Abstract: In an aircraft having two engines, a pilot's master control throttle assembly for selectively operating one or both engines and configured to allow for synchronization of the engines using only the master control throttle, the master control assembly has a master throttle lever with a fixed carriage pin extending laterally therefrom which engages detents located in separate slave throttles for each engine. The detent in one slave throttle is a snug fit around the carriage pin, releasably locking it to the master throttle, while the detent in the other slave throttle is elongated, allowing for engine synchronization by movement of the carriage pin within the range of the elongated detent. The slave throttles are spring loaded and can be selectively disengaged from or engaged to the master throttle.

Abstract: Stretch-wrap forming of titanium parts or the like by resistance heating the part and a steel forming element which is cast into a fused silica die insert. Heating is accomplished by an electrical circuit in which both the part and the element are connected in parallel. The part is stretch wrapped over the element while a low voltage, high amperage current is allowed to flow through both the part and the element.

Abstract: A control system for suppression of shock-induced flow separation caused by the interaction of turbulent boundary layer air and a strong normal shock in the air inlet of a supersonic aircraft by application of continuous bleeding upstream and across the shock boundary layer interaction region of the inlet through a porous cover which leads to a row of plenums from whence the bleed air is exhausted to atmosphere, through a controlled incrementally operated door. The control system can control interactions with normal shock strength approaching Mach=2 in strength.

Abstract: The method of purging entrained air or vapor from fuel stored in two or more tanks in an aircraft, and more particularly in multi-engine aircraft during crossfeed fuel delivery when the aircraft is climbing to altitude, which method consists of reversing the fuel booster pump, or pumps, in the temporarily unused tank, or tanks, while all fuel is withdrawn from one tank to supply the engines, whereby the fuel agitation produced by the reversed pump or pumps effectively frees the entrained air or vapor from the fuel to escape to atmosphere through the fuel tank vent system.

Abstract: A control airfoil such as a wing flap is provided adjacent its leading edge with a plurality of parallel blowing slots extending spanwise of the flap and leading from a plenum in the interior of the flap, the plenum being supplied with high pressure air and the slots being so arranged in airtight relationship with the trailing edge of the wing that the slots are serially uncovered in a cascade arrangement, as the flap is deflected continuously downward from its neutral position, to blow a cascade of high pressure air rearwardly in successively small angle increments over the upper surface of the flap to continuously re-energize the boundary layer air thereon and thereby increase the coefficient of lift during landing of the aircraft by permitting extreme flap angles to be used.

Abstract: A Luneberg lens with a polarization-sensitive spherical "leaky" reflector cap having conductive strips aligned at a 45.degree. angle to the linear polarization of the incident wave. The ratio of strip width to strip spacing is preferably chosen to reflect back a cross-polarized component about -10 db below the reflected self-polarized component. The strip width is small as compared to the focal spot diameter of the lens for any given incident wave direction and also small as compared to the wavelength of the incident wave. The lens and reflector can be used in small drone aircraft to simulate the radar cross section of a larger body such as an aircraft whose radar cross section causes reflected polarization components not present in the incident field. The full specification must be consulted for an understanding of the invention.

Abstract: Integrated circuit chips are mounted in electronic assemblies with the chip terminal pads "up" or on the opposite side of the chip from the substrate of the circuit board. The lower chip surface is bonded either directly to the heat-conducting substrate or through an intermediate pedestal of a good heat-conducting volume of metal. Beam leads from the integrated circuit terminals are bonded to relatively large heat-conductive posts acting as spacers, if necessary, between the beam leads and the circuitry pattern.

Abstract: Pressure relief louvers for preventing damage to a combat aircraft in the event of an explosion resulting from an accumulation of gun gases in the gun bay. The pressure relief louvers are flush mounted relative to the aircraft outside surface and are hinged along their lower edges longitudinally of the aircraft, in the gun bay door. They are normally held closed by magnetic action, opening only as the result of a high pressure buildup within the gun bay. The normal upward component of in-flight air flow over the gun bay doors closes the louvers after the internal pressure subsides.