Abstract: A slat and modulatable flap control system for an aircraft having slats in the leading edge of the wing and having flaps in the trailing edge of the wing. A detent pin on a control handle, and any one of four detent slots on a detent crank, can be engaged to selectively, and automatically, set the flaps and the slats (because of the cooperative action of other constituent components of the control system) in optimum positional relationship for takeoff/"go-around," cruising, approach, and landing of aircraft. The control system is ideally suited for aircraft used in "short takeoff-and-landing" situations.

Abstract: An inspection aid for use in the visual inspection, repair and repacking of parachutes including a pair of large opposed spaced side frame members of light tubular material having a shape approaching that of a cardioid. The frame members are parallel to each other and joined by a series of spaced transverse cross members which serve to maintain the shape and rigidity of the arch. In use, the parachute canopy is billowed open with a pedestal fan and the arch is carried into the open canopy and turned to the side. A person can then enter the open parachute and visually examine the canopy fabric and make required repairs after which the parachute is folded and reefed. The remaining gores are inspected and folded, the inspection arch is removed and the reefing is completed in the usual manner.

Abstract: A structural system for capturing, supporting, and releasably securing a tail ramp toe of an aircraft, while the aircraft is either on the ground or in flight. The preferred embodiment of the ramp toe stowage system is adapted for use with a cargo aircraft having: a downwardly and outwardly opening tail ramp, with at least one ramp toe removably attached to it; and, an upwardly and inwardly opening tail door that is complementary to, and aft of, the tail ramp, with the tail door having an internal surface. The stowage system is located over, and is attached to, the internal surface of the tail door, and includes two horizontally positioned tracks that accept complementary guide rollers which are on the side edges of the ramp toe, near the known center of gravity of the toe. Unlike the prior art, the system requires only one man to stow the ramp toe, or to release it from stowage, even while the aircraft is in flight.

Abstract: A holding assembly for impact sound stressing semiconductor wafers and the like including a novel fixture for securing the wafer across a sound tube by clamping between Teflon rings. A cover membrane is also secured across the sound tube to create a closed space defined by the sound tube, cover membrane and semiconductor wafer. Tungsten spheres located in the closed space bounce between the wafer and the membrane when vibrations are propagated in the sound tube for impact sound stressing the semiconductor wafer.

Abstract: Fine diameter wires especially suited for high temperature filaments are physically and electrically held in simple cylindrical connectors by lining the inside of the connector with a closely wound wire coil, inserting the fine wire into the center of the coil, and lightly crimping the outer surface of the connector until the filament wire is electrically joined to the connector and firmly held therein without the filament being weakened or excessively stressed.

Abstract: A mechanically deformable heat transfer fin for installation in a hollow cavity of a large complex elongated extrusion to improve heat transfer characteristics without brazing welding or glueing. Since the required design cannot be obtained with the transfer fins as an integral part of the extrusion using presently known techniques, a separate fin insert of slightly smaller dimensions than the hollow opening of the large extrusion is installed therein. The insert includes a plurality of legs and an internal pressure cavity which can be sealed off at both ends with pressure cap fittings secured by tie rods. After installation in the extrusion, pressure is applied to the inner chamber until the legs of the insert move outward and contact the inner surface of the extrusion walls. The pressure is raised until the relatively thin walls of the insert are permanently deformed so that, when the pressure is relieved, the insert is held fixedly in place.

Abstract: A catadioptric objective lens system that has a field of view of 10.degree., and that will provide: a large relative aperture of 1.28; optimum performance in the S-20 spectral range; and, maximum light throughout the region of apertures for exactly the 10.degree. field of view.

Abstract: A sling arrangement including custom made attachment plates each with a plurality of holes therein and a cable attached therebetween for use with a portable hoist to hold the weight of a propeller pump housing while it is being removed and/or installed on an aircraft. The arrangement permits one person rather than two or three to install and/or remove the housing unit safely with a minimum of effort without danger of strain. By rotating the attachment plates 90.degree., the sling can be used to service the pump housing of a second series of propellers.

Abstract: A socket lug assembly for attaching bombs and the like to bomb racks and/or other attachment points on an aircraft. A spring-loaded spindle locks multiple spheres in place securing the lug with attached store. An externally operated lever moves the spindle to the release position when activated allowing the spheres to move inward, freeing the lug to fall away from the attached assembly. The spindle is held in the release position by a spring-operated sear. When the next store is loaded, the lug urges the sear out of the spindle detent allowing the spindle spring to force the spindle to the "lock" position securing the lug with attached store to the rack.

Abstract: An automatic detachable charging head for use with a check valve in operative communication with the charging head to allow gases therefrom to flow into the tank and a pressure safety release mechanism to prevent over pressurization. The detachable charging head fits onto the pressure storage container and includes a cartridge containing gas producing material. In the automatic embodiment of the invention, the detachable charging head includes a belt for feeding the cartridges into a firing breech contained therein and a pressure sensing switch in the pressure tank for causing the belt to stop feeding and the cartridges to stop firing when the tank pressure reaches a predetermined desired value.

Abstract: A structurally compact fuel-to-air heat exchanger, for a gas turbine engine, that permits a lower percentage of cooling air, than is presently needed in the art, to cool effectively the hot turbine, and its parts, of the engine. The heat exchanger includes: a plurality of flow tubes through which cool combustor fuel flows, with the flow tubes in a crossflow relationship with and to the hot flow of cooling air; an air manifolding and flow-directing system; and, a fuel manifolding and flow-directing system. The heat exchanger is uniquely disposed internal of the gas turbine engine, within the fire safe cavity, which is ventilated.

Abstract: A muzzle clamp assembly, adapted for use with a multi-barrel gun of the Gatling type, for predictably controlling the dispersion, i.e., the impact point of projectiles fired from the multi-barrel gun. The assembly is removably attached to the forward end, i.e., the muzzle end, of the barrel cluster; and, it includes a perforated cylindrical clamp member, a plurality of movable and removable clamps, and a removable perforated front plate with the perforations at positions preselected to effectuate the desired controlled dispersion. These components are assembled and integrated in an untightened condition; are slipped over the muzzle end of the cluster of barrels; and, the movable clamps are tightened to the barrels, while the front plate is tightened to the clamp member. This front plate thereby positions the muzzles of the barrels to effectuate the preselected desired controlled dispersion of the fired projectiles, such as a dispersion pattern of 360.degree. about a theoretical focal point.

Abstract: An aid in penetrating hostile radar defenses by forming target images that are false in size and configuration. The inventive device includes: a cone-shaped deep penetrating forebody with an orgival nosetip; a bellows-fold, expansible, cylinder-like shaped, tethered radar signal reflector bag connected to the aft end of the forebody and carrying a plurality of circumferential crown reflectors along its length, and a cannister lined with a plurality of sabots to house, hold and support the payload (i.e., the forebody and the connected radar reflector bag) until the payload is launched and is separated from the cannister and the sabots.

Abstract: An assembly for mounting, supporting and releasably holding a vertically positioned aerial photography camera, and an angularly adjustable obliquely positioned aerial photography camera, in an aircraft having a downwardly and outwardly opening ramp to which the assembly is removably attached, and also having an upwardly and inwardly opening tail door, where the ramp and the door are openable and closeable during flight of the aircraft. The assembly includes: a lower member subassembly in the form of a rectangular frame; and, two upper member subassemblies, each of which carries one of the cameras. These upper subassemblies are rectangular-like in form and are detachably connected to, and slidably movable horizontally above, the lower subassembly. In flight, with the ramp and the door open, the upper assemblies are separately extendable beyond the ramp, and aerial photographs may be taken.

Abstract: An armor piercing projectile configuration which provides strength, rigidity and mass properties sufficient to permit long thin armor piercing cores to be fired from guns in a stable and accurate manner. The core is supported at both ends in such a way that a monocoque skin or shell provides rigidity and the space between the core and the shell is filled with rigid material or structure so as to support the core throughout substantially all of its length. The shell is of relatively high density adding to the lateral/transverse moment of inertia ratio to provide gyroscopic stability for the long thin core.

Abstract: A reciprocating pump having a piston completely enclosed by and moving within a cylinder. The pumping action is provided by the interaction between a magnetic component embedded in the piston and an external varying magnetic field produced by a permanent magnet, solenoid, etc. The necessary back-and-forth motion is produced by momentarily offsetting the gravitational force by the spatial driving or time variation of the magnetic field and a suitable combination of valves is provided to control the fluid flow through the cylinder.

Abstract: An improved spark igniter for use in a gas turbine engine wherein vent passages which are in the vicinity of the electrode are placed in communication with the ambient environment external to the engine during the ignition sequence causing fuel-air mixture to flow over the electrode as it is abstracted from the engine, thereby enhancing the probability of ignition.

Abstract: A transponder illuminated by broadband optical radiation which is reflected back towards the illuminator by means of corner reflectors. In front of the corner reflectors are placed a plurality of narrow band filters which define the communication channels. The return signal will consist of the activation of a number of discrete channels corresponding to the number of filters used. The system is not restricted to the visible spectrum permitting infrared and ultraviolet radiation to be used to provide a covert communication system.

Abstract: An incendiary projectile having a plastic jacket made from glass reinforced Nylon, a mischmetal/aluminum core and a Teflon tip is actuated by kinetic energy on impact with the target. The mischmetal/aluminum core is octagonal in configuration and is composed of a pyrophoric alloy containing 87% mischmetal and 13% aluminum. The Teflon tip provides greatly increased effectiveness against targets of aluminum construction especially those containing aircraft fuel and the like.

Abstract: A pressurized storage tank including a chamber in the base thereof for holding a cartridge containing gas producing combustible material which is discharged by causing a firing pin to strike a primer. A check valve in communication with the chamber and tank interior allows the gas from the discharged cartridge to flow in one direction only, from the chamber into the tank. A safety blowout plug prevents over-pressurization and appropriate gauges are provided to measure the internal tank pressure and the outlet line pressure.