Three-Quarter Ton class was an offshore sailing class of the International Offshore Rule racing the Three-Quarter Ton Cup between 1974 and 1994; boats rated below 24,5.1994 October Yachting World: "One Ton Cup, The Most Competitive Trophy", p.88-89histoiredeshalfs.com: "SOMMAIRE des ONE TONNERS UTILISES avec la jauge IOR"

Boats C&C 3/4 Ton DB-1 DB-2 SHE 36 UFO 34 X-102

See also Mini Ton class Quarter Ton class Half Ton class One Ton class Two Ton class Midget Ocean Racing Club

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