Altair Glide Computer and Navigation System User Manual download pdf (Page 24)

 XCSoar has a number of InfoBoxes which

indicate how well you are flying

 “Speed ground” shows your ground speed, in

km/h (12.2)

 “Percentage climb” shows the proportion of time

spent thermalling (12.6)

 “Task cruise efficiency” shows your cruise

efficiency compared with optimal MacCready

performance, although what this actually means

is not explained (12.6)

 “Speed task achieved” shows your task speed, in

km/h (12.8)

 “Task progress” displays a clock-face indicator

f progress through the task (12.8)

 “Speed task last hour” shows your average

cross-country speed over the past hour, in km/h

(undocumented)

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Altair Glide Computer and Navigation System User Manual Page 24