Abstract: An electronic controller for an internal combustion engine provides a ratio control signal corresponding to a respective air/fuel ratio, and responds to an air flow signal, a fuel flow signal and the ratio control signal to control fuel flow as to make the ratio of air flow to fuel flow substantially equal to said respective air/fuel ratio. The ratio control signal is developed from a base run ratio control signal as modified in response to various parameters such as engine temperature, manifold pressure, idle, manifold vacuum, fuel temperature, wide open throttle, engine speed, and start. The controller also provides speed-up circuit for promptly responding to change in air flow and dynamic braking for the fuel metering pump. The pump speed circuit includes a range extender.

Abstract: An indexing and locating component to be used with a fixture for precision machining of parts. The component includes a receiver bushing press fitted into a fixture and a locating pin which is adjustable rotationally as well as vertically. A lock nut locks the pin in a predetermined position and permits removal and replacement of the pin with another pin having another configuration. Locating pins of various configurations are shown.

Abstract: A feed rate attachment for a drilling tool or the like. The drilling tool is equipped with a piston attached thereto operating within a cylinder positioned against the work-piece. A hydraulic damper is utilized to linearly resist the movement of the drilling tool attached piston relative to the cylinder.

Abstract: A deployment system for a deployable truss structure particularly adapted to space applications which has high structural efficiency and can be remotely operated in a controlled, sequential manner. The truss in its deployed configuration exhibits a "diamond" cross section. Each of the four sides of the structure is essentially a "Warren" truss. Diagonals on the opposite sides of each diamond incorporate a mid-span hinge and the other two diagonals are rigid tubes. When packaged, all elements of the truss are folded so that they are parallel to one another and contained between two guide rails. The guide rails are located on either side of the diamond truss. The horizontal strut connection points or nodes are fitted with rollers that are locked in the guide rails for movement therealong. The deployment initially lifts upright truss members to the vertical position, forming the basic diamond shape of the truss.

Abstract: A dual-path, multicontact connector for a printed circuit board includes two perpendicular groups of contacts and a plurality of internal switches which permit conductivity to be selectively established between one or more pairs of contacts or between either contact of each pair and an electrical circuit on the circuit board. Each contact of a contact pair is included in a respective group of contacts. The perpendicular arrangement of the contact groups allows one group of contacts on the dual-path connector to engage corresponding contact groups on adjacent abutting dual-path connectors. Selective operation of the internal switches in a series of abutting connectors can provide alternate conductive pathways to electrical circuits on any board through the contacts of one or more adjacent connectors.

Abstract: A propulsion system for an airplane to permit it to achieve vertical and/or short take-offs and landings. The propulsion system is integrated into a wing/nacelle unit and includes a thrust vectoring system. A separate flow turbofan engine is mounted in each wing/nacelle unit. A system of three flaps is located at the rear of each wing/nacelle unit for deflecting the turbofan engine exhaust downward, rearward, or any angle in between. These three flaps are arranged to provide a main thrust nozzle in the horizontal flight position without any additional flaps between them. One flap is located at the wing/nacelle upper surface trailing edge. Two slots are provided at the leading edge of this flap. The upper forward most slot is provided as an exit nozzle for the engine turbine exhaust, which is shrouded from the fan exhaust. The second of these two slots removes a portion of the high energy fan exhaust from the fan discharge duct and ejects it over the flap upper surface.

Abstract: A time shared transceiver laser system which may be rapidly switched between two subsystems while using the full power of the laser beam and which also generates a local oscillator beam required for coherent detection. A method of time sharing and for generating the local oscillator is disclosed.

Abstract: A removable and replaceable locating pin adapted to locate a workpiece on a tooling fixture for machining thereof. The locating pin includes a locator pin having various illustrated configurations is adapted to cooperate with a workpiece for positioning the workpiece in various directions of restraint. The locating pin is provided with manually actuatable locking means that permits easy adjustment or removal of the specific locator pin as a particular machining operation may require. Flexibility of the set up of the tooling for machining of a workpiece is enhanced.

Abstract: A superconducting coil having an elongated longitudinally extending first hollow metallic housing and adapted to provide a cooling passage of liquid helium therein. At least one superconducting metallic conductor is disposed within the housing which is surrounded with an electrical and thermal insulating material. An elongated second metallic housing surrounds the inner insulated structure and is adapted to be mechanically connected to similar structure when arranged into a coil structure having a predetermined configuration. A method of manufacture is also disclosed as well as how the novel integrated coil and case structure is advantageously employed in an improved fusion reactor structure and Magneto Hydrodynamic Magnet Structure.

Abstract: A solid fuel rocket in which the rocket casing acts as a warhead. Solid propellant rocket motors require relatively heavy cases to contain the 1000-2000 psi combustion pressure needed for efficient performance. This casing can be used as a fragmentation warhead by forming longitudinal grooves in the elongated rocket casing, causing the casing to fracture along the grooves and allowing the pressure within the casing to disperse the fragments. The resulting strip-like fragments are particularly useful against "soft" equipment targets, such as anti-vehicle and anti-radar applications. Several different methods for rupturing the case along spaced, parallel longitudinal lines are disclosed. This system eliminates the need for a separate warhead including case and explosive at the cost of a slight increase in propellant case thickness and weight.

Abstract: An antenna-radome structure that functions as a self-referencing interferometer, including a radome having a leading edge and including a plurality of longitudinally disposed slabs of dielectric material having a front edge adjacent the leading edge of the radome; and a corresponding number of antennas disposed normal to the longitudinal axis of the radome and respectively embedded in or placed on the surface of each corresponding dielectric slab. Each antenna is located at a distance from the front end of the corresponding dielectric slab corresponding to a maximum of intensity in an intensity fringe pattern produced by interference between free space waves of a predetermined frequency incident upon the dielectric slab and waves guided by the dielectric slab in response to the incident waves. The thickness of each dielectric slab is tapered for reducing sidelobe levels in the far field pattern of the antenna.

Abstract: A lightweight single layer microstrip membrane antenna for space radar applications which, in an exemplary application, is adapted to be furled on a spool and carried into space by a space shuttle orbiter where it is easily unfurled to form an antenna. The membrane antenna includes gore sections which are connected by metal mesh members that are folded in the furling process to avoid folding of the gore sections. The metal mesh members may also act as primary power busses for suitable transmit/receive antenna modules that are connected to series strings. Current regulators and zener diodes are connected in the strings of antenna modules to provide for continued operation of the antenna in the event of failure of antenna modules.

Abstract: An air training evaluation process which corrects the position and velocity sensed by an aircraft's inertial navigation system (INS) to obtain more accurate data on the aircraft's position during an engagement.In carrying out the process the aircraft's on-board INS system is employed to obtain pre-flight data on position and velocity, data on position and velocity during the engagement, and post-flight data on position and velocity. The pre-flight data on position and velocity and the post-flight data on position and velocity are compared with independently determined data on the pre-flight position and velocity of the aircraft and with independently determined data on the post-flight position and velocity of the aircraft respectively to obtain pre-flight error functions and post-flight error functions on position and velocity.

Abstract: A drill employed for drilling holes in airframes is provided with means to rotate the drill bit during retraction and means to control the rate of retraction of the drill bit from the hole in a manner to prevent the formation of axial scratches in the wall of the hole.

Abstract: In a marine vessel for transporting liquefied gas at cryogenic temperatures, an improved support structure is provided for mounting the cargo tank in the hull of the vessel. The support structure includes a two-piece structure with a first upper annular skirt piece attached to and depending from the cargo tank at about the equatorial region. A second skirt piece is attached to and extends upward from the hull of the vessel and is proportioned to be received in a crotch formed between the outer surface of the tank and the upper skirt piece. The skirt pieces are mechanically joined to secure the tank within the hull.

Abstract: A C-shaped member having a threaded aperture formed through one end and a smooth surface aperture formed through the other end. A threaded rod extends through the threaded aperture with the threads of the rod mating relationship with the threads in the threaded aperture. The rod has a swivel member at its end located between the two ends of the C-shaped member. A roller staker comprising staking rollers at one end and a spindle at an opposite end is provided. The spindle is adapted to be located in the smooth surface aperture with the staking rollers located between the two ends of the C-shaped member and facing the swivel member. The spindle when located in the smooth surface aperture has an end portion extending through the aperture whereby it may be gripped by a portable drill and rotated for rotating the staking rollers.

Abstract: A vehicle-mounted passive synthetic aperture system for locating a source of electromagnetic radiation having a given wavelength .lambda.. The system includes first and second receiving antennas, a phase sensitive receiver and a signal processor. The first and second antennas are mounted to a vehicle and spaced apart from each other in the principle direction of motion associated with the vehicle. The first and second antennas respectively provide first and second received signals in response to electromagnetic radiation having the given wavelength .lambda.. The phase sensitive receiver is coupled to the first and second antennas and responds to the first and second received signals by providing a phase difference signal that indicates a phase difference that is proportional to the difference between the respective ranges from the first and second antennas to the source of the received radiation when the received radiation is radiated spherically from its source.

Abstract: A non-scanning heterodyne optical imaging sensor which utilizes a multi-frequency coherent light source to provide a plurality of points of different frequencies on a single detector on which the image of an object is also projected. Each point acts as a local oscillator which is sensed/filtered to construct the image of the object without mechanical scanning.

Abstract: A non-contact measurement system for determining the contour of an electrically conductive surface relative to a fixed reference point comprising a support arm journaled at one end to a bearing providing a fixed reference point and adapted to extend toward a conductive surface having a contour to be determined and a non-contact probe coupled to the support arm by a precision lead screw driven by a stepper motor which moves the probe either toward or away from the surface and which generates an electrical signal indicative of its axial position from an initial reference position. Control circuitry coupled to the stepper motor is operable to direct the stepper motor to extend the probe toward the surface until it reaches a predetermined distance from the surface.

Abstract: An electronic controller for an internal combustion engine provides a ratio control signal corresponding to a respective air/fuel ratio, and responds to an air flow signal, a fuel flow signal and the ratio control signal to control fuel flow as to make the ratio of air flow to fuel flow substantially equal to said respective air/fuel ratio. The ratio control signal is developed from a base run ratio control signal as modified in response to various parameters such as engine temperature, manifold pressure, idle, manifold vacuum, fuel temperature, wide open throttle, engine speed, and start. The controller also provides a speed-up circuit for promptly responding to change in air flow and dynamic braking for the fuel metering pump. The pump speed circuit includes a range extender.