy a test missile after a predetermined period of flight to shorten its hazard space so that it can be used on firing ranges having a minimum amount of area. A delayed destruct sequence is initiated by pressure in the missile combustion chamber upon ignition of the missile. A pressure driven piston is compressed by the pressure created in the combustion chamber, causing it to strike a primer which initiates a delay fuse, a detonator, and a linear-shaped charge to destroy the missile.

Abstract: A digital antenna pattern generator for producing an electrical signal to mulate any desired antenna pattern for which the device has been preprogrammed. Read only memories are utilized which are preset according to applicable intelligence data to read out desired radar antenna patterns as the memory locations are addressed in seriatim. In the preferred embodiment of the invention, the read only memories are sequentially addressed in accordance with the angular displacement across the antenna beam pattern. In an alternative embodiment, a free-running antenna pattern generator is disclosed in which the beam width, dead time and lobe rate is adjusted. Both systems convert the digital pattern generated by the read only memories into an appropriate output analog signal.

Abstract: An arrangement of thin film resistive layers for hybrid microcircuits that liminates electrical contact problems and provides a means for obtaining high precision by trimming. A thin resistive film is deposited on an insulating substrate over a mask. Without breaking vacuum, a second resistive film which is not subject to oxidation is deposited over the first resistive film. The second resistive film is then etched away from portions which are not used as contact points. Since the second resistive material has a different resistivity, it is also used for low value resistive portions in multiple resistor networks.

Abstract: A multiple channel decommutator accumulator for decommutating a multiplexed ncoded signal forming a train of serial pulses on a single input line to form a series of parallel channels wherein the pulses are accumulated. A display device is provided for addressing any one of the series of channels for continuously displaying the signal accumulated by the channel.

Abstract: A flying target control system for directing a flying target along a radio eam heading toward a ship under simulated attack according to a preselected altitude and speed profile. The control system utilizes a TACAN transceiver which receives TACAN signals emitted from the ship under simulated attack. The TACAN transceiver produces an azimuth signal to steer the target via an automatic pilot toward the ship under simulated attack and a range signal which is used to address a profile storage device. The profile storage device produces altitude profile control signals and speed profile control signals according to the range of the target from the ship which are fed into the automatic pilot to guide the target along its preselected altitude and speed profile.

Abstract: A self-contained acoustic beacon activated by a seawater switch for provig an independent method of locating and recovering a floating or submerged recoverable target. The device provides an ideal operating life for target recovery of about 36 hours as well as providing an extensive underwater range. The device also provides stable frequency operation without a crystal-controlled oscillator over a wide range of source voltages allowing use of inexpensive batteries as a voltage supply source. Additionally, the signature or output signal code of the device can be changed simply and quickly providing positive identification of the acoustic beacon and lengthened operating life span.