Multi-Engine Indications (Optional); Propeller Sync Indicator - Garmin G3X Touch Pilot's Manual

EIS
Engine Power will display as a percentage for most typical Lycoming/Continental
style engines.
For the Lycoming iE2 FADEC engine, the Engine Power indication can additionally
show "PFT" while the FADEC is performing a pre-flight test.
For the Rotax 912iS FADEC engine, the Engine Power indication doesn't show a
percentage. Instead this indication has one of two functions. If the FADEC is operating
in economy mode, the Engine Power indication shows "ECO." Alternatively, while
the aircraft is on ground and the engine is not running, the Engine Power indication
instead shows the throttle position, noted as a two-digit value preceded by a "T", such
as "T10" for 10% throttle. This is used for the aircraft's pre-flight checklist. Otherwise,
the Engine Power indication will be blank.
For the Rotax 915iS FADEC engine, the Engine Power indication shows engine
power as a percentage when the engine is running. While the aircraft is on the ground
and the engine is not running, the Engine Power indication instead displays the throttle
position, noted as a two-digit value preceded by a 'T', such as 'T10' for 10% throttle.
This is used for the aircraft's pre-flight checklist.

3.2 MULTI-ENGINE INDICATIONS (OPTIONAL)

PROPELLER SYNC INDICATOR

In Multi-Engine installations, a Propeller Sync Indicator is displayed on the
Tachometer. The indicator spins in the direction of the higher-speed propeller when
the propellers are out of sync.
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Garmin G3X Touch Pilot's Guide 190-01754-00 Rev. L