Maccready, Ballast And Bugs Settings; Map Settings - LXNAV LX80XX User Manual

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6.2.1.1

MacCready, Ballast and Bugs Settings

These are probably the settings pilots use most often during flight. Press the MC/BAL
button. The dialogue for MacCready, ballast and bugs will appear.
Use the PAGE selector knob to modify the MacCready setting. In the middle button there is
a suggestion for the MacCready setting which is based on the last four thermals.
Additionally to the selected MacCready value an wing loading is also shown together with
the calculated glide ratio with corresponding speed.
You will notice that the MacCready value displayed on the final glide symbol is
coloured yellow or red. The coloured value indicates that your MacCready value
is too low corresponding to the current wind and selected target. Increase the
MacCready value.
Pressing the CLOSE button will close the dialogue and return to the navigation page.
Changes will be saved. The dialogue will automatically be closed after 10 seconds if no
action is taken.
Pressing the BAL button will toggle the menu from MacCready setting to Ballast setting.
Ballast is entered in values which are defined in the Units menu (see Chapter 5.1.9.5). You
can set the load for an empty glider by pressing the Empty button. When parameters for
water dump rate are given, DUMP button will appear. Press DUMP button, when you open
water valve. System will automatically count down amount of water being released. Once
you close water valve, press STOP button. This calculation is working only, when all weights
are properly entered. (See also chapter 0).
You can also wire digital input to water valve. In this case count down will
automatically start and stop. See also chapter 5.1.11.1.4 for more details, how to
define digital input.
Pressing the BUGS button will toggle the menu again from Ballast setting to Bugs setting.
A bug setting is used to set polar degradation due to a dirty wing.
percentage degradation of glide ratio (5% means glide ratio degradation is 5%). Pressing
CLEAN will set bugs instantly to zero. MC will return to the MacCready screen.
6.2.1.2

Map Settings

Map can be quickly configured using this dialogue. Select map orientation in the orientation
setup.
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Version 6.03, May 2017
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