The G1 GEM offers the basic monitoring
features for EGT/CHT/TIT and CT (Carburetor Temperature) as the other G-series GEMs but not the advanced leaning features (that require
real-time fuel flow data).
All EGT/CHT/TIT/CT data is continuously displayed in colour-coded bar-graph and numeric form, but neither
mixture lean-of-peak (LOP) nor rich-of-peak (ROP) indication is provided. Leaning boxes do appear following peak-EGT events but the delta
temperature number inside each leaning-box only shows the magnitude of temperature drop.
The LOP or ROP mixture status must be
determined by the pilot by knowledge of which direction the mixture control was moved following a peak-EGT event. Moving the mixture control
to increase fuel flow after finding peak EGT will result in a ROP condition, and moving the mixture to reduce fuel flow after finding peak
EGT will result in a LOP condition.
Users of the G1 GEM should disregard references to GEM fuel flow indications in this manual.
Similarly any feature that requires use of the rotary control knobs or user configuration screens is not available on the G1 GEM and should