Abstract: A radar jamming signal generated by equipment carried by a target aircraft, is launched onto the leading end of a towed single wire transmission line so as to travel the length of the line as a nonradiating surface wave. A drogue radiator is attached to the trailing end of the line for radiating the jamming signal transversely of the towed line so as to be received by and cause jamming of tracking and/or fire control radar. The length of the single wire transmission line is selected so that the trailing radiator causes the jamming signal to emanate from a position sufficiently behind the aircraft so as to be outside the destructive radius of weapon fire directed at the apparent source of the jamming signal by fire control radar. A ventriloqual-like deception of the radar is thus achieved.

Abstract: The present invention provides a non-contact test apparatus and method for evaluating an as-manufactured railway wheel, which apparatus has a plurality of non-contact sensors positionable in proximity to various wheel locations and coupled to a controller for communication of a plurality of sensed dimensional parametric signals for comparison to specified wheel reference parameters in the controller to thereby simultaneously evaluate several dimensional parameters and characteristics for qualification of a railway wheel satisfying AAR specifications for railway wheels.