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Flight tests conducted by the Army and Navy have demonstrated the utility of the Tactile Situation Awareness System (TSAS) as an adjunct to visual instruments to improve pilot performance in degraded visual environments or under conditions of high workload. The tactile stimulators (tactors) used in each of the flight tests have been incorporated into aircraft components (seat cushions and shoulder straps) and a torso garment (belt or vest). Current tactors must operate at full magnitude and a very restricted frequency range (240 to 250 Hz) in order to provide consistent and perceptible stimuli in the aviation environment. Fortunately, recent developments in piezoceramics permit the frequency of tactors to vary from 50 to 500 Hz. This wider range of tactor stimulus frequency has significantly increased the available information content for tactile cueing systems. Several recent tests of TSAS will be presented to include additional capabilities that can be expected as piezoceramic tactors are incorporated into tactile designs.