Boeing 737 NG aircraft engine gauges showing TAT or Total Air Temperature, CRZ is the Thrust Mode Indicator showing Cruise, N1 is the speed of the first stage engine compressor, N2 the speed of the second stage, EGT is exhaust gas temperature, FF is fuel flow and VIB is engine vibration.  Part of the Boeing 737 NG or Next Generation CRT 'Glass Cockpit' instrumentation.
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