Good Afternoon,
Here is some additional information for anyone who may be interested. Using G3X Touch Advanced Gauge Configuration to alert the pilot to a Vfe exceedance requires either a flap position sensor, or a dedicated discrete input which activates when the flaps are in the extended position ("Flaps Down" Discrete Input Preset).
In this example, we make use of a flap position sensor. When the aircraft is flown beyond than the installer configured airspeed threshold with the flaps extended, the flap position gauge is shown in red, and a flashing red Crew Alert Message is issued, alongside an audible alert.
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To create this alert, the existing flap gauge configuration can remain unchanged while a few new configuration items are set, as outlined below.
- Add a new gauge marking to the General Position Input that is configured for the flap position sensor, and assign it to an Invisible Range. Set the minimum and maximum to the desired range. In this example we will use 1-22 degrees. Change the mode to Set Logic Signal and select an unused Logic Signal number.
View attachment 45178
- Add a second new gauge marking to the same GP input, and assign it to Red Range + Alert. Set the Minimum and Maximum to the same range used in step 1. Change the mode to Require Logic Signal Set and select the same Logic Signal number used in step 1.
View attachment 45179
- From the Engine and Airframe configuration menu, touch the Settings tab at the top of the screen. Touch Logic Signals. Touch the Logic signal number used in steps 1 and 2. Assign an airspeed threshold as desired. In this example, we used 82 knots IAS. A delay can optionally be assigned, in this example we used a 5 second delay.
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- As a result of this configuration, the Vfe Exceedance alert will be active anytime the flaps are between 1-22 degrees and IAS is above 82 KIAS, with a 5 second buffer to avoid nuisance alerting.
This is a very specific example of how the advanced gauge configuration function can be used. Any of the parameters used above can be modified to meet an individual installers needs. Much more information is provided in the G3X Touch installation manual, Appendix I and Section 30.4.32.27 - Advanced Gauge Configuration. The latest installation manual can be downloaded
here.
Thanks,
Justin