Percent Power on a Piper Aircraft Flying the aircraft a little rich may not show percent power. The DAU must have good signals from the following: MAP RPM FUEL FLOW OAT PRESSURE ALTITUDE You can verify all but the Pressure Altitude by just insuring you Have them displayed on the MFD Engine Page. The…
% Power display on EX5000 MFD % Power—Indicates the calculated percent of maximum rated power currently being produced by the engine. For SIU equipped aircraft, Percent Power is calculated by the EX5000 based on engine RPM, manifold pressure, outside air temperature, and fuel flow. For DAU-equipped aircraft, the %…