Erwan Le RouxOcean Fifty trimaran designed by VPLP and built by Persico Marine, launched in 2020; raced by Erwan Le Roux as Koesio and then Plastic Odyssey Fifty.
Identity card
- LaunchedThe moment a new boat touches the water for the first time.See in the glossary
- 2020
- ShipyardThe company that builds the boat, or carries out major work on it.See in the glossary
- Persico Marine
- Designer(s)The designer of the boat: hull shape, appendages, structure, sail plan.See in the glossary
- VPLP Design
- DesignThe drawing a boat is built from; sister-ships share the same design.See in the glossary
- VPLP Design Ocean Fifty 2020
- GenerationBuild period: boats of the same generation often share the same technical choices.See in the glossary
- Not provided
- Hull typeHow many hulls the boat has: monohull, catamaran or trimaran.See in the glossary
- TrimaranA multihull with three hulls: a central hull and two side floats.See in the glossary
- StatusWhere the boat stands today: active, retired from racing, lost, in a museum or converted.See in the glossary
- ActiveStill sailing.See in the glossary
- SponsorsA company or institution that funds a boat, a team or a skipper in exchange for visibility.See in the glossary
- Koesio · Title sponsorThe company that gives its name to the boat or team.See in the glossary · since 2021
- OwnersThe person or organisation that owns the boat, which does not necessarily race it.See in the glossary
- Not provided
- Operating teamThe organisation running one or more racing boats: technical crew, logistics, partners.See in the glossary
- Not provided
- SuppliersA company that supplies part of the boat's equipment: sails, mast, electronics, foils, keel, energy.See in the glossary
- Not provided
- Sail numberThe identifier printed on the mainsail: a country code followed by a number.See in the glossary
- Not provided
- FlagThe country the boat is registered in.See in the glossary
- France
- Keel typeThe weighted fin under a monohull's hull, which stops it drifting sideways and keeps it upright.See in the glossary
- Not provided
- FoilsAn underwater wing that lifts the boat so it drags less in the water and goes faster.See in the glossary
- Not provided
- Hull materialWhat the hull is made of: carbon, glass fibre, composite, aluminium, wood or steel.See in the glossary
- CompositeA material made of fibres (glass, carbon, flax…) set in resin.See in the glossary
- Hull lengthLength of the hull alone, without the bowsprit or protruding appendages.See in the glossary
- 15.24m
- Max beamMaximum width of the boat; for a multihull, from one float to the other.See in the glossary
- 15.2m
- DraftHow deep the boat sits: from the waterline to the lowest point of the keel.See in the glossary
- 3.5m
- Air draftHeight of the boat above the water: from the waterline to the top of the mast.See in the glossary
- 21.77m
- DisplacementThe mass of the boat ready to sail, equal to the mass of water it displaces.See in the glossary
- Not provided
- Upwind sail areaSail area carried when the boat sails towards the wind: mainsail and headsail.See in the glossary
- 177m²
- Downwind sail areaSail area carried with the wind on the beam or from behind, with the big headsails.See in the glossary
- 265m²
History
This Ocean Fifty trimaran (the former Multi50 class) was launched in 2020 for Fabrice Cahierc. Designed by VPLP with a structure entirely engineered in-house to be as light as the rule allows, it was built by Persico Marine.
Taken over by Erwan Le Roux, it was renamed Koesio in 2021 in the colours of the digital services company, in time for the Transat Jacques Vabre. Under that name it won the Ocean Fifty class of the 2022 Route du Rhum.
On 26 October 2025, shortly after the start of the Transat Café L'Or, the trimaran capsized overnight; Erwan Le Roux and Audrey Ogereau were rescued. Fully rebuilt in La Rochelle over the winter, it was relaunched on 16 April 2026 as Plastic Odyssey Fifty, in partnership with the Plastic Odyssey organisation.
Names and sail numbers
What the boat was called and the numbers it sailed under.
Life timeline
Names, skippers, shipyards and races, in one place.
- Podium
- Finished
- Retired
- Yard work
Detailed timeline
2026
Launch · 16 April 2026
Relaunch after rebuild
Relaunched in La Rochelle after a full rebuild, the trimaran becomes Plastic Odyssey Fifty.
Renamed
Plastic Odyssey Fifty
2025
Capsize · 26 October 2025
Capsize during the Transat Café L'Or
The trimaran capsized overnight a few hours after leaving the Seine bay; Erwan Le Roux and Audrey Ogereau were rescued.
2022
9 November 2022 · raced as Koesio
2021
SkipperThe sailor in command of the boat, responsible for it in the race.See in the glossary · since 2021
Erwan Le RouxLaunched as
Koesio
Unknown date
In figures
Computed from the results in the directory.
- StartsRaces started in finished editions. Non-starters (did not start, withdrawn) are not counted.See in the glossary
- 1
- WinsFirst place in the division: same edition, same class.See in the glossary
- 1
- PodiumsTop three in the division: same edition, same class.See in the glossary
- 1
- Adjusted finish rateLower bound of the 95 % confidence interval (Wilson) of the finish rate: a boat with 1 finish out of 1 start gets 21 %, not 100 %. Greyed out under 5 starts.See in the glossary
- 21%
- raw: 100%
- 1 startSmall sample
- Mean performanceMean of the percentiles of the classified results. Greyed out under 3 classified results.See in the glossary
- 100%
- 1 classified resultSmall sample
Computed on 6 Oct 2026.
- LongevityYears from launch to the last start, starts, names carried and skippers.See in the glossary
- 2 years
- 1 starts · 2 names · 1 skippers
Sillage ratingGlicko-2 rating computed per class from every edition: each result counts as duels against the rest of the fleet, one edition weighing one game. Starts at 1,500; provisional while its deviation is above 110.See in the glossary
Per class; the band shows the uncertainty (±2 deviations, about 95 %).
- Sillage ratingGlicko-2 rating computed per class from every edition: each result counts as duels against the rest of the fleet, one edition weighing one game. Starts at 1,500; provisional while its deviation is above 110.See in the glossary
- 1,662
- ± 581
- 1 edition ratedProvisional
- Best ratingHighest rating once established (deviation up to 110).See in the glossary
- —
Computed on 6 Oct 2026.
Race record
Page reliability
6 sources · updated 6 Oct 2026