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10 Sec.10 Annex 4 Navigation Scoring

compared with
Current by Barney Townsend
on 20 Sep, 2015 18:41.

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_And that comes down to somehow measuring, or simulating that ‘risk’ already mentioned, and inserting it in the scoring so it can be advantageous for pilots to attempt ‘hot-shot’ performances, and various complicated ways of doing this have been tried._

_This argument is not whether a particular mathematical formula is fair or not. It simply proposes to accept the same formula that has been used in slalom scoring for the last six years (with appropriate adaptations) and to apply it to navigation scoring._

The supporting philosophy given by the chairman of CIMA in relation to this system for slalom can be therefore summarised as follows, and we contend that the same can be true of navigation:

 “If a linear scoring system is applied to a task which is part of a competition composed of many tasks, then the reward does NOT increase with the risk, pilots are therefore incentivised to fly conservatively.”

It is the fundamental nature of the classic competition that it should be composed of “many tasks”. And that these tasks be diverse in nature and that a parity of scoring be applied across all that diversity; this proposal furthers that objective.
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A number of different formulae have been tried, but none have attracted universal support; this proposal does not dispute the validity or fairness of the current slalom formula in itself. What is directly unfair is that a different scoring system is used for different task types.

By way of example, the score profiles between slalom and navigation tasks can be compared graphically. The best or simplest way to compare the scores distribution  between two different types of task, e.g. navigation and slalom, is graphically, by plotting the scores against pilot ranking in the task.

The graph in Figure 1 below below shows a comparison between the score profiles received for PF1 class in the World Paramotor Championship 2014, task 3 (Turnpoint Hunt) and Task 5 (Japanese Slalom). The difference in reward between slalom and navigation for the risk taken by the top pilots can be clearly seen. Also plotted on this graph is how the scores for Task 3 (Navigation) would look under this proposal. This proposed score profile is much closer to that of the slalom scoring, making the whole system more fair and true to S10, 4.29.3. !Figure1-1.png|border=1!

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