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Event October 2023


24-hour race for Ultim maxi trimaran sailing yachts, requiring highly accurate tracking.

Contact us

Course trimaran Ultim 24hUltim

The service

Ocean Tracking is the official supplier of tracking beacons for the 24h record race on the maxi Ultim trimarans: the 24hUltim

Study of needs and proposal adapted to the tracking of a maxi trimaran race lasting 24 hours

Type of beacon selected: SK50

Type and frequency of connection: 2G/4G along the coasts and automatic switch to Iridium as soon as the GSM network is no longer available

with position transmission every minute and every 5 minutes. Recording of positions every 10 seconds when passing virtual waypoints.

Installation and testing

  • Delivery of beacons to Lorient by Ocean Tracking in secure suitcase
  • official distribution and installation of markers by the race organizer
  • Connection tests carried out by Ocean Tracking
  • support: 24/7

The specificities

A 24-hour race on the ULTIM trimarans required very high geolocation precision. The speeds of the boats being high, a delay of a few tens of seconds
can change the display of rankings.

It was agreed with the organizer a position transmission every minute during the first two hours of the race and over the last 30 miles, in between a transmission
position every 5 seconds. Around the virtual waypoints the positions were recorded every 10 seconds. These position recordings were sent back to the cartography as soon as the beacons connected via 2G/4G when passing near the coast.
The cartography was entrusted to the specialized company Géovoile to produce very graphic maps.

  • Mapping 24hUltim Mapping
  • Automatic pointing of waypoint crossings and arrivals

Data flows

Provision of data flows to Géovoile management enabling it to run Internet cartography.