User manual

XCSoar User Manual
situation, XCSoar can be instructed to ’abort’ the task, and it will
then help you reach a safe landing site.
To abort/resume the task, press
NAV . Abort task
When in abort mode, whatever cross-country task was being flown
is discarded. The task waypoint list is then filled with nearby land-
ing points, ordered by the estimated arrival altitude at best glide
angle with the safety MacCready ring setting, adjusted for wind.
The first waypoint in the list is therefore the most reachable way-
point.
The configuration option ‘Abort use current Mc’ determines whether
waypoint arrival heights in abort mode uses the MacCready value
prior to aborting the task, or if the safety MacCready value is used.
If this is false, the Mc value used to calculate arrival heights in
abort mode is the safety MacCready value. Default is to use the
safety MacCready value. When switching to abort mode, the Mac-
Cready setting is set to the safety value if it is lower than the cur-
rent setting.
When no land-point is reachable, then the nearest 10 landable
points are shown.
When at least one land-point is reachable, then only the reachable
land-points are shown.
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