Rule 15.12 Land Run (LRN)

15.12 LAND RUN (LRN)

15.12.1 Competitors will attempt to achieve the greatest area of a triangle "A", "B" and "C"

15.12.2 Task data:

a. location of point "A"

b. method of determining point "B"

c. method of determining point "C"

d. description of scoring area(s)

15.12.3 The result is the area of triangle ABC. Greatest result is best.

Breakdown

A Land Run is very similar to an Elbow. The difference is that rather than attempting to achieve the maximum change in direction, the pilot is trying to achieve the largest triangle composed of three marks which designate the vertices or points of the triangle. A sample of the shape with the scoring area highlighted in red is on the left.

Land Runs are often bound by airspace restrictions, such as a circle. This would mean that there is a virtual circle which all marks must be placed inside. This would be an equilateral triangle.

Another common constraint to place is either distance or time requirements between the points. This would mean saying that point B must be made no more than 10 minutes after point A, or point C must be no more than 4 km from point B. In these cases, an understanding of wind speeds and directions is critical in order to understand what optimizes the triangle's area.

The A marker is not always a logger mark. It could be a set point, where pilots only place points B and C.

Task Data Description

15.12.2 Task data:

location of point "A"
- - This tells the pilots where the triangle's A point is, typically either as a logger mark or a 4/4 Coordinate.
method of determining point "B"
- - This tells the pilot how to set their B point, often as a logger mark. It may also place a time or distance stipulation on this mark.
method of determining point "C"
- - This tells the pilot how to set their C point, often as a logger mark. It may also place a time or distance stipulation on this mark.
description of scoring area(s)
- - This tells the pilots what areas are valid for scoring purposes, such as the parameters of the circle described in the above Breakdown.

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