The Engine Monitoring Unit (EMU) is a digital recording device within the engine RPM governor control box. The EMU continuously monitors engine and rotor speed, engine oil temperature, cylinder head temperature, manifold pressure, ambient pressure, and outside air temperature. EMU data can be downloaded to a computer with the appropriate software. Current exceedances may be reviewed (but not reset) on an Apple mobile device using the application available through the Robinson website (provided below). The EMU is intended to be used only as a maintenance aid. It remains the pilot’s responsibility to report any observed exceedances.
