Abstract: A VOR/ILS antenna system for rotor aircraft eliminates rotor modulation of signals without varying rotor speed. The system comprises one or more loop antennas each having one or more closed loop windings mounted on the aircraft in a generally horizontal plane and having a conductive shield covering the windings and dielectrically separated therefrom and having a small gap breaking the continuity thereof. A dual loop VOR/ILS system for helicopters is particularly disclosed wherein the pair of loop antennas are mounted in a horizontal plane on opposite sides of the central vertical helicopter mast extending upwardly between a pair of cowling members in which the antennas are disposed. Each antenna has a gap in the shield facing inboard and a connection point for the windings opposite the gap and outboard.

Abstract: An interconnection system for coupling electrical and air pressurized conductors carried by an aircraft wing and a missile pylon mounted on the wing. The interconnection system provides a rapidly releasable positive lock between the pylon and the wing.

Abstract: A circuit for eliminating pulses of a minimum predetermined period including a pulsed current source for charging an integrating capacitor, the potential of which is sensed by a threshold detecting circuit. The connection between the current source and the integrating capacitor is selectively controlled by a pair of complementary field effect transistors responsive to the signal including the narrow pulses. The minimum pulse width is determined by a number of device design parameters as well as an externally applied oscillation frequency.

Abstract: A basketball training device having a support hoop of essentially the same diameter of the conventional hoop to circumferentially mate with same; a secondary hoop of larger diameter relative to the conventional hoop; arms for attaching the support hoop to the secondary hoop; and clamps for removably connecting the support hoop to the conventional hoop. A method for improving the shooting accuracy of a basketball player comprising positioning the secondary hoop with the portion nearest the backboard tangential and coplanar with the conventional hoop, and with the portion opposite the backboard projecting upwardly and outwardly from the conventional hoop.

Abstract: A free expansion nozzle for gas dynamic lasers having a multitude of finely divided free expansion sites. These sites may be in the form of a plurality of minute openings within a plate, or minute spacings between adjacent cylinders, or in the form of a small mesh screen. In any case these expansion sites may be situated within the nozzle section of a gas dynamic laser, thereby providing an easily fabricated, economical means of producing a lasing medium within the optical cavity of the laser.

Abstract: A combined fender and splash guard for a motorcycle comprises a single member injection molded of polypropylene and has a main fender portion and at least on splash guard integrally formed with the fender. The fender and splash guard can be doubled back on itself in a collision or spill without damage. Means are provided to attach the fender and integral splash guard to the motorcycle.