Figures are nominal manufacturer and reference data, shown for comparison. The 40/43 row uses the 40's dimensions; the 43 added extended transoms. The Barreau-Neuman 45 was lengthened to 14.63 m (48 ft) as standard from 2017; its design length is shown. Light displacement for the Danson 45 is an estimate, as published figures vary. SA/D is calculated on light displacement and upwind sail area (mainsail plus primary headsail) for consistency across all four boats, and is indicative only.