Dynon Avionics EFIS-D10A Pilots Users Guide - Manual (Page 53)

HSI Operation
4. Bug indicator. This user-settable bug also appears on the EFIS heading
tape. Colored yellow, it can be toggled on and off using the HSI menu
or the main EFIS menu.
The HEADING knob on the HS34 always controls the headin
displayed switches the bug to the on sta g bug. Turn
te. Press the HEADING knob to s
ays
absolute wind speed. Below that, labeled as "XW" is the crosswind component of the wind. Wind data is
calculated while in stable flight with very little turn rate. It uses the GPS ground speed and track to compare to
the magnetic heading and the true airspeed that the EFIS calculates. In order for winds to be correct, the
airspeed, OAT, and compass on the EFIS must all be accurate.
ing the knob when the bug is not
ync the bug to the current heading.
6-4 EFIS-D10A Pilot’s User Guide
5. True Airspeed Indicator. If it is possible to calculate true airspeed on the device then it is displayed here. In
order to do this the device must have access to an outside air
temperature from an EFIS or an EMS.
6. Winds aloft. This indicator, located at the bottom of the HSI page, appears only when you have GPS data and
true airspeed available to the instrument. The arrow is the wind direction relative to your aircraft. It is alw
the same size and only indicates wind direction. The numbers below are absolute wind direction (magnetic) and