User manual

XCSoar User Manual
if there are restrictions on its use. Other than comments, the file
must contain a single row of numbers separated with commas:
• Mass dry gross weight in kg: this is the weight of the glider
plus a ’standard’ pilot without ballast.
• Max water ballast in liters (kg)
• Speed in km/h for first measurement point, (usually mini-
mum sink speed)
• Sink rate in m/s for first measurement point
• Speed in km/h for second measurement point, (usually best
glide speed)
• Sink rate in m/s for second measurement point
• Speed in km/h for third measurement point, (usually max
manoeuvring speed)
• Sink rate in m/s for third measurement point
An example, for the LS-3 glider, is given below:
*LS-3 WinPilot POLAR file: MassDryGross[kg],
* MaxWaterBallast[liters], Speed1[km/h], Sink1[m/s],
* Speed2, Sink2, Speed3, Sink3
373,121,74.1,-0.65,102.0,-0.67,167.0,-1.85
Don’t be too optimistic when entering your polar data. It is all
too easy to set your LD too high and you will rapidly see yourself
undershooting on final glide.
12.8 Profiles
Profile files (extension .prf) can be used to store configuration
settings used by XCSoar. The format is a simple text file con-
taining <label>=<value> pairs. Certain values are text strings
delimited by double quotes, for example:
PilotName="Baron Richtoffen"
All other values are numeric, including ones that represent boolean
values (true= 1, false= 0), for example:
StartDistance=1000
All values that have physical dimensions are expressed in SI units
(meters, meters/second, seconds etc).
When a profile file is saved, it contains all configuration settings.
Profile files may be edited with a text editor to produce a smaller
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