Attitude Indicator Comparator Warning System.
DEPARTMENT OF THE AIR FORCE WASHINGTON DC
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The patent concerns the indications of attitude indicators at two different indicating locations that are indicating the same parameter but actuated from different sources, are monitored for the same indication by electrically interconnecting two transolvers that are mechanically coupled to the respective attitude indicator at each location. A monitor, at one indicating location, furnishes the excitation for the transolver at the other location and by the magnitudes of the sine and cosine outputs of the local transolver furnishes flag indication of any system defects of either indicator at each location.
- Flight Control and Instrumentation