wiki:DefinitionList

Version 3 (modified by Stein Tore Erdal, 12 years ago) (diff)

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Definitions

There is some confusion about the different terms used when describing tasks and scoring of hang or paragliding competitions. FS will try to stay as consistent as possible to avoid further confusion and help promote the understanding of how the software and scoring works.

Tasks

Waypoint
A point having an ID, geographical coordinates, and optionally an altitude and a name.
Turnpoint
A circle. It is defined by a waypoint with a given radius. In the case of the last turnpoint in a task, it may be a line instead of a circle. In FS 2 x "radius" is used as the length of the line. All turnpoints in FS has an open and close time.
Task
One or more turnpoints make a task.
Note: take off and goal/landing is also called turnpoints.
Take off
Normally the first turnpoint in a task.
Start of Speedsection (SS)
The turnpoint where the measurement of time starts.
Start gate
A time defined on the Start of Speedsection (SS) turnpoint.
A race task has at least one start gate which is normally the same as the open time of the turnpoint. It may have more start gates in which case it is a race with multiple start gates. A pilot is given as start-time the nearest start gate prior the actual time the pilot took the turnpoint.
End of Speedsection (ES)
The turnpoint where the measurement of time ends.
Sometimes goal, but sometimes a turnpoint before goal for safety reasons.
Goal
Normally the last turnpoint in a task (unless it is an open distance task).
Can be either a circle or a line. Goal is normally also the landing field.
"Race" task
A task with two or more turnpoints where one turnpoint is the start of speedsection (SS) and has one or more start gates, and another (later) turnpoint is the end of speedsection (ES).
The pilot's start-time is the nearest start gate prior the actual time the pilot took the SS turnpoint.
"Elapsed time" task
A task with two or more turnpoints where one turnpoint is the start of speedsection (SS), and another (later) turnpoint is the end of speedsection (ES).
There are no start gates and the pilot's start-time is the actual time the pilot took the SS turnpoint.
"Open distance" task
A task with one or more turnpoints. A pilot's performance is the distance flown via all turnpoints then straight in any direction from the last turnpoint.
A "true" open distance obviously has only one turnpoint which is the take off.
"Open distance on a heading" task
A task with one or more turnpoints + a heading from last turnpoint.
In FS this heading is defined by adding a "heading" point to the task. The "heading" point is not a turnpoint and is not intended to be flown to, only to be used to find the heading one should fly from the last turnpoint in the task. So, If you fly off the straight line from the last turnpoint to the heading point do not turn towards it, keep flying in the original heading showing on your GPS just after you took the last turnpoint.