Abstract: The method proposes utilization of an alkali bath for surface treatment of titanium or titanium alloy parts, the bath being comprised of an alkali hydroxide, a titanium complex forming component, and an impurity ion-complex forming component. The bath can be alternatively applied by a simple dipping procedure or as a part of an anodizing process.

Abstract: A terminal case for straight or angled off cable configuration as it extends from a plug connector, particularly for use in aircraft, is provided to have an integral or separate threaded ring and a transition piece of open cross section having sector-like contour, the sector angle decreases away from the ring towards a cable catch. The purpose thereof is to increase the strength of the configuration so that even if the parts are made of synthetic, strength values become comparable with known terminal cases made of metal.

Abstract: A mechanically operable actuating device for opening towards the outside and closing a cargo hatch or freight door in the fuselage of an aircraft comprises two hinges for connecting an upper side of the door or hatch to the fuselage; a first swivel joint floatingly mounts the upper end of a coupling member to a reenforcing part in the upper portion of the hatch or door; a second swivel joint floatingly connects a rocking arm to a hatch or door frame of the fuselage; a third swivel joint connects the rocking arm to the lower end of the coupling member; a fourth swivel joint connects one end of a gas pressure spring to the rocking arm so that the spring extends substantially parallel to the coupling member; and a fifth swivel joint connects an opposite end of the spring also to the upper end of the coupling member.

Abstract: Light conductive fibers being embedded as crack monitors in reinforced compound material are protected as follows. During laminate assembly the fiber ends are slipped into relatively short teflon hoses but being provided to be at least in parts embedded in the compound parts to be made; the ends of the hoses that will be embedded are closed with a cold curing laminate resin; the fiber ends with enclosing teflon hoses will be threaded through laminate openings during assembly of the lamination, and the fiber ends with projecting hoses are also inserted in a conical bore of an assembly device; open areas and portions of the compound part adjacent to the conical bore of the assembly tool are filled with laminate resins; a protective cover is then placed onto said bore and over the teflon hose protected fiber ends prior to curing of the part; and the thus prepared part is cured in an autoclave.

Abstract: An aircraft with no separate elevators in the tail end of the fuselage and having wings arranged approximately in the middle portion of the fuselage, is improved by a single flap on the underside of the wings for extending down to a variable degree and being arranged at a point between 49 and 54% of the local chord depth as measured from the leading edge.

Abstract: An actuation device for a slat, a rail for guiding and moving the slat into and out of an aircraft wing has the slat pivoted on the rail in a particular point (8); a thrust rod has one end hinged to the slat and a drive crank is connected to a second end of the thrust rod; a lever assembly connects the rail additionally to the slat at points on the rail and the slat different from the particular point and for pivoting and steering the slat relative to the particular point, for holding the rear end of the slat against the wing in a first protraction range and opening a gap upon further protraction.

Abstract: A method of navigation and serial guidance under utilization of elevational data correlation, wherein a correlator compares terrain specific elevational reference data, with actually acquired and processed altitude data, is improved by using a millimeter wave sensor operating in the atmospheric window of about 94 gigahertz; and being operated during cruising by back and forth scanning in a substantially vertical down direction across a prescribed flight path; occasionally the sensor is pivoted about a horizontal axis, for scanning in the forward direction in a forward search mode for purposes of target acquisition.

Abstract: Decompression in a partition separating passenger from cargo compartments in aircraft, there being a particular opening in the partition, receiving a decompression blowout/in panel; a frame circumscribes the decompression panel and has an outer contour inserted into the panel opening, one side of the frame is provided with a flange, being sealed as against the decompression panel as well as against the partitions adjacent the opening, the other side of the frame is provided with a plurality of T-shaped holding springs engaging the partition as well as the decompression panel; each of the springs is provided with predetermined fracture points.

Abstract: A flap system along the trailing edge of a transonic aircraft wing which system includes segments arranged in span direction, a driving system for protraction and retraction of the segments includes a plurality of spindle drives connected to the segments such that each segment is connected to at least two spindle drives; are controlled the spindle drives in such a manner that at least some of the drives are independently controlled from each other so that the segments can pivot on vertical axes, in addition to a regular pivoting about respective horizontal axes.

Abstract: The circuit includes a master control circuit and individual control circuits for each storage location which are linked in such a manner that organized transport of freight is made possible in both directions; a manual control override disables the automated transport to permit manual transport of containers without impediment by the control circuit.

Abstract: Adjusting device for landing flaps covering a gap between a landing flap or flaps and a wing proper there being a driven torsion shaft for driving the flaps, whereby particularly a transmission gear is drivingly coupled to the torsion shaft and includes a reducing gear and a gear segment being bidirectionally driven by the gear; a slotted cam is connected to and driven by the segment gear; a pair of levers with scanning elements is operated by the cam on rotation thereof; tension-compression rods are respectively linked to the levers such that the rods are operated in opposite direction; and a pair of elbow levers respectively connect the rods to two wing flaps such that the rods are tension loaded then compression loaded by the aerodynamic forces acting on the wing flaps.

Abstract: Aside from certain immediate preparatory steps, the parts are primer coaated and cured on surface parts from which that coating may have to be removed but for which that coating serves as protection; other surface parts are primer coated and the coating is just dried. Following some preliminary assembly of parts the latter surface parts are then painted or lacquered. After completion of assembly the cured coating is chemically removed by a thickened, 20:1 blend of sulfuric acid (H.sub.2 SO.sub.4) and nitric acid (HNO.sub.3).

Abstract: In an apparatus for cutting flat stock such as foil, strip, fiber-reinforced ribbons, or the like, a support structure for the stock to be cut includes two endless chains running parallel to each other at a fixed distance from each other; the chain link members are provided each with holding elements for uniformly distributed pins; steel strips or wires loop around the pins and extend across the space between the two chains establishing a support surface for flat stock, the strips or wires are oriented so that respective thin edges face a cutting tool.

Abstract: Weight compensation for hinged doors, hatches, gates, or the like, which swing up and down on an upper horizontal hinge axis, comprises a torsion rod extending parallel to the hinge axis and having hollow shafts or bushings at its respective ends, one of the bushings is connected through a lever and a continuously length adjustable rod to the frame and on one side of said door, hatch, or gate, the other bushing is mounted to a lever, and a continuously adjustable tensioning screw fastens that lever to the door, hatch, or gate, and at the other side thereof.

Abstract: Flaps mounted on an carriage are being protracted and retracted in relation to a aircraft wing of which the flap is a part by a drive mechanism which is to be provided for variable torque and torque limiting and, if necessary, fixing and holding the position of the flap and its drive carriage in case of failure. A branching gear is driven for the common shaft which drives the flaps of one wing and there are separate transmission paths which include in each instance output shafts from the branching gear, crank drives and thrust rods. One of the thrust rod is directly connected to the flap carrying carriage and the other one indirectly through a load switch and a connecting rod; in addition one of the output shafts of the branching gear is lead into a delta alpha brake having as a second input, the output of the principle drive shaft. The delta alpha brake stops motion of the flap carrying carriage in case there is an angle difference among its input shafts that exceeds a particular limit.

Abstract: A hollow sphere is made of a superplastic material and blown to a large size, unrestricted or with restriction in one or two directions. The unrestricted hollow sphere may be rotated while being blown.

Abstract: Optronic tracking and guiding instruments are maintained in a readiness state by simulating various conditions including mechanical loads and, possibly, temperature variations for obtaining a set of corrective data which is then used for compensating possible errors during a real live mission. The compensation involves particularly focusing and exposure time control.

Abstract: An arrangement for detecting cracks within a construction or structure part made of multiple lamina in a compound fashion and wherein at least some of said lamina are made of fibres, being at least partially embedded in synthetic resin, includes light conducting fibres in said lamina taking the place of regular ones of said fibres within a pattern of such fibres either as part of the weaving pattern or as particular interposed layer.

Abstract: A flap is pivotally mounted on a roller that runs in a track; a three point control lever has one point connected to the roller, a second point to the front of the flap, and a third point is variably connected to a turning lever that drives the flap. The variation is obtained either by providing a secondary lever on the turning lever to obtain a cycloidal path, or a spindel drive just varies the distance between the third point of the control lever and the axis of the turning lever. The turning lever is hollow to accommodate the drive elements for the third point variation.

Abstract: A method for locating signal sources, particularly sound signal sources, is suggested using several spacially separated sensors whose output signals are processed in order to detect noise and to eliminate such noise under utilization of a normalizing factor, the normalizing factor considers particularly those frequencies which, for one reason or another, are uniquely attributable to noise.