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In aeronautical units (kts, km/h), this key shows the rate of change of airspeed (Rate CAS).
In pressure units (mbar, inHg etc.), this key shows the rate of change of pressure (Rate Qc)
In leak measure mode the display shows the current rate of change. In control mode this key
selects the fixed rate of change of airspeed (Rate CAS) of 300 kts/min or the equivalent rate
(Rt Qc) in pressure units/min.
Select [UNITS], from the main menu, to change between aeronautical and pressure units.
Use LEAK MEASURE/CONTROL to change between Control and Leak Measure mode.
K0260 Issue No. 8
Reference and Specification