The charts below show the leg distances required to fly FAI Triangle and Flat Triangle circuit flights, grouped by the different scoring tiers. The score multipliers shown in the headings are for UK flights and the 5km group is only available for Club leagues.
FAI Triangles must satisfy the 28% leg rule, which states that the shortest leg must not be less than 28% of the total leg distance. The two diagrams in each group show the maximum (all legs equal) and the minimum (two 28% legs) required to fly the task. The distance you fly out from your base leg is shown for information only.
Flat Triangles must satisfy the 20% height rule, which states that the height of the triangle must be at least 20% of the longest leg. The two diagrams in each group cover the range of leg configurations and show the distance that you must fly out from your longest leg to complete the task.
| 25km FAI Triangle score: x 2.8 = 70 | 25km Flat Triangle score: x 2 = 50 |
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| 15km FAI Triangle score: x 2.2 = 33 | 15km Flat Triangle score: x 1.5 = 22.5 |
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| 5km FAI Triangle score: x 1.6 = 8 | 5km Flat Triangle score: x 1.3 = 6.5 |
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