The incredible Infiniti 52

Published on August 19th, 2023

When it comes to displacement, racing yachts today cover the widest spectrum – from fully flying AC75s to the heavyweight J Class. In between lie light displacement and planing boats, and now, filling their own unique sector, are yachts fitted with a lateral foil, or retractable Dynamic Stability Systems (DSS) foil, the latest of which is the Infiniti 52.

The Infiniti 52 follows on from the company’s Infiniti 36 and Infiniti 46. The first example of this Hugh Welbourn-designed offshore racer, Helsinki lawyer Arto Linnervuo’s Tulikettu, was launched in early 2022.

She was sea trialed on the Solent in the spring of 2022 where she managed 28 knots, while her creators anticipate the design is capable of regularly achieving 30-plus knots. Sadly Tulikettu suffered a severe collision during a delivery trip off north-west Spain at the end of April 2022. Her crew abandoned ship and after an unsuccessful search she was presumed sunk.

However, in an incredible turn of events, Tulikettu was spotted by a passing yacht. That yacht’s crew reached out to the team via their social media channels and the search operation was immediately restarted.

Tulikettu was found approximately 100 nautical miles west of Cape Saint Vincent, the southern tip between Lisbon and Gibraltar. The yacht was towed to the port of Portimão where she underwent a thorough inspection and assessment of damage sustained.

In another incredible turn of events, the damage was not as significant as was originally thought and the boat was able to be repaired and relaunched. She recently completed the very heavy weather 2023 Rolex Fastnet Race, so any fears of another failure will have been very much allayed.

The basics of the DSS foil are generally understood, deployed to leeward, it provides lift that is ‘dynamic’, ie the faster the boat goes, the more lift and righting moment the foil automatically generates. It’s like having extra crew miraculously appear on the rail or bulb weight increase whenever a gust hits. – Full story

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