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Outside Air Temperature (OAT) Gauge

 Outside Air Temperature (OAT) Gauge

  • The outside air temperature (OAT) gauge is a simple and effective device mounted so that the sensing element is exposed to the outside air.
  •  The sensing element consists of a the bimetallic-type thermometer in which two dissimilar
  • materials are welded together in a single strip and twisted into a helix.
  •  One end is anchored into a protective tube and the other end is affixed to the pointer, which reads against the calibration on a circular face.
  •  OAT gauges are calibrated in degrees °C, °F, or both.
  •  An accurate air temperature provides the pilot with useful information about temperature lapse rate with altitude change.

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