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Old 01-14-2011, 03:20 AM   #27
troy safari carpente
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Joined: Nov 2005
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WPM's, WPS', GPS' and how to find your ASS from your DSS


Remember! This type of navigation is for the most part, only in the "off piste" sand dune and open desert stages.

On stages like 1, 2 and 3 and even stages 12 and 13, where the course follows primarily defined tracks and trails... the course is primarily navigated using road book and odometer... GPS point are there to confirm the competitor FOLLOWS the entire itinerary of the course.

Difference between a WPS (Safety) and a WPM (Hidden):

WPS is to allow the competitors to pass the route in safety (that is to say these designate a particular hinder or passage ie; the opening to a valley through a pass, a specific river crossing etc.). Which is part of the reason that the GPS unlocks at the more generous radius of 3000m, BUT is more precise in it's definition of the center of point (90m) where the WP is acquired. ie; to find a gap thru a rocky valley or deep gorge, the road book setter defines exactly where to pass, so as not to have folk falling down chasms etc.

WPM are typically the GPS reference points that the riders must "find" in the open piste (sand dunes) in order to complete the course as set... Kind of like electronic "connect the dots". between these points it is using the compas and CAP headings given in the roadbook that are used to navigate. having found that waypoint, the GPS aquires it and you proceed to look for the next...

Both WPMs and WPS points have time penalties applied to them for failing to pass via that point, these penalties vary according to the table in the competition standard regulations.
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Originally Posted by Etienne;

"What ees all 'zis f5uss about...?"

troy safari carpente screwed with this post 01-14-2011 at 03:40 AM
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