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The damage detected on the Grand Léjon is a reminder of a reality well known to wooden boat owners: structural fragility in the face of biological agents.
Fungal attack revealed during refit
The diagnosis was made in the classic context of annual maintenance. However, on dismantling certain parts of the hull, the teams discovered advanced wood degradation. The structure shows cubic rot, characterized by disintegration into small blocks.
This type of weathering is linked to a lignivorous fungus, currently being identified. The question of merula has been raised, without confirmation at this stage. The attack is not confined to the dead works, but extends under the ballast, complicating access and treatment.
For operators of old sailing ships, this type of pathology remains a major point of vigilance, particularly on sailing vessels exposed to humidity and temperature variations.
A deeply weakened wood structure
Initial surveys revealed a few planks to be replaced on the starboard side, along with two frames and some stringers. However, dismantling quickly extended the scope of the work.
The need to remove part of the concrete ballast indicates that the structural damage is lower than expected. In this case, recovery is no longer limited to localized replacement, but involves more extensive structural work.
This type of project calls for a complete overhaul of the contaminated areas, with removal of the affected wood, fungicide treatment and identical reconstruction using traditional marine carpentry techniques.
A shipyard shifting to heavy-duty work
Initially planned for two to three weeks, the work is now set to take longer. We plan to transfer the boat to a hangar, so that we can work in dry conditions and under controlled conditions.
This is a common choice for wooden units, as it stabilizes humidity and prevents the fungus from spreading during construction. It also facilitates deep dismantling operations.
But it automatically increases costs, in terms of handling, rental of covered space and labor time.
A fragile economic balance for associations
The initial budget of between 10,000 and 15,000 euros has already been exceeded. Initial estimates suggest at least 12,000 euros for the framework alone, not including contingencies.
For a management association, this type of unforeseen event puts a strain on cash flow. Recourse to a kitty and subsidies becomes essential to absorb the extra costs.
A fundraising campaign has been launched to support the work: https://www.helloasso.com/association.../formulaires/3
This business model remains common in the preservation of floating heritage, where maintenance is largely dependent on mixed public and private financing.
A calendar challenge for the maritime season
Beyond the technical aspects, it's the timetable that's worrying. The stated aim is to have the boat back in the water by Ascension weekend 2026, with the Binic maritime festival in sight.
This type of event determines part of the boat's activity and visibility. A delay in construction could have an impact on the entire season.
And for maritime heritage enthusiasts and professionals alike, the case of the Grand Léjon is a reminder of the obvious: a wooden boat never stands still, but is constantly being monitored, dismantled and rebuilt.
